7Hz G1 Single full-range 10mm DLC DD Universal IEM
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DISCLAIMER
The review I'm about to share reflects my personal experience and provides an honest evaluation regarding this set. I am completely unaffiliated from the brands I review. I did not receive (or will receive) any financial or monetary incentives in exchange for writing this review, I wrote this review of my own free will and all of the opinions you'll read are my own.
This unit was provided by Linsoul Audio for free in exchange for an honest and detailed review. Rest assured, this does not affect my opinions about this set. Thank you, Linsoul, for the continuous support!
INTRODUCTION
A handful of HiFi audio companies have attempted to create IEMs with great gaming performance. Similarly, some gaming companies have tried to make a mark in the audiophile community. Many have tried, but personally, I can't say any of those attempts have been successful—at least not until 7Hz released the 7Hz G1. This set is marketed as a gaming IEM, so my expectations were initially low. However, after using the 7Hz G1 for both critical listening and gaming for over a week, I was pleasantly surprised by how good it is, especially considering its price.
In this review, I'll take a slightly different approach by evaluating the 7Hz G1 from both an audiophile's perspective and a gamer's perspective. Here is the gear I used to test the 7Hz G1:
DAC Dongle: Jcally JM7l & Fiio K11
Phone/Device: Either my iPhone XR or my laptop
Music player: Spotify and Tidal
Games: Bloodborne, Farcry, Borderlands, League of Legends, and Valorant
PACKAGING
The unboxing experience is fairly average compared to other packaging within this price range. However, it includes multiple pairs of eartips in different sizes, which I find better than the typical stock tips provided with budget options like this. Honestly, I didn’t feel the need to use aftermarket eartips. There's also a rubber case included, which is spacious enough to fit both the IEMs and the pack of eartips. As for the stock cable, while there are definitely better options available, the included cable with the G1 gets the job done without any noticeable microphonics.
BUILD QUALITY, DESIGN, AND COMFORT
The shell of this IEM feels very durable, as does the cable. It's not common to find a full-metal shell in this price range, so it's great to have another option like this. The shell design is pretty average and minimal—nothing particularly noteworthy. Even the shape of the shell is quite standard in terms of aesthetics. But when it comes to comfort? This is one of the most comfortable IEMs I've ever tried. It fits my ears perfectly, with no harsh corners or bulky bumps. I can wear it all day without even noticing it.
SOUND IMPRESSIONS
The 7Hz G1 follows the Harman target but leans slightly more toward a V-shaped sound signature. The tuning feels fun and lively, striking a balance that ensures you'll never find it boring while still maintaining coherence and clarity.
This set is tuned to appeal to a wide audience, making it enjoyable for virtually any track. The 7Hz G1 is a great choice for anyone looking for a fun sound signature and an all-rounder IEM.
Bass
The bass region is very authoritative, and I feel it could appeal to some bass-heads as well. You'll definitely hear and feel the bass—it makes its presence known. The balance between sub-bass and mid-bass is well-tuned, allowing the sub-bass rumble to shine without overpowering the mid-bass punch and attack. The bass decay is spot-on—not too slow and not too fast—adding to the immersive feel of this IEM.
Mids
I wasn’t expecting this level of clarity in the G1’s midrange, especially given its tuning and how well-bodied the bass region is—but it’s just that good. There’s no muddiness in the lower midrange, and the upper midrange is relatively forward as well, bringing vocals to the forefront without feeling overly intimate. I personally love my upper midrange slightly boosted, so I really enjoyed this set. However, I can see how some listeners might find it a tad too aggressive.
Treble
The treble region is full of energy and has a satisfying sparkle. There’s not much else to say, but I loved how the treble is tuned. There’s also a good amount of air, which adds to the spaciousness of the overall sound. That said, I think a touch more treble smoothness and slightly toned-down energy could make this IEM even better. However, if you love highly energetic treble with good texture, this set is for you. The higher frequencies don’t feel dry at all.
Details and Soundstage
The detail retrieval of the 7Hz G1 is above average for its price range. It holds its own against other well-known IEMs in the sub-$60 category, such as the Truthear Zero, Zero Red, and Twistura D-Major. You can easily pick up micro-details, which adds a textured and colorful feel to this IEM. For me, though, the imaging and soundstage of the G1 are what truly stand out beyond its tuning. The soundstage offers impressive depth, but the width is even better, paired with excellent imaging accuracy. This makes the G1 particularly well-suited for gaming.
GAMING
For gaming, I tested this IEM across various genres—casual story-based games, MOBA, FPS, and even competitive titles where technical precision is crucial. All I can say is that the 7Hz G1 delivers. Pinpointing footsteps is relatively easy thanks to its accurate imaging, and the soundstage further enhances this capability.
That said, I think the G1 is better suited for casual games rather than highly competitive ones like Valorant or CS:GO. While its imaging and detail retrieval are impressive, the bass region leans more toward providing an immersive experience rather than pure clarity.
Don’t get me wrong—it’s still a solid choice for competitive games, but I found myself appreciating the G1 more in story-driven and one-shot games because of its added immersion.
CONCLUSION
I’ve been using the Truthear Zero Reds as my go-to gaming IEM, but I think I’ve found a better, cheaper, and more comfortable option specifically for gaming. I never imagined a gaming IEM could sound this good.
The 7Hz G1 is one of the easiest 5-star ratings I’ve ever given to a budget set. It’s a must-have, especially for audiophiles who also love gaming.
LINKS
Linsoul website: https://www.linsoul.com/
Linsoul Aliexpress Store: https://ddaudio.aliexpress.com/store/2894006
Linsoul USA Amazon Store link: https://www.amazon.com/s?me=A267P2DT104U3C&marketplaceID=ATVPDKIKX0DER
7hz G1: https://www.linsoul.com/products/7hz-g1
The review I'm about to share reflects my personal experience and provides an honest evaluation regarding this set. I am completely unaffiliated from the brands I review. I did not receive (or will receive) any financial or monetary incentives in exchange for writing this review, I wrote this review of my own free will and all of the opinions you'll read are my own.
This unit was provided by Linsoul Audio for free in exchange for an honest and detailed review. Rest assured, this does not affect my opinions about this set. Thank you, Linsoul, for the continuous support!
INTRODUCTION
A handful of HiFi audio companies have attempted to create IEMs with great gaming performance. Similarly, some gaming companies have tried to make a mark in the audiophile community. Many have tried, but personally, I can't say any of those attempts have been successful—at least not until 7Hz released the 7Hz G1. This set is marketed as a gaming IEM, so my expectations were initially low. However, after using the 7Hz G1 for both critical listening and gaming for over a week, I was pleasantly surprised by how good it is, especially considering its price.
In this review, I'll take a slightly different approach by evaluating the 7Hz G1 from both an audiophile's perspective and a gamer's perspective. Here is the gear I used to test the 7Hz G1:
DAC Dongle: Jcally JM7l & Fiio K11
Phone/Device: Either my iPhone XR or my laptop
Music player: Spotify and Tidal
Games: Bloodborne, Farcry, Borderlands, League of Legends, and Valorant
PACKAGING
The unboxing experience is fairly average compared to other packaging within this price range. However, it includes multiple pairs of eartips in different sizes, which I find better than the typical stock tips provided with budget options like this. Honestly, I didn’t feel the need to use aftermarket eartips. There's also a rubber case included, which is spacious enough to fit both the IEMs and the pack of eartips. As for the stock cable, while there are definitely better options available, the included cable with the G1 gets the job done without any noticeable microphonics.
BUILD QUALITY, DESIGN, AND COMFORT
The shell of this IEM feels very durable, as does the cable. It's not common to find a full-metal shell in this price range, so it's great to have another option like this. The shell design is pretty average and minimal—nothing particularly noteworthy. Even the shape of the shell is quite standard in terms of aesthetics. But when it comes to comfort? This is one of the most comfortable IEMs I've ever tried. It fits my ears perfectly, with no harsh corners or bulky bumps. I can wear it all day without even noticing it.
SOUND IMPRESSIONS
The 7Hz G1 follows the Harman target but leans slightly more toward a V-shaped sound signature. The tuning feels fun and lively, striking a balance that ensures you'll never find it boring while still maintaining coherence and clarity.
This set is tuned to appeal to a wide audience, making it enjoyable for virtually any track. The 7Hz G1 is a great choice for anyone looking for a fun sound signature and an all-rounder IEM.
Bass
The bass region is very authoritative, and I feel it could appeal to some bass-heads as well. You'll definitely hear and feel the bass—it makes its presence known. The balance between sub-bass and mid-bass is well-tuned, allowing the sub-bass rumble to shine without overpowering the mid-bass punch and attack. The bass decay is spot-on—not too slow and not too fast—adding to the immersive feel of this IEM.
Mids
I wasn’t expecting this level of clarity in the G1’s midrange, especially given its tuning and how well-bodied the bass region is—but it’s just that good. There’s no muddiness in the lower midrange, and the upper midrange is relatively forward as well, bringing vocals to the forefront without feeling overly intimate. I personally love my upper midrange slightly boosted, so I really enjoyed this set. However, I can see how some listeners might find it a tad too aggressive.
Treble
The treble region is full of energy and has a satisfying sparkle. There’s not much else to say, but I loved how the treble is tuned. There’s also a good amount of air, which adds to the spaciousness of the overall sound. That said, I think a touch more treble smoothness and slightly toned-down energy could make this IEM even better. However, if you love highly energetic treble with good texture, this set is for you. The higher frequencies don’t feel dry at all.
Details and Soundstage
The detail retrieval of the 7Hz G1 is above average for its price range. It holds its own against other well-known IEMs in the sub-$60 category, such as the Truthear Zero, Zero Red, and Twistura D-Major. You can easily pick up micro-details, which adds a textured and colorful feel to this IEM. For me, though, the imaging and soundstage of the G1 are what truly stand out beyond its tuning. The soundstage offers impressive depth, but the width is even better, paired with excellent imaging accuracy. This makes the G1 particularly well-suited for gaming.
GAMING
For gaming, I tested this IEM across various genres—casual story-based games, MOBA, FPS, and even competitive titles where technical precision is crucial. All I can say is that the 7Hz G1 delivers. Pinpointing footsteps is relatively easy thanks to its accurate imaging, and the soundstage further enhances this capability.
That said, I think the G1 is better suited for casual games rather than highly competitive ones like Valorant or CS:GO. While its imaging and detail retrieval are impressive, the bass region leans more toward providing an immersive experience rather than pure clarity.
Don’t get me wrong—it’s still a solid choice for competitive games, but I found myself appreciating the G1 more in story-driven and one-shot games because of its added immersion.
CONCLUSION
I’ve been using the Truthear Zero Reds as my go-to gaming IEM, but I think I’ve found a better, cheaper, and more comfortable option specifically for gaming. I never imagined a gaming IEM could sound this good.
The 7Hz G1 is one of the easiest 5-star ratings I’ve ever given to a budget set. It’s a must-have, especially for audiophiles who also love gaming.
LINKS
Linsoul website: https://www.linsoul.com/
Linsoul Aliexpress Store: https://ddaudio.aliexpress.com/store/2894006
Linsoul USA Amazon Store link: https://www.amazon.com/s?me=A267P2DT104U3C&marketplaceID=ATVPDKIKX0DER
7hz G1: https://www.linsoul.com/products/7hz-g1
DISCLAIMER
I would like to thank Linsoul for providing this review unit.
The 7Hz G1 can be gotten here: https://www.linsoul.com/products/7hz-g1(no affiliate links).
INTRODUCTION
The G1 is different from the run-of-the-mill weekly sidegrade releases, in that this IEM is touted to be a gaming-focused IEM. Let's read on to check out if these claims are legit!
SPECIFICATIONS
ACCESSORIES
Other than the IEM, these are included:
- 5 pairs of silicone eartips (XS/S/M/L/XL)
- Case
- Cable
For a $30ish USD IEM, we have quite a decent accessory spread.
The provided eartips range from XS to XL, and are comfortable during usage.
The stock cable is a 2-pin oxygen-free copper cable. It is quite tangly, with microphonics present, and honestly is nothing to write home about. During ordering, one can opt for a mic version - useful if one needs a set for gaming or calls - or a slightly cheaper non-mic version. As we have discussed, the G1 is designed to be specialist gaming IEM, so it might not be a bad idea to select the mic version if you are obtaining it for this purpose.
Lastly, we have a practical soft carrying case. It is quite spacious, with a lanyard to hook it.
The rest of this review was done with the stock cable and stock silicone eartips. No aftermarket accessories were used, so as not to add any confounders to the sound.
BUILD/COMFORT
Fashioned from metal with a matte finish, the G1 is bean-shaped and small in profile. Personally, I did not encounter issues using it for longer listening sessions in terms of comfort, but the nozzle lies on the shorter side, and I suspect those with gargantuan ears might find the nozzle length to be sub-optimal. Thankfully, this may possibly be mitigated with a longer nozzle aftermarket eartip.
Being a heavily vented IEM, isolation is below average. However, there is no driver flex, which is always a plus in my book.
INTERNALS
The 7Hz G1 packs a 10 mm DLC diaphragm with N52 magnets.
DRIVABILITY
I tested the G1 with the following sources:
- Apple dongle
- Cayin RU7
- Chord Mojo 2
- Fiio KA15 dongle
- Fiio KA17 dongle
- Khadas Tone Board -> Schiit Asgard 3 amp
- Questyle M15 DAC/AMP dongle
- Sony Walkman NW A-55 DAP (Walkman One WM1Z Plus v2 Mod)
- Sony Walkman NW WM1A DAP (Walkman One WM1Z Plus v2 Mod)
- Smartphone
This IEM is easily driven, with no hard requirements for amplification.
SOUND & TECHNICALITIES
Graph of the 7Hz G1 via IEC711 coupler. 8 kHz is a coupler artefact peak.
Tonally, the G1 sports a crisp and bright Harmanish profile with a sub-bass boost.
The sub-bass focus furnishes good rumbling descent, though quantity wise, it may not be for bassheads as there is some thinning out of the mid-bass. The bass is however, tight and fast, with good texturing, so this is a case of quality over brute quantity. Bass has no bleed to muddy the midrange, and it isn't boomy to obscure footsteps or gun shots, which is its original purpose as a gaming IEM.
The lower midrange is crystal clear, with no bass encroachment, as discussed. The upper mids hit nearly 10 dB ear gain - this translates to forward vocals at low to moderate volumes, but those from the anti-pinna gain gang might find this area a tinge shouty, especially at louder volumes (Fletcher Munson curve).
The lower treble is resolving, with good sparkle. Those with treble sensitivities may find this area a hair bright, but once again treble sensitivity is dependent on hearing health, eartip choice, volume played at, source, ear anatomy etc. But for sure, what we hear is good clarity and nuanced micro-details, though there are instances of sibilance.
Timbre is quite well portrayed, though note weight is on the lighter side.
The G1 is arguably a gatekeeper at the $30ish bracket when it comes to technicalities. Soundstage is wide and projects beyond the ears, with pinpoint imaging. Layering and instrument separation belie its humble price point and the G1 definitely lives up to its namesake of a gaming IEM due to these properties. Indeed, it may even compete with pricier single DDs in this department.
COMPARISONS
The 7Hz G1 will be compared against other budget single DDs around $30 USD. Planars, BAs and hybrids are left out of the conversation, as the different transducer types have their own pros and cons.
Tin HIFI C2 2025
The C2 2025 is a warmer IEM, with less boost in the upper mids and lower treble. Sibilance and fatigue are hence mitigated on the C2 2025, though in all other metrics other than note weight, the C2 2025 is inferior.
The C2 2025 has a claustrophobic soundstage, with veiled imaging and instrument separation, and is a league behind in technical aspects. It also has a more flabby bass that has less texture.
Simgot EW200
The EW200 furnishes a bright Harmanish profile. It has less sub-bass and sounds a bit more anemic in the low-end.
The EW200 has a smaller soundstage and weaker imaging, and is a marginal downgrade from the 7Hz G1.
CONCLUSIONS
With every week churning out more and more Harmanish releases, a decent sounding IEM can be easily lost in the purgatory of sidegrade spam. Thankfully, despite being tuned to a bright Harmanish affair, the 7Hz G1 stands out from the competition, courtesy of its technical prowess.
Touted to be a budget gaming IEM, the G1 surpasses expectations for the coin, with class-leading imaging and layering on display. Verily, the G1 may even beat higher priced single DDs in this arena, and coupled with a fast and clean bass - plus a transparent midrange - the G1 certainly fits the bill for a gaming IEM.
This is no one-trick-pony though, and other than gaming, the 7Hz G1 can also be used for music appreciation, with its outstanding technical chops, easy drivability, good fit and build. Nothing is perfect, and there are some nitpicks, such as a thinner note weight, below average isolation and perhaps the pinna-gain sensitive and treble-averse folk might find the tuning polarizing in the top-end.
Transcending the usual Harman sidegrade hoards, the G1's calling card is its imaging and layering. It has the price-to-performance ratio to back it up too, and the G1 gets my recommendation for gamers and newbies looking for an affordable entry IEM. I would also peg the 7Hz G1 as one of the new benchmarks at the $30 range for a technical and single DD, dethroning the previous incumbent in the Simgot EW200.
I would like to thank Linsoul for providing this review unit.
The 7Hz G1 can be gotten here: https://www.linsoul.com/products/7hz-g1(no affiliate links).
INTRODUCTION
The G1 is different from the run-of-the-mill weekly sidegrade releases, in that this IEM is touted to be a gaming-focused IEM. Let's read on to check out if these claims are legit!
SPECIFICATIONS
- Driver configuration: 10 mm DLC dynamic driver
- Frequency response: 10 Hz - 20000 Hz
- Impedance: 18 Ω
- Sensitivity: 107 dB/V
- Cable: 2-pin 0.78 mm; oxygen-free copper cable; 3.5 mm termination
- Tested at: $34.99 USD for non-mic version; $36.99 USD for mic version
ACCESSORIES
Other than the IEM, these are included:
- 5 pairs of silicone eartips (XS/S/M/L/XL)
- Case
- Cable
For a $30ish USD IEM, we have quite a decent accessory spread.
The provided eartips range from XS to XL, and are comfortable during usage.
The stock cable is a 2-pin oxygen-free copper cable. It is quite tangly, with microphonics present, and honestly is nothing to write home about. During ordering, one can opt for a mic version - useful if one needs a set for gaming or calls - or a slightly cheaper non-mic version. As we have discussed, the G1 is designed to be specialist gaming IEM, so it might not be a bad idea to select the mic version if you are obtaining it for this purpose.
Lastly, we have a practical soft carrying case. It is quite spacious, with a lanyard to hook it.
The rest of this review was done with the stock cable and stock silicone eartips. No aftermarket accessories were used, so as not to add any confounders to the sound.
BUILD/COMFORT
Fashioned from metal with a matte finish, the G1 is bean-shaped and small in profile. Personally, I did not encounter issues using it for longer listening sessions in terms of comfort, but the nozzle lies on the shorter side, and I suspect those with gargantuan ears might find the nozzle length to be sub-optimal. Thankfully, this may possibly be mitigated with a longer nozzle aftermarket eartip.
Being a heavily vented IEM, isolation is below average. However, there is no driver flex, which is always a plus in my book.
INTERNALS
The 7Hz G1 packs a 10 mm DLC diaphragm with N52 magnets.
DRIVABILITY
I tested the G1 with the following sources:
- Apple dongle
- Cayin RU7
- Chord Mojo 2
- Fiio KA15 dongle
- Fiio KA17 dongle
- Khadas Tone Board -> Schiit Asgard 3 amp
- Questyle M15 DAC/AMP dongle
- Sony Walkman NW A-55 DAP (Walkman One WM1Z Plus v2 Mod)
- Sony Walkman NW WM1A DAP (Walkman One WM1Z Plus v2 Mod)
- Smartphone
This IEM is easily driven, with no hard requirements for amplification.
SOUND & TECHNICALITIES
Graph of the 7Hz G1 via IEC711 coupler. 8 kHz is a coupler artefact peak.
Tonally, the G1 sports a crisp and bright Harmanish profile with a sub-bass boost.
The sub-bass focus furnishes good rumbling descent, though quantity wise, it may not be for bassheads as there is some thinning out of the mid-bass. The bass is however, tight and fast, with good texturing, so this is a case of quality over brute quantity. Bass has no bleed to muddy the midrange, and it isn't boomy to obscure footsteps or gun shots, which is its original purpose as a gaming IEM.
The lower midrange is crystal clear, with no bass encroachment, as discussed. The upper mids hit nearly 10 dB ear gain - this translates to forward vocals at low to moderate volumes, but those from the anti-pinna gain gang might find this area a tinge shouty, especially at louder volumes (Fletcher Munson curve).
The lower treble is resolving, with good sparkle. Those with treble sensitivities may find this area a hair bright, but once again treble sensitivity is dependent on hearing health, eartip choice, volume played at, source, ear anatomy etc. But for sure, what we hear is good clarity and nuanced micro-details, though there are instances of sibilance.
Timbre is quite well portrayed, though note weight is on the lighter side.
The G1 is arguably a gatekeeper at the $30ish bracket when it comes to technicalities. Soundstage is wide and projects beyond the ears, with pinpoint imaging. Layering and instrument separation belie its humble price point and the G1 definitely lives up to its namesake of a gaming IEM due to these properties. Indeed, it may even compete with pricier single DDs in this department.
COMPARISONS
The 7Hz G1 will be compared against other budget single DDs around $30 USD. Planars, BAs and hybrids are left out of the conversation, as the different transducer types have their own pros and cons.
Tin HIFI C2 2025
The C2 2025 is a warmer IEM, with less boost in the upper mids and lower treble. Sibilance and fatigue are hence mitigated on the C2 2025, though in all other metrics other than note weight, the C2 2025 is inferior.
The C2 2025 has a claustrophobic soundstage, with veiled imaging and instrument separation, and is a league behind in technical aspects. It also has a more flabby bass that has less texture.
Simgot EW200
The EW200 furnishes a bright Harmanish profile. It has less sub-bass and sounds a bit more anemic in the low-end.
The EW200 has a smaller soundstage and weaker imaging, and is a marginal downgrade from the 7Hz G1.
CONCLUSIONS
With every week churning out more and more Harmanish releases, a decent sounding IEM can be easily lost in the purgatory of sidegrade spam. Thankfully, despite being tuned to a bright Harmanish affair, the 7Hz G1 stands out from the competition, courtesy of its technical prowess.
Touted to be a budget gaming IEM, the G1 surpasses expectations for the coin, with class-leading imaging and layering on display. Verily, the G1 may even beat higher priced single DDs in this arena, and coupled with a fast and clean bass - plus a transparent midrange - the G1 certainly fits the bill for a gaming IEM.
This is no one-trick-pony though, and other than gaming, the 7Hz G1 can also be used for music appreciation, with its outstanding technical chops, easy drivability, good fit and build. Nothing is perfect, and there are some nitpicks, such as a thinner note weight, below average isolation and perhaps the pinna-gain sensitive and treble-averse folk might find the tuning polarizing in the top-end.
Transcending the usual Harman sidegrade hoards, the G1's calling card is its imaging and layering. It has the price-to-performance ratio to back it up too, and the G1 gets my recommendation for gamers and newbies looking for an affordable entry IEM. I would also peg the 7Hz G1 as one of the new benchmarks at the $30 range for a technical and single DD, dethroning the previous incumbent in the Simgot EW200.
Preface:
You can purchase G1 at the following link (not an affiliate link):
https://www.linsoul.com/products/7hz-g1?_pos=2&_fid=3e69a7c5f&_ss=c
Also, I’m not a seasoned reviewer, so whatever I say is purely my observations and your results may vary.
I’m not the one to usually focus on specifications and numbers. I focus more on how happy I am with the equipment’s sound and that’s it.
Disclaimer: This is a review unit from Linsoul however I retain full editorial control and the opinions expressed here are solely my own. I have not been paid or compensated by Linsoul, Tripowin or any other entity for this review. My assessment is based solely on my personal experience with the product.
I do get to keep the unit after review but that had no influence over the opinions expressed below.
Linsoul Store links (None of them are affiliate links):
Linsoul website: https://www.linsoul.com/
Linsoul Aliexpress Store: https://ddaudio.aliexpress.com/store/2894006
Linsoul USA Amazon Store link: https://www.amazon.com/s?me=A267P2DT104U3C&marketplaceID=ATVPDKIKX0DER
Sources used:
7Hz, is already a known name in the audiophile world, hails from China. They've quickly gained a reputation for producing IEMs that offer exceptional value for money, often punching well above their weight class. Personally, I've been thoroughly impressed with their previous releases, especially the Zero, Zero 2, and Timeless – each offering a unique flavor of sonic excellence.
Now, 7Hz is back with the G1, a single dynamic driver IEM that promises to deliver a captivating listening experience at an incredibly accessible price point. Let's dive into the specifics and see if it lives up to the hype.
Box Contents:
Specifications:
Impedance : 18Ω
Sound Pressure Level : 107dB/V @ 1kHz
Frequency Range : 10-20,000Hz
THD (Total Harmonic Distortion) : < 0.5% @ 1kHz
Driver Type : 10mm dual-magnetic, dual-cavity dynamic driver
The unboxing experience is simple but satisfying. The G1s arrive in a compact box containing the IEMs themselves, a selection of silicone ear tips, a 0.78mm 2-pin
cable and a round silicone carry case. While there are no extravagant extras, the presentation is clean and efficient, reflecting the G1's focus on delivering core value.
I love the fact that 7Hz included a carry case at this price. While the silicone case is not going to protect the IEMs from any impact, it does protect them frrom other things in your bag.
The IEMs themselves sport a sleek, understated design. The black metal shells (I'm assuming aluminium) are ergonomically shaped and feel comfortable in the ear. They look and feel like small pebbles to be honest. The included cable is decent that minimizes tangling and feels durable enough for everyday use. While not as luxurious as some high-end cables, it's perfectly functional and complements the G1's aesthetic.
The G1s are designed for long listening sessions. The lightweight shells and ergonomic shape ensure a comfortable and secure fit. I was able to wear them for hours on end without any discomfort. A point to note is that that the nozzle length was on the shorter side due to which I had to use tips with longer nozzles. The angle of the nozzle however was well-judged, allowing for a good seal and effective passive noise isolation.
Tonality:
Imagine a warm, inviting living room bathed in the soft glow of a fireplace. That's the kind of warmth the G1s bring to your music. It's a gentle, comforting presence that enhances the listening experience without adding any artificial coloration.
Sub Bass:
The sub-bass plunges into the depths of the music, providing a solid foundation for tracks with a powerful low-end presence. In "Why So Serious?" from the Dark Knight soundtrack, the ominous rumble sends shivers down your spine, while the deep, resonant bassline in "Royals" by Lorde adds a visceral dimension to the track. However, the decay is a touch too quick, preventing the sub-bass from fully blooming and lingering in the air.
Mid-bass:
This is where the G1 truly comes alive. The mid-bass is a masterclass in balance, delivering impact and texture in equal measure. In "Seven Nation Army" by The White Stripes, the iconic bassline hits with a satisfying thump, while the intricate bass work in "Feel Good Inc." by Gorillaz grooves with infectious energy. Each note is defined and articulate, contributing to a rhythmically engaging experience.
Lower Midrange:
Male vocals are enveloped in a warm embrace, adding a sense of intimacy and richness. Leonard Cohen's baritone in "Hallelujah" resonates with emotion and gravitas, while the smooth vocals of Frank Sinatra in "Fly Me to the Moon" are rendered with a velvety smoothness. Female vocals are equally well-served, with a touch of warmth that enhances their presence without sacrificing clarity. However, a slight dip in the lower midrange can sometimes make instruments like cellos and baritone saxophones feel slightly less present in the mix.
Upper Midrange:
This region sparkles with clarity and detail. Vocals, both male and female, are presented with exceptional precision, allowing you to hear every nuance and inflection. In "Hotel California" by the Eagles, the harmonies are beautifully layered, each voice distinct and clear. Instruments like violins and trumpets shine in this region, their timbres rendered with accuracy and vibrancy.
Lower Treble:
The lower treble is where the G1 adds a touch of sparkle and airiness to the music. It's not overly emphasized, but it's present enough to give cymbals a delicate shimmer and hi-hats a crisp attack. Listening to "Little Wing" by Jimi Hendrix, the guitar notes had a beautiful sheen without ever becoming harsh or sibilant. This was particularly noticeable when I paired the G1s with the iBasso DX320, which has a slightly brighter treble presentation.
Upper Treble:
The upper treble, however, is where the G1 shows some restraint. It rolls off gently, which helps to tame sibilance and prevent fatigue during long listening sessions. However, this can also result in a slight loss of air and brilliance in tracks with a lot of high-frequency energy. In "Dreams" by Fleetwood Mac, the shimmering cymbal crashes lacked some of their ethereal quality.
Soundstage:
Imagine yourself in a concert hall, surrounded by musicians. That's the kind of experience the G1s create. The soundstage extends beyond the confines of your head, with a sense of depth and height that adds to the immersion. In "Comfortably Numb" by Pink Floyd, the guitars seem to emanate from different points in space, enveloping you in a sonic tapestry.
Layering and Separation:
Even in the most complex musical passages, the G1s effortlessly separate individual instruments and vocals. In orchestral pieces like Beethoven's Symphony No. 5, the various sections of the orchestra are clearly delineated, allowing you to appreciate the interplay between the different instruments.
Timbre:
Instruments and voices have a natural and realistic quality. The acoustic guitar in "Tears in Heaven" by Eric Clapton resonates with a woody warmth, while the vocals in "Hallelujah" by Jeff Buckley are infused with raw emotion. The G1s capture the essence of each instrument and voice, bringing the music to life.
Detail Retrieval:
While not as resolving as high-end IEMs, the G1s punch well above their weight in terms of detail retrieval. They unveil subtle nuances in the music that might otherwise go unnoticed. In "Clair de Lune" by Debussy, the delicate intricacies of the piano performance are rendered with impressive clarity, allowing you to appreciate the subtle interplay of notes.
7Hz Salnotes Zero 2 vs 7Hz G1: The Zero 2, another excellent offering from 7Hz, has a brighter sound signature with a more pronounced treble presence. The G1, in comparison, is warmer and smoother, with a more relaxed treble presentation. Both IEMs offer excellent detail retrieval and a spacious soundstage, but the G1 has a slight edge in terms of bass impact and overall coherence.
Kinera Celest Wyvern Black vs 7Hz G1: The Wyvern Black has a more balanced sound signature compared to G1 with a slight emphasis on the midrange. It excels at vocal clarity and instrumental separation. The G1, while also balanced, has a warmer tilt and a more impactful bass response. The Wyvern Black might be a better choice for those who prioritize vocal-centric music, while the G1 offers a more engaging and dynamic listening experience.
Kiwi Ears Cadenza vs 7Hz G1: The Cadenza is known for its energetic and vibrant sound signature, with a V-shaped frequency response that emphasizes the bass and treble. The G1, in comparison, is more balanced and refined, with a smoother treble and a more controlled bass response. The Cadenza might appeal to those who prefer a more exciting and impactful sound, while the G1 offers a more nuanced and mature presentation.
Tripowin x 0DiBi Vivace vs 7Hz G1: The Vivace has a warmer and smoother sound signature than the G1, with a thicker note weight and a more relaxed treble. The G1, in comparison, has a slightly brighter tilt and a more agile presentation. Both IEMs offer excellent value for money, but the G1 has a slight edge in terms of technical performance and overall refinement.
Conclusion:
The 7Hz G1 is a testament to the fact that audiophile-grade sound doesn't have to break the bank. They deliver a captivating listening experience that's rich in detail, dynamics, and musicality. While minor shortcomings exist, the G1's strengths far outweigh its weaknesses, making it a true gem in the budget IEM category. Whether you're a seasoned audiophile or just starting your journey into the world of high-fidelity sound, the 7Hz G1 is a compelling option that deserves your attention. It's a reminder that sonic excellence can be found in the most unexpected places, and that sometimes, the most satisfying discoveries are the ones that defy expectations.
You can purchase G1 at the following link (not an affiliate link):
https://www.linsoul.com/products/7hz-g1?_pos=2&_fid=3e69a7c5f&_ss=c
Also, I’m not a seasoned reviewer, so whatever I say is purely my observations and your results may vary.
I’m not the one to usually focus on specifications and numbers. I focus more on how happy I am with the equipment’s sound and that’s it.
Disclaimer: This is a review unit from Linsoul however I retain full editorial control and the opinions expressed here are solely my own. I have not been paid or compensated by Linsoul, Tripowin or any other entity for this review. My assessment is based solely on my personal experience with the product.
I do get to keep the unit after review but that had no influence over the opinions expressed below.
Linsoul Store links (None of them are affiliate links):
Linsoul website: https://www.linsoul.com/
Linsoul Aliexpress Store: https://ddaudio.aliexpress.com/store/2894006
Linsoul USA Amazon Store link: https://www.amazon.com/s?me=A267P2DT104U3C&marketplaceID=ATVPDKIKX0DER
Sources used:
- Google Pixel (Gen 2) Type C to 3.5mm dongle
- iBasso DC07 Pro
- iBasso D16 Taipan
- iBasso DX320
- RME ADI-2 Pro FS R
- Quloos QA390
- Chord Hugo 2 + 2go
7Hz, is already a known name in the audiophile world, hails from China. They've quickly gained a reputation for producing IEMs that offer exceptional value for money, often punching well above their weight class. Personally, I've been thoroughly impressed with their previous releases, especially the Zero, Zero 2, and Timeless – each offering a unique flavor of sonic excellence.
Now, 7Hz is back with the G1, a single dynamic driver IEM that promises to deliver a captivating listening experience at an incredibly accessible price point. Let's dive into the specifics and see if it lives up to the hype.
Box Contents:
- IEMs
- 0.78mm 2-pin Cable (3.5mm terminated) / You also have the option to purchase a cable with Mic.
- 04 pairs of silicone tips (S/2 X M/L)
- Silicone carry case
Specifications:
Impedance : 18Ω
Sound Pressure Level : 107dB/V @ 1kHz
Frequency Range : 10-20,000Hz
THD (Total Harmonic Distortion) : < 0.5% @ 1kHz
Driver Type : 10mm dual-magnetic, dual-cavity dynamic driver
Unboxing Experience:
The unboxing experience is simple but satisfying. The G1s arrive in a compact box containing the IEMs themselves, a selection of silicone ear tips, a 0.78mm 2-pin
cable and a round silicone carry case. While there are no extravagant extras, the presentation is clean and efficient, reflecting the G1's focus on delivering core value.
I love the fact that 7Hz included a carry case at this price. While the silicone case is not going to protect the IEMs from any impact, it does protect them frrom other things in your bag.
Design and Build:
The IEMs themselves sport a sleek, understated design. The black metal shells (I'm assuming aluminium) are ergonomically shaped and feel comfortable in the ear. They look and feel like small pebbles to be honest. The included cable is decent that minimizes tangling and feels durable enough for everyday use. While not as luxurious as some high-end cables, it's perfectly functional and complements the G1's aesthetic.
Wearing Comfort:
The G1s are designed for long listening sessions. The lightweight shells and ergonomic shape ensure a comfortable and secure fit. I was able to wear them for hours on end without any discomfort. A point to note is that that the nozzle length was on the shorter side due to which I had to use tips with longer nozzles. The angle of the nozzle however was well-judged, allowing for a good seal and effective passive noise isolation.
Sound Analysis:
Tonality:
Imagine a warm, inviting living room bathed in the soft glow of a fireplace. That's the kind of warmth the G1s bring to your music. It's a gentle, comforting presence that enhances the listening experience without adding any artificial coloration.
Sub Bass:
The sub-bass plunges into the depths of the music, providing a solid foundation for tracks with a powerful low-end presence. In "Why So Serious?" from the Dark Knight soundtrack, the ominous rumble sends shivers down your spine, while the deep, resonant bassline in "Royals" by Lorde adds a visceral dimension to the track. However, the decay is a touch too quick, preventing the sub-bass from fully blooming and lingering in the air.
Mid-bass:
This is where the G1 truly comes alive. The mid-bass is a masterclass in balance, delivering impact and texture in equal measure. In "Seven Nation Army" by The White Stripes, the iconic bassline hits with a satisfying thump, while the intricate bass work in "Feel Good Inc." by Gorillaz grooves with infectious energy. Each note is defined and articulate, contributing to a rhythmically engaging experience.
Lower Midrange:
Male vocals are enveloped in a warm embrace, adding a sense of intimacy and richness. Leonard Cohen's baritone in "Hallelujah" resonates with emotion and gravitas, while the smooth vocals of Frank Sinatra in "Fly Me to the Moon" are rendered with a velvety smoothness. Female vocals are equally well-served, with a touch of warmth that enhances their presence without sacrificing clarity. However, a slight dip in the lower midrange can sometimes make instruments like cellos and baritone saxophones feel slightly less present in the mix.
Upper Midrange:
This region sparkles with clarity and detail. Vocals, both male and female, are presented with exceptional precision, allowing you to hear every nuance and inflection. In "Hotel California" by the Eagles, the harmonies are beautifully layered, each voice distinct and clear. Instruments like violins and trumpets shine in this region, their timbres rendered with accuracy and vibrancy.
Lower Treble:
The lower treble is where the G1 adds a touch of sparkle and airiness to the music. It's not overly emphasized, but it's present enough to give cymbals a delicate shimmer and hi-hats a crisp attack. Listening to "Little Wing" by Jimi Hendrix, the guitar notes had a beautiful sheen without ever becoming harsh or sibilant. This was particularly noticeable when I paired the G1s with the iBasso DX320, which has a slightly brighter treble presentation.
Upper Treble:
The upper treble, however, is where the G1 shows some restraint. It rolls off gently, which helps to tame sibilance and prevent fatigue during long listening sessions. However, this can also result in a slight loss of air and brilliance in tracks with a lot of high-frequency energy. In "Dreams" by Fleetwood Mac, the shimmering cymbal crashes lacked some of their ethereal quality.
Soundstage:
Imagine yourself in a concert hall, surrounded by musicians. That's the kind of experience the G1s create. The soundstage extends beyond the confines of your head, with a sense of depth and height that adds to the immersion. In "Comfortably Numb" by Pink Floyd, the guitars seem to emanate from different points in space, enveloping you in a sonic tapestry.
Layering and Separation:
Even in the most complex musical passages, the G1s effortlessly separate individual instruments and vocals. In orchestral pieces like Beethoven's Symphony No. 5, the various sections of the orchestra are clearly delineated, allowing you to appreciate the interplay between the different instruments.
Timbre:
Instruments and voices have a natural and realistic quality. The acoustic guitar in "Tears in Heaven" by Eric Clapton resonates with a woody warmth, while the vocals in "Hallelujah" by Jeff Buckley are infused with raw emotion. The G1s capture the essence of each instrument and voice, bringing the music to life.
Detail Retrieval:
While not as resolving as high-end IEMs, the G1s punch well above their weight in terms of detail retrieval. They unveil subtle nuances in the music that might otherwise go unnoticed. In "Clair de Lune" by Debussy, the delicate intricacies of the piano performance are rendered with impressive clarity, allowing you to appreciate the subtle interplay of notes.
Comparisons:
7Hz Salnotes Zero 2 vs 7Hz G1: The Zero 2, another excellent offering from 7Hz, has a brighter sound signature with a more pronounced treble presence. The G1, in comparison, is warmer and smoother, with a more relaxed treble presentation. Both IEMs offer excellent detail retrieval and a spacious soundstage, but the G1 has a slight edge in terms of bass impact and overall coherence.
Kinera Celest Wyvern Black vs 7Hz G1: The Wyvern Black has a more balanced sound signature compared to G1 with a slight emphasis on the midrange. It excels at vocal clarity and instrumental separation. The G1, while also balanced, has a warmer tilt and a more impactful bass response. The Wyvern Black might be a better choice for those who prioritize vocal-centric music, while the G1 offers a more engaging and dynamic listening experience.
Kiwi Ears Cadenza vs 7Hz G1: The Cadenza is known for its energetic and vibrant sound signature, with a V-shaped frequency response that emphasizes the bass and treble. The G1, in comparison, is more balanced and refined, with a smoother treble and a more controlled bass response. The Cadenza might appeal to those who prefer a more exciting and impactful sound, while the G1 offers a more nuanced and mature presentation.
Tripowin x 0DiBi Vivace vs 7Hz G1: The Vivace has a warmer and smoother sound signature than the G1, with a thicker note weight and a more relaxed treble. The G1, in comparison, has a slightly brighter tilt and a more agile presentation. Both IEMs offer excellent value for money, but the G1 has a slight edge in terms of technical performance and overall refinement.
Conclusion:
The 7Hz G1 is a testament to the fact that audiophile-grade sound doesn't have to break the bank. They deliver a captivating listening experience that's rich in detail, dynamics, and musicality. While minor shortcomings exist, the G1's strengths far outweigh its weaknesses, making it a true gem in the budget IEM category. Whether you're a seasoned audiophile or just starting your journey into the world of high-fidelity sound, the 7Hz G1 is a compelling option that deserves your attention. It's a reminder that sonic excellence can be found in the most unexpected places, and that sometimes, the most satisfying discoveries are the ones that defy expectations.
Review of 7HZ G1
Hello, hello! After a long break, 7Hertz has released something new, designed specifically for gamers: 7Hz G1, the first IEMs in their gaming series. This new product was announced in October and quickly went to the market.
For those unfamiliar with 7Hertz, it’s a well-known Chi-Fi company known for producing high-quality products with a distinctive sound signature. Their IEMs often make it to the top charts, reflecting a serious approach to IEM development.
And now back to the new release. 7Hz G1, the debut model in the G series, features a single 10mm dynamic driver with a DLC (Diamond-Like Carbon) diaphragm and two N52 magnets. This same type of driver is used in higher-end models, but 7Hz claim they customized it themselves and I'm curious how they realized that. I’ve previously tested IEMs with DLC diaphragms, and I’ll be sure to share how the sound character has changed, as well as comparing it to more common LCP diaphragms.
7Hz G1 is available in two versions: one with a cable without a microphone, and for an extra $2, you can get a cable with a silicone microphone, which provides crystal-clear communication for both gaming and calls.
As a fan of FPS games and shooters, I’m eager to test them in-game and share my impressions in detail. Let’s get started!
I would like to thank Linsoul audio store and especially Kaitlyn for providing the opportunity to test and review this product.
Disclaimer: My review is my personal, honest opinion about the product. I don't receive any income for conducting reviews and I don't participate in any affiliate programs.
You can purchase the 7HZ G1 from:
- Linsoul audio store: https://www.linsoul.com/products/7hz-g1
- DD-store audio store: https://www.aliexpress.com/item/1005007960586707.html
- 1DD Driver Configuration;
- Impedance: 18Ω;
- Sensitivity: 107dB;
- Frequency response range: 10Hz-20kHz;
- Connector: 0.78mm 2-pin;
- Cable material: Oxygen-free copper twisted cable;
- Price:34.99$.
- IEM itself;
- 2 pin 0.78mm 2 core oxygen-free copper twisted cable,1.2m length;
- 5 sets, 10 pairs of eartips: 1 pre-installed pair + 4 pairs of colored eartips (S / M / M / L);
- Instruction manual;
- Silicone carrying case.
7Hz G1 comes in a compact white box. The front features an illustration of the IEMs and the model name, while the back shows their specifications. Removing the front panel of the box and opening it up, I found a transparent sheet with an inspirational letter from 7Hz and their signature. Behind it are the IEMs themselves and a soft-touch silicone carrying case. Inside the case, there is the cable and a small bag of eartips.
I want to specifically mention the carrying case. I found it particularly appealing because it’s made of soft, pleasant silicone and includes a handle that allows you to attach it anywhere you like.
The 7Hz G1 is made of metal and painted in a matte black color. The design of the shells is strict and minimalist.
The facepanel of the shell features the 7Hz company logo in bronze color.
The back side of the shell has a long nozzle with a rim and a flower-shaped mesh inside, in a brass color. It also features R/L markings, three compensation vents, and one additional compensation vent located close to the nozzle.
On the side edge, there is a 2-pin 0.78mm connector with a rounded design. I appreciate this approach to the IEMs' design - it is concise and minimal without excessive details that could be distracting for gamers or listeners.
During the time that I have been using the IEMs, I have not had any issues with the build quality. All the parts are carefully made and I have not had any complaints about the build.
G1 has a slightly unique shape, but still fit perfectly in the ears. The shells have a smooth, oval shape resembling an egg, without any internal ridges that would provide a tighter fit. Even without these, the 7Hz G1 fits perfectly in the ears and doesn’t tend to fall out. Each shell weighs around 9 grams, but this doesn’t feel heavy or burdensome, even during long listening sessions. I would confidently recommend this set for any usage scenario, whether it’s walking, running, or comfortable listening at home.
The sound isolation is at an average level, I would say this set blocks out 50-70% of external noise. You will still be able to hear some outside sounds, but when the volume is increased, it won’t be too distracting.
As for the cable, it is standard for 7Hz. It is a fairly flexible, long cable, but it is also dense and resistant to damage. Made of oxygen-free copper and coated in PVC, it is colored in a silver shade. One end of the cable features a gold-plated 3.5mm plug, while the middle section includes a splitter with the 7Hz logo on one side and the model name on the reverse. The other end has aggressively shaped ear hooks, designed for a comfortable fit, and a 2-pin 0.78mm connector housed in a plastic casing to protect against damage and bending.
This is the same cable used by 7Hz in their high-end planar model, Timeless, so I consider it a good cable for a budget model that doesn’t require replacement.
The 7Hz G1 comes with pre-installed ear tips, but the package also includes four additional sets of ear tips. These are standard ear tips with a conventional opening to provide a more spacious sound. I believe this choice is exactly what’s needed to reveal the true potential of these earphones.
Overall, the 7Hz G1 package includes five pairs of ear tips: pre-installed ones with a standard opening in size M, as well as additional S, M, M, and L colored tips. I don’t quite understand 7Hz’s idea of including so many similar ear tips, but this approach does ensure that everyone can find a suitable option.
Personally, I decided on the standard, pre-installed ear tips because I wanted to test this set with the included accessories.
I always start testing IEMs with a weaker source and gradually move to a more powerful one. Connecting them to my iPad, I was already satisfied with their sound, but as I progressively increased the power of the sources up to the Qudelix 5K or FiiO KA11, I truly felt how the sound became clearer, more transparent, and the soundstage expanded.
So, I can confidently say that this set expands exponentially when used with a more powerful source.
Well, I am surprised by the sound of G1, because with such driver tuning, sound signature, and presentation characteristics, they should be priced 2-3 times higher. Let me explain in more detail.
(I tested IEM with pre-installed eartips and Qudelix 5k / Fiio KA11)
Let’s start with the bass.
This is a single-driver model with a dynamic driver, and the bass in this model exceeds all expectations, as well as its price point.
○ Sub-bass here is resonant and achieved through a deep, rumbling sound that is well-defined. I enjoy perceiving it as a distinct sound, as I haven't experienced such a noticeable sub-bass in a long time. To me, it feels like an independent sound rather than the initial smudged bass notes blended with the main attack. It's quite fast and decays quickly, but it enriches the primary attack with additional weight.
○ Mid-bass is equally impressive. It is punchy, deep, and powerful. While these aren't strictly basshead IEMs, they come very close, as the bass does not overpower the other frequencies. I appreciate how 7Hz has executed the low-frequency response by giving it an extended attack and a slow decay while placing it slightly in the background. The bass remains well-controlled, providing just the right amount to prevent the listening experience from turning into a muddy mess of low-frequency rumbles. The drum kit's timbre is energetic and adds substantial depth to the sound, giving the music an added weight. The bass guitar is driving, and MIDI instruments in EDM, house, and dance music sound harmonious.
I suspect that the midrange in these IEMs was designed for a complete and accurate sound reproduction in gaming, but the mids also sound excellent in music.
○ The lower mids, much like the bass, are simply super. The sound of guitars and pianos is conveyed with impressive clarity, very cleanly, without any excessive rumbling bass that could be irritating. The sound of saxophones and clarinets is also delivered with crystal-clear authenticity. Once again, I am particularly pleased with the instrument representation here, which is truly commendable. Overall, the lower mids are an excellent complement to the primary bass region, enhancing and enriching it effectively.
○ The middle segment also impressed me with its accurate delivery. The timbre of the guitar is rendered with a full-bodied sound, while the piano keys come across as melodic and natural. The violin sounds bright but not fatiguing to the ear.
○ As for vocals, they have an airy and fairly transparent quality. This isn’t the best option for vocal listening experience, as the vocals lack a velvety texture, tonal shifts, richness, and body. I am a fan of male vocals and listen to a wide variety of music, from metal to opera, but I find male vocals here a bit underwhelming. This doesn’t mean that their reproduction is inaccurate; it’s just that 7Hz’s design wasn’t focused on vocal delivery. When listening to Sinatra, Lennon, Mercury, or Jackson, I didn’t feel the tonal depth I have felt with other IEMs. However, for $35, the vocal performance is still quite respectable.
○ I enjoyed the female vocals a bit more, as they come with a touch of sincerity and tonal variety. The upper mids are also airy and fairly bright. I particularly liked the high-pitched female vocals, finding them engaging for my listening preferences. Similarly, higher-frequency instruments are conveyed authentically without being overly harsh or fatiguing.
○ The treble on 7Hz G1 is quite respectable. For the budget segment, I found the tonal rendering of vocals to be adequate, and the instruments sound excellent in the high-frequency range. The treble is slightly bright and airy, which does result in a slight loss of structural coherence.
However, overall, the sound of the flute and piano is melodic, the cymbals have a sparkling timbre rather than an overly sharp one, and the high-frequency vocals are pleasant and free from sibilance.
Separating, sound stage
The soundstage here is quite spacious, as the IEMs were designed for gamers. The stage is wide and tall. I'm very pleased with the analytical and separated sound, which can be experienced like a LEGO set, assembling it piece by piece. I like that each instrument and vocal is placed in its specific spot, without overlapping, and accurately conveying distance and directionality.
I can confidently compare these with the Simgot EA500LM, which also have a separated sound, but cost twice as much.
Gaming impression
As an avid gamer, I was primarily interested in testing them in shooters, and I can say they performed excellently. I can easily pinpoint the direction of footsteps or gunshots, even from a long distance. In CS2 and Valorant, these IEMs handle active firefights with ease, without sound overlap, and with excellent sound separation.
In battle royale games such as PUBG, there were no issues with detecting the direction or range of gunshots and footsteps.
In single-player games, I feel fully immersed in the atmosphere and completely absorbed by the gameplay.
I don't find any competitors among full-size headphones. This set will definitely outperform most gaming headsets. Among IEMs in this class, I would place them on the same level as the Simgot EW300 / EA500LM or EM6L, which are more expensive.
7Hz G1 vs Simgot EA500LM:
Since this set surpasses expectations, my first comparison will be with the Simgot EA500LM.
Both models are made of metal, have a similar design and shape, and are equipped with dynamic drivers, but with different diaphragms. Simgot offers interchangeable nozzles, making them more versatile and suitable for a wider range of listeners.
As for the sound, they are quite similar. The Simgot is more melodic and has a better midrange, especially in terms of vocals. The 7Hz G1 is slightly better at reproducing low frequencies and offers the same soundstage and separation as the Simgot. However, I personally prefer the high-frequency reproduction of the Simgot.
Overall, these are two similar products, but the 7Hz is priced at half the cost of the Simgot.
7Hz G1 vs Simgot EW300:
Next comparison is with the recent successor of the Simgot EA500LM — the Simgot EW300.
Both are metal constructions, but I personally find the Simgot a bit more comfortable. The Simgot also offers interchangeable nozzles.
When it comes to sound, here we have two different sound signatures. The Simgot is a tribrid, excelling across all frequency ranges, delivering high-quality sound. But let's break it down. The bass on the 7Hz is noticeably better: deeper, more separated, and more dynamic. The single dynamic driver in the 7Hz handles bass much better. At the same time, the midrange and high frequencies of the Simgot are far superior — their mix of drivers allows for a unique sound where all frequencies harmonize beautifully. The Simgot is much more melodic and smooth, while the 7Hz is more airy.
The soundstage and separation on the 7Hz G1 is much larger and more spacious than the Simgot EW300.
7Hz G1 vs Kinera Celest IgniteX Beast:
The last comparison is with a model in a similar price range: Celest IgniteX Beast.
Both models are budget-friendly: the Beast is made from resin, while the 7Hz G1 is made from metal. The Beast has a more flashy design, while the 7Hz is sleek and minimalist. As for the fit, I liked both models, but the IgniteX Beast fits tighter, offering better sound isolation.
When it comes to sound, we’re looking at different sound signatures and tuning. The IgniteX Beast is a 1DD + 1BA model, and it delivers a pleasant bass that is as good as the 7Hz G1. The midrange on the Beast is unique and a bit unusual due to the armature driver’s characteristic "flavor," while the highs on the Beast stand out more, thanks to the improved armature driver delivering clear, accurate high frequencies.
However, the separation and soundstage on the 7Hz G1 are far superior, making them much better suited for gaming. The Beast, on the other hand, sounds constricted and muddy in games.
Well, much has been said earlier, but the 7Hz G1 can definitely be considered the best IEMs in terms of price-to-performance ratio and the best in their price range, both for gaming and music listening. For just $35, you get excellent IEMs for gamers, which are also well-suited for both beginner listeners and experienced audiophiles. These IEMs have definitely exceeded themselves and my expectations.
It's simply an amazing set - they’re like a dark horse.
I highly recommend everyone to give these IEMs a try - you’ll definitely be satisfied.
Attachments
7Hz G1
10mm Dynamic Driver In-Ear Monitor
Redcarmoose Labs November 12th, 2024
- Flagship 10mm Dynamic Driver
- DLC Diaphragm with N52 Magnets
- 0.78mm 2-Pin Connector
- High-Quality Oxygen-Free Copper Twisted Cable
- Priced at $34.99 or $36.99 with a microphone
There is another amazing thing about 7Hz and their history here at Head-Fi. The original Zero review has over 75,000 clicks making it the most popular IEM in Head-Fi history.
Part of this popularity is due to Crinacle’s tune which, while basically midrange centered, joined forces with this simple full-range dynamic driver’s technicalities to create incredibly big 3D imaging. So it was the combo of 7Hz making the IEM a new and different shape (like the Timeless) and fortifying it with goodness as far as tune and technicalities. At this point in reading here you may question why so much introduction? You may wonder why I’m going into so much script about these other (older) IEMs? It is because there is a noticeable set of attitudes and skills being presented to the market place by 7Hz. History repeats itself, and sure 7Hz went and reintroduced the Zero with a more streetwise tuning in the Zero 2. While some complained about the lack of bass with the Zero 1, 7Hz went with Crinacle’s tune once more offering vocals and bass. And today I could easily compare the 7Hz Zero and Zero 2 against the G1, but I don’t want to. Sure I could simply say in one sentence that the G1 is better, and really in so many ways this is the Zero 3. Look at the price history here. Zero 1 $25.99, the 7Hz G1 $34.99. For just $9.00 more you get a solid metal construction, and a totally new 10mm Dynamic Driver, that by the way rocks! When you read about my side-by-sides it will start to sink-in where we really are.
Side-by-sides:
With all the side-by-sides I used the SIMGOT AUDIO Modular LC7 cable along with the included L size 7Hz ear-tips and the Sony WM1A with MrWalkman’s firmware installed. Questions about the choice of cable here. While there is nothing at all wrong with the included cable as really the included cable gets you in the door as far as sound quality. It was just that the LC7 allowed me to access 4.4mm balanced which in turn uses a separate amplifier inside the WM1A in contrast to the smaller capacitors and separate PCB (printed circuit board) in which the 3.5mm amp is built onto. Plus probably the LC7 gives the SIMGOT AUDIO IEMs a slight advantage due to the fact that the LC7 by nature has a smoother than other aftermarket cables treble and slightly toned down upper midrange along with extra lower midrange heft. Yet all and all the cable does not really color the sound and coincidentally also goes fine with the 7Hz G1. So to describe the cable in a sentence it is slightly extra smooth in the upper areas, and boosted in the lower midrange, but provides a window into 4.4mm amplifier ability and leaves the signal uncolored.
Left to right: 7Hz G1, Tripowin Piccolo
The Tripowin Piccolo:
While first noted, the Piccolo is slightly harder to drive. Yet the Piccolo fits remarkably well and sounds better than I remember. Here the G1 bass sculpting is noted on an improved level, as part of the larger G1 stage. And talking stage presence, those improvements are in every direction, top to bottom, forward to back and side to side. Plus maybe a given, but the imaging is also separated better with realistic placement and distance between constituents. If you already own the Piccolo you may be off-set on the possibility of the two IEMs generating the same tune, and they do, except the stage, and bass technicality mixed with the different instrument and vocal textures are new and different. The Piccolo vocals almost sound grainy in comparison to the G1, the G1 vocals take that detail offered-up and sculpt more defined smoother and more realistic vocals.
I’m on repeat:
I may sound like I’m repeating myself because I am, but the G1 holds this finite instrument and vocal itemization simply due to increased detail over the Piccolo. The Piccolo stage is simply not offering as many avenues of space for these images of musical information to flow into or exist. We find the bass notes more noticeable, more detailed, deeper and wider with how the G1 carries itself. Yet the main gig about all this is it is brought to you as a smoother/fluid idea of playback, yet inside of that found smoothness is also more contrast generated. All and all this makes for a dramatically more emotionally meaningful 7Hz G1 experience.
Side-by-side level two:
Sure it is a given that the Piccolo would be chosen as a battle partner. And while I knew that it would be a good comparison, I was also not going to use it today. Only fate had different ideas as to my testing schedule. I was asked to (test it) to see how much better, and if so, in what way would the G1 rule over the Piccolo.
The Piccolo is actually not that old, only 1.5 years old, and while being priced right around the G1 at $35.00 is sported with a 11mm LCP diaphragm. Yet as luck would have it the Piccolo is offered now at only $9.00 which creates havoc in the availability at times. And sure both the Piccolo and the G1 live in the very same part of town. But the G1 stage offers wider pastures as well as extra detail levels, with vocal tone being more realistic.
Continued testing:
What if we went creative with our test subjects? We are now going to throw in everything (to a point) to kind-of make the G1 challenged in the most unorthodox of ways. Why? If the G1 is so really good………why not put it up against other more expensive IEM players here? And that my friends is what is about to take place. What always happens is two aspects of IEM understanding. Yep, I mean I have not fully done this test yet, except I know from previous experience what will happen here.
1) Some aspects of the challenging IEMs will be better
2) Some aspects of the challenging IEMs will be not as good
3) The results will end-up highlighting what the G1 ultimately is in the end
So in many ways we win no matter what. Look, from memory I already know a little about how this will play-out, though just like fighting fish, results happen when you put these IEMs together into the same tank. Meaning IEM memory is only so pure, that it really takes side-by-sides to access truth in the end.
Left to right:
Left to right:
SIMGOT AUDIO EW300: 1DD, 1PZT, 1Planar Driver Hybrid at $62.99 to $71.99 (depending on version)
Kiwi ears Singolo: 1 11mm DD at $79.00
SIMGOT AUDIO SuperMix4: 1 DD+1 BA+1 Planar +1 PZT Hybrid at $149:00
7Hz G1: 1 10mm DD at $34:99
SIMGOT AUDIO EW300:
The EW300 uses a 10mm ceramic dynamic driver for both bass and midrange, including vocals, then including a PZT driver and a Planar driver for twin treble duties, what could go wrong? Here we are basically at a slightly lower output volume with the EW300. There is the noticeability of more drivers causing the Hybrid effect, which is a style of forced separation due to 3 different drivers. Yet there is a polish here and a sophistication at hand. To tell you the truth I was expecting more off timbre before I started. But to get to business here, while the vocals on the EW300 are nice, they don’t hold as much forward positioning after adjusting to equal volume levels. Though what has me newly smitten is the gorgeous stage, that yes, when we finally get to the upper treble part of the music hearing EW300 string instruments sound just slightly off timbre, yet that is the price you pay for the PZT separation and technical Planar treble separation. Now here is the thing, you may guess this being SIMGOT that that area is bright, when here it is not, actually a relatively safe tune, it is just the G1 is doing those treble areas with better timbre. Though when a few back and forth try-outs are done we hear the G1 stage is of a more cohesive and still large attitude. I mean I’m suppose to like Hybrids best as those are my thing. Yet here we are presented with smooth and fluid magically G1 forward female vocals. And while sure those strings are more connected at the hip to the rest of the stage, there is purer access to timbre. Bass is hard to compare, but probably more bass......even lower midrange happenings with the EW300. But this G4 bass is also just as effective to bring the lows to you, it is just less and somehow holding a slightly smaller stage. What comes out the other end is a seemingly tight yet tailored G1 bass that ends up faster and uncluttered. I could go on and on, but I think you have the picture here? Though I will say there is a cleanness and directness that pulls on your emotion making the G1 probably my choice regardless of price, yet that is not to say there is a thing wrong with the EW300.
Kiwi ears Singolo:
I absolutely love my test order here. Why? Because we got a DD, then a Hybrid, then another DD. SO it helps as it alternates ideas of driver methodology. First off the Singolo is more difficult to drive, probably being a bigger DD? LOL It’s only 1mm bigger, so whatever it is there is a noticeable way the G1 is easier to drive. The whole thing I’m keying in here is the fast response, the transients which make the G1 driver sound faster and more responsive. While the tune is close to the same in many ways, it is the theme of this entire review that it is the technicalities held with-in this G1 10mm DD and maybe the metal casework, that add to a style of clarity. To where there is just better separation, also the bass in the Singolo is slower, almost lumbering and not holding the clear definition we have with the G1. Still though the SIngolo timbre is super nice, and I would need to do another side-by-side to check it against the G1?
Back:
Yes, there is added bass presence with the Singolo. Yet this presence is not without its consequences of an added bass and lower midrange. Where the G1 is pushing a more mid-forward presence and inside of those mids come with them stark contrasts and vividness. Where with the Singolo we had a sleepy style of vocal positioning, where now inside of the G1 listening room is a much farther pushed midrange holding increased detail………….yet clear and clean…….and best of all 3D!
3D:
The G1 is faster, cleaner and by far more my style of DD? What else can I say to that? OH, and timbre, probably close to the same, only the timbre is of more risk with the G1 as it is out into your face, like if someone at a party handed you a stiff-drink………like “hello”…..yet the outcome is better than expected with the 7Hz G1, and I would probably say timbre is equal.
Here is the SIMGOT LC7 and Sony WM1A with SuperMix4.
SIMGOT AUDIO SuperMix4:
So I was pretty hard on the Singolo, yet I meant every word. Now the test is of the $149.00 SuperMix4. And it is like someone just arrived with more goodies, right. A single DD against all kinds of shenanigans. Hello a DD, a BA, a PZT and a Planar too! What are they doing to us? Again of course the SuperMix4 is harder to drive, but so what. Now we are basking in a style of replay that really starts to challenge the G1. Why? Well for starters the stage is wonderful, and while I’m not sure if it is that much bigger, except remember that forwardness and vividness to the G1? There is an added separation that just comes with all those SIMGOT drivers going off. Big, is the word I have for the stage. Plus there are extra filigrees of extra treble creations that are invented by these extra treble noise-makers. There is an unarguable stance in the stage here, creating a bigger, more filled-out and floaty creation of events. While sure if I try and take each instrument apart for the tone it holds, the genesis of where they came from starts to show. That means the BA, the PZT and the micro-Planar start to all three emit a slightly off timbre, only we are fully sedated and willing to partake of this fantasy here of the SuperMix4. Even the bass that while not totally the most detailed is sequestered into its very own area of the stage. And sure this is fun. Truly the two IEMs are opposites, where the purity of the G1 is pure, yet on entertainment basis alone the SuperMix4 makes those points. And to reiterate here the low-end of the SuperMix4 is cleaner than the Singolo (more pulled) better separated and added to with all this sonic icing on the cake. The SuperMix4 is broader than what the EW300 is doing, holding even more room for imaging to take place, though inside of that area of our hearing that floaty occurrences of detail are composed of slightly off shimmering washes, that are not bad to hear, but not exactly real either.
Music tests:
So here I am choosing two files that I have known for years. Actually the first song "Episode" is and can be troublesome for IEMs being they mixed the upper instruments both distorted by rack effect units and purposely introduced them in an extended treble mix in relation to the rest of the song. Though here we are fine and better than fine as the G1 does its job. Meaning the imaging and instrumentation is actually heard as fuzzy, because it is fuzzy silly. Plus the G1 is offering great separation of this event……..more to follow in the actual song listen. Then the "Superman v Batman OST" is fully knocking down doors with the G1 ability, but really in the opposite of ways, getting all that bass that the prior IEM comparisons may have had you question with the G1, but more than that when we get the G1 a stage to replay, the G1 goes crazy to actualize the stage as a reality! Get ready here comes the music reviews!
Theatre of Tragedy
Assembly (Remastered)
Episode
44.1kHz - 24bit
I have to laugh here. Why? Well you know when you are scared of something, like you don’t know what it is under that log in the yard, and out jumps a furry little kitten? Now that little rascal still has claws, but they are used for play. And that is kind of how the upper extremes are provided for here. We are shown truly what this song is, and in ways more realistically that the SuperMix4. The timbre is airy still and while bright, the goods are provided here as far as being able to hear into the real vibe of what they were after in making this recording. Stuff like how all these small fuzzy guitar tricks and cymbal treats sound. The fact that when they throw in that slightly off tempo snare drum at 01:33, the drum is really an accent that helps to add groove to this number. At 01:44 when the fuzzy rhythm bar chords come in and we are just smitten to hear the tone. Mind you this is a difficult song to get right. Some IEMs try to go overboard and will draw this guitar into shimmering white light, which we have a hard time digesting. Though here all is well. Sure part of it may be from the SIMGOT AUDIO LC7 relaxed cable tone, but still even with different cables, there is a statement here about just how the G1 does treble…………simply fuzzy fun guitar that somehow holds the character they were really going for when they made the song. This is also the style of song that if you were in a room (with speakers) with a fellow audiophile and simply put the song on, without saying a word, their faces would light-up as here their ears are finding a new tone to chew on. But more than that, they would look at you and smile, giving you the style of communication that goes beyond words to show admiration for your choice of music. There are probably other IEMs that do Liv Kristine Espenæs vocals slightly more forward and showcasing her energies, yet that is not exactly what the G1 is about with this song. You can hear the vocals fine, they simply are not showcased like some IEMs would do. What we are into here is super fast transients and great separation (especially of the midrange) which keeps this song alive, where the drums and bass are also slightly diminished but in no possible way neutral. What the total effect here is a fast and clean idea of playback into a medium large stage, but my favorite aspect has to be the pace provided here.
Meaning upon first impressions I thought the G1 was great but I had to wait a full 7 days before doing these music tests, only because I wanted (I was hoping) for the after-effects of burn-in and I was rewarded in spades.
So really it is the pace with electronic pop music like this song which will brighten your day!
Timestamps pertain only to the digital file, not the video.
Hans Zimmer & Junkie XL
Superman v Batman OST
New Rules
96kHz - 24bit
Look, this song is one of my best test songs for multiple reasons. And there was probably no place where this review came together than right here with this file. Why? Simply the G1 performed. When I say performed there are small noticeable conditions of sound replay that get noted here and are judged. The first is the bass drop of all bass drops. I have used this song to test cables and IEMs for years, At 01:37 there is a bass drop that is both detailed and has a style of character. This drop shows both how good the IEM is at performing it, but also what details are offered up into the window of perception. That’s right, how clear can the bass be? Sure I have heard instances of BA bass do a style of replay that truly did this recording justice, but at the same time I have heard full-range DD attempt this and nowhere near to they get it right as the 7Hz G1 does. And once again it is the quick transition pass which may be the real reason that this IEM comes-off a technical marvel? Marvel! Sorry!
Timestamps pertain only to the digital file, not the video.
Ok to finish this up, probably the most realistic thing today was how the SuperMix4 showed me how the stage of the G1 is nice, but it is not the biggest. And keying into such ideas now I can say the G1 has a medium large stage, but of course I have heard this song bigger. This style of OST music thrives off stage placement. Hans Zimmer is using the stage as his painting canvas. Yet it is inside of the G1 stage that violins and the kettle drums (timpani) take hold to make this experience genuine. Sure it is all of only $34.99, but technology is gaining on us here at Head-Fi, laying the foundation for better and better gear for less money year after year. And remember how I keep talking about pace, well there is a component inside the value of pace. That audiophile component is called transients………this whole song is a statement of those transients because it is all about how carefully and quickly they occur. Small energies of small infinitely little and quick sounds are being introduced and pulled away much like a BA. These fast pulse rates mean the make-up of this driver has the Diamond Like Carbon and N52 magnets in place to maximize such start and stop ability in the time domain. When that is combined with correct timbre there is very little (if anything) to stop the G1 from succeeding.
Packaging:
Cable:
Build:
Here we have a slimmer-fit style of shape than what is regularly put out. What I’m trying to say is the G1 holds very little thickness for the large sound it puts out. As such it would be considered a perfect out and about IEM, blocking outside sound with the metal shell. Yet at 9 grams (sitting close) the G1 is not heavy or super low weight, but perfect. Probably the greatest gift is that once seated, the 7Hz G1 never ever moves away from the zone it was placed into……..and I like that. While studying the pictures you can see three vents, plus a forth vent and how the gold nozzles have screens placed back to avoid dislodge. The 2Pin holes are angled as normal for 7Hz, this is their way of making cable guides fall to the inside of the ear when draped atop the ear-lobe. And when you mix the shape and weight along with fitment it makes the perfect sports IEM. Only two pieces plus the nozzle, in fact while the nozzle is on the shorter side I could use any ear-tip I desired. The other thing 7Hz has done is maybe employed a new shell designer in-house, as this IEM from the surface is one of the least showy designs I have seen from 7Hz. I mean sure I understand the marketing ploy to make an IEM which stands out, the Timeless was like that, the Dioko was like that, and surely the Zero was along those lines. Yet when it comes down to this shape it is almost like a pebble stone, soft, no real hard edges………and I like that, no I love that! This IEM has an understated function ability as the primary design goal.
Conclusion:
Conclusion, you want a conclusion? Haven’t I said enough already? Just order the 7Hertz G1 and be done with it!
Disclaimer:
Often I get approached with questions about why I would call an under $200.00 IEM a Flagship? Number one, 7Hz calls the G4 a Flagship, and from what I can tell that's what it is…………. the top 7Hz DD Flagship of the line. Sure other manufactures offer more expensive TOTL models (even single DDs) and go Topsy Turvy with endless extras inside the box opening experience. And sure I get how folks are super motivated to get useful extras, as many of those extras are mandatory. There is this Hong Kong manufacturer now that offers a new wrist watch inside every IEM storage box! When does it end? The deal here is that we are gifted with only the main thing of importance; the Dynamic Driver! Yet for your money you are also getting a Driver Enclosure that is metal instead of plastic like the older Zero series. Possibly this metal enclosure goes to stifle some of the extra unwanted reverberations leading to the clarity and focus of sonic intent?
$34.99 or $36.99 with a microphone
https://www.linsoul.com/products/7hz-g1
Disclaimer:
I would like to thank Kaitlyn Wu from Linsoul for the love and the 7Hz G1 review sample.
Disclaimer:
These are one person's ideas and concepts, your results may vary.
Disclaimer:
The 7Hz G1 has been had burn-in for 168 hours.
Linsoul website: https://www.linsoul.com/
Linsoul Aliexpress Store: https://ddaudio.aliexpress.com/store/2894006
Linsoul USA Amazon Store link: https://www.amazon.com/s?i=merchant-items&me=A267P2DT104U3C
Equipment Used:
Sony WM1Z Walkman DAP MrWalkman Firmware 4.4mm and 3.5mm
Sony WM1A Walkman DAP MrWalkman Firmware 4.4mm and 3.5mm
Samsung Phone 3.5mm
HiBy R3 II 3.5mm/4.4mm output and 3.1 USB Type-C output
GO bar Dongle 4.4mm/3.5mm
claud W
My G1 is cooking on my breakin system as I post this.
Redcarmoose
@claud W,
Yes, lol they are fun OTB, but I felt one of the G1’s best traits pulled through with the burn. The incredibly great PACE! Cheers!
Yes, lol they are fun OTB, but I felt one of the G1’s best traits pulled through with the burn. The incredibly great PACE! Cheers!
"Transcending the usual Harman sidegrade hoards, the G1's calling card is its imaging and layering, and is well-suited for our gaming brethren."
Great review!