

Disclaimer: I bought this at my own expense. (SILVER GRAPHENE VERSION, the gold version has a titanium coating.)
Price: Paid around 140 usd
Specifications:
Weight: 293 g
Wire: Oxygen-free Copper
Cable Length: 1.35 m
Plug Type: 3.5 mm Gold Plated
Speaker Impedance: 32 Ω
Sensitivity: 104 dB
Frequency Response Range: 20-40,000 Hz
Maximum Power: 50 mW
Implementation of Standards: Q / WMSX 003-2016

Accessories:
3.5mm -> 6.35mm adapter
Carry case

Cable: Even excluding the poor measurements (0.91 ohm), it is a pretty bad cable although it has a mic and track controls. It is very thin after the divider (metal) and before that it uses Kevlar. Which in my experience with their older iems always died. I would get another cable for it.


Build: Build is a mix of metal and plastic, feels and looks very premium. The headband padding isn’t very thick and can be a problem for comfort (not for me though). The cups can rotate a bit as well as tilt up/down a bit. The headband adjustment system is pretty good. The pads themselves are on the smaller side (average softness), which means that depending on your ear size, it is either on-ear (large ears) or more of a mix between over/on-ear (smaller ears like mine). You can also fold them when you aren’t using it.
Fit: As mentioned above, depending on your ear size, it will either be on-ear or a hybrid between over/on-ear (your ears are covered by the padding and not visible, but might touch the pads on the inside). If you got bigger ears (specifically the antihelix part) there is a chance that the driver (piezo) can touch it, but it is easily prevented by swapping the L/R sides (and change the cable so the sound isn’t reversed)
(More info on that here: https://www.head-fi.org/threads/1more-h1707-triple-driver-over-ear.849824/page-33#post-14302201 )
Comfort: Not that good due to the clamp being on the stronger side along with the hybrid over/on-ear fit. Gets warm pretty fast as well.
Isolation: Pretty good
Setup: Schiit Asgard 3 (low-gain, volume around 10 o´clock), stock pads, cable A6 4.4mm
Lows: Elevated sub and mid-bass, although sub-bass focused by far and it is very tight, fast and well textured. You get a fun but still clean bass. If anything, the bass can be too tight/fast for certain genres like Hip-Hop. The passive bass reflector is making this sound very unique from all other headphone bass I have heard so far.
Mid-bass: Metallica – fight fire with fire (01:11-01:52), clean due to the speed and tightness, while quantity is good. The (02:55-03:01) section with the chopper is hearable and detailed.
Hiroyuki Sawano – Pretenders (01:18-01:47), very fast, tight and textured as well as fun due to the quantity.
Sub-bass: Djuro – Drop that bass (01:15-01:30), extension is excellent and it rumbles a lot (the passive bass reflector is doing a great job here). Punch quantity is good and it is very tight, fast and textured.
Will Sparks – Sick like that (03:08-03:22), good quantity as well as well textured and still very clean due to the speed and tightness.
Mids: While the tonality (for my library), detail and clarity are very good, but it’s not a headphone for vocal lovers due to them being recessed. Although male vocals are more recessed than female vocals, so the vocal balancing isn’t that good.
Female-vocals: Hiroyuki Sawano – OldToday (01:25-01:52), vocal and instrument tonality are great but timbre is more on the exotic side (unnatural) due to the piezo timbre and vocals are recessed. Detail and clarity are great though.
Yuki Hayashi – MightU (01:58-02:55), instrument and vocal tonality lack some brightness as well as unnatural due to the piezo timbre.
Evanescence – Bring me to life (01:18-01:35), not shouty at all.
Hiroyuki Sawano – Crescent (02:07-02:26), a little bit shouty.
Male-vocals: Hiroyuki Sawano – Pretenders (00:57-01:17), vocal and instrument tonality are great but timbre is unnatural and also got recessed vocals.
Hiroyuki Sawano – Scapegoat (00:57-01:17), vocal tonality lacks a bit of warmth, recessed and unnatural timbre. Instrument tonality is good but still got unnatural timbre.
Treble: Linkin Park – Shadow of the Day (03:24-03:42), electric guitars aren’t sharp at all but still tonally accurate. Timbre is unnatural though.
Deuce – America (03:03-03:16), while it isn’t shouty, the imaging is struggling here and it does sound a bit chaotic.
Hiroyuki Sawano – Lose (string version) (01:22-01:59), Cello tonality, timbre, texture and detail are very good. Violin detail and treble-extension are very good but tonality lacks some brightness while timbre isn’t natural.
Hiroyuki Sawano &Z (02:18-02:57), tonality and detail are very good but timbre is unnatural.
Soundstage: holographic and both deep and wide.
Tonality: V-shaped while the tonality is pretty balanced between warmth/brightness. Timbre is unnatural/exotic due to the piezo tweeter and also makes the overall coherency incoherent.
Details: Very detailed both macro and micro details thanks to the piezo driver.
Instrument Separation: separation and imaging are good.
Music:
The sub-bass is elevated a lot on this track but it is still very clean due to how tight and fast it is. Very fun on it.
Both of these tracks have that clean but elevated and fun bass, while the treble is airy. Trance music works great for this headphone.
Hiroyuki Sawano tracks also works great and they are a big part of my library.
Songs that highlight the Headphone:
Good genres: Trance, EDM, OST, Rock/metal, Hiroyuki Sawano, Linkin Park
Bad genres: Acoustic/vocal music, Hip-hop
Comparisons:
Headphone: Sony MDR-1AM2, stock pads, stock cable 4.4mm
Bass: Djuro – Drop that bass (01:15-01:30), extends lower and rumbles more on the H1707. Punch quantity is also higher on the H1707 as well as tighter, faster and more textured. More tonally accurate on the H1707.
Hiroyuki Sawano – Pretenders (01:18-01:47), more mid-bass quantity on the 1AM2 but tighter, faster and more textured on the H1707.
Metallica – fight fire with fire (01:11-01:52), bloated on the 1AM2 due to the looser, slower and higher quantity bass while texture is a lot better on the H1707.
Mids: Hiroyuki Sawano – OldToday (01:25-01:52), vocals are more recessed on the H1707 but has better details. Vocal tonality and timbre are a lot better on the 1AM2. Instrument tonality is somewhat similar but timbre is a lot better on the 1AM2.
Evanescence – Bring me to life (01:18-01:35), more relaxing and less fatiguing on the H1707.
Hiroyuki Sawano – Scapegoat (00:57-01:17), a lot more recessed vocals on the H1707, timbre and tonality are a lot better on the 1AM2.
Treble: Linkin Park – Shadow of the Day (03:24-03:42), more relaxing and less fatiguing on the H1707.
Hiroyuki Sawano – Lose (string version) (01:22-01:59), Cello tonality, texture and detail are better on the H1707 while timbre is better on the 1AM2. Violin tonality is similar but more detailed, textured and better treble-extension on the H1707 while timbre is a lot better on the 1AM2.
Hiroyuki Sawano &Z (02:18-02:57), better tonality and timbre on the 1AM2 while it is cleaner on the H1707.
Technicalities: Shiro Sagisu – Hundred years war (02:24-02:57), soundstage is wider and a lot deeper on the H1707 and is holographic. Details, imaging and instrument separation are better on the H1707. Timbre is a lot more natural on the 1AM2 and is coherent.
Overall: Both of them are bassy headphones, but quite different in their presentation. While the 1AM2 is the more natural one due to the timbre it is more mid-bass focused rather than the sub-bass focused H1707 and more exotic sounding. If you want a (mid) bassy but without recessed vocals and a more natural sound, the 1AM2 is better. But otherwise, the H1707 is performing in another league.
Headphone: SIVGA Phoenix, stock pads, stock cable 3.5mm
Bass: Djuro – Drop that bass (01:15-01:30), extends and rumbles a lot more on the H1707. Punch quantity is also a lot higher as well as tighter, faster and more textured on the H1707. More tonally accurate on the H1707.
Hiroyuki Sawano – Pretenders (01:18-01:47), more quantity, tighter, faster and more textured on the H1707.
Metallica – fight fire with fire (01:11-01:52), more quantity on the H1707 and cleaner on it because of the faster and tighter bass.
Mids: Hiroyuki Sawano – OldToday (01:25-01:52), a lot more forward vocals on the Phoenix as well as better tonality and timbre. Instrument tonality and timbre are a lot better on the Phoenix. Detail is similar but cleaner on the Phoenix.
Evanescence – Bring me to life (01:18-01:35), a little bit shoutier on the Phoenix.
Hiroyuki Sawano – Scapegoat (00:57-01:17), a lot better instrument/vocal tonality and timbre on the Phoenix.
Treble: Linkin Park – Shadow of the Day (03:24-03:42), electric guitars are similar but better timbre on the Phoenix.
Hiroyuki Sawano – Lose (string version) (01:22-01:59), Cello tonality, texture and detail are better on the H1707 but timbre is a bit better on the Phoenix. Violin tonality, texture, detail and treble-extension are better on the H1707 but a lot better timbre on the Phoenix.
Hiroyuki Sawano &Z (02:18-02:57), tonality is a bit better on the H1707 as well as cleaner but better timbre on the Phoenix.
Technicalities: Shiro Sagisu – Hundred years war (02:24-02:57), soundstage is wider on the Phoenix but similar depth. Timbre, instrument separation and imaging are better on the Phoenix. Macro-details are better on the Phoenix but better micro-details on the H1707.
Overall: The Phoenix is better if you want a more natural sounding and better for vocals. While the H1707 is more fun due to the bass.
IEM: LZ A6 (pink filter), Final Audio Type E tips LL, cable A5 4.4mm
Bass: Djuro – Drop that bass (01:15-01:30), extends a lot lower on the A6 but similar rumble. Punch quantity is a bit higher on the A6 and also tighter and more textured on it, speed is similar though.
Hiroyuki Sawano – Pretenders (01:18-01:47), similar quantity but tighter and a bit more textured on the A6.
Metallica – fight fire with fire (01:11-01:52), cleaner due to the faster and tighter bass on the A6 as well as more detailed.
Mids: Hiroyuki Sawano – OldToday (01:25-01:52), very similar vocal tonality (and recessed vocals) and both have a similar piezo timbre to it but the A6 has a lot more micro details and more macro details. Instrument tonality is also very similar but a lot cleaner and more detailed on the A6.
Evanescence – Bring me to life (01:18-01:35), more relaxing and fatigue free on the H1707.
Hiroyuki Sawano – Scapegoat (00:57-01:17), more recessed male vocals on the H1707 but similar tonality and timbre. Instrument tonality is a bit better on the H1707 (due to it being warmer) but a lot cleaner and detailed on the A6.
Treble: Linkin Park – Shadow of the Day (03:24-03:42), electric guitars aren’t sharp on them but it is brighter on the A6 and is therefore more fatiguing.
Hiroyuki Sawano – Lose (string version) (01:22-01:59), Cello tonality and timbre are better on the H1707 but more textured and detailed on the A6. Violin tonality, treble-extension, texture and detail are a lot better on the A6 but timbre is a bit better on the H1707 (not as much piezo timbre in it).
Hiroyuki Sawano &Z (02:18-02:57), tonality and timbre are a bit better on the H1707 but a lot cleaner and detailed on the A6.
Technicalities: Shiro Sagisu – Hundred years war (02:24-02:57), soundstage is a bit wider on the H1707 but deeper and more holographic on the A6 (pretty minor difference though). Detail (especially micro-details), imaging and instrument separation are a lot better on the A6. Timbre is a bit better on the H1707 (less piezo timbre) but both are very similar here.
Overall: Both of them are very similar, to the point where you can say that they are the counterparts of each other in their respective transducer form. Although the A6 is the more technical and the one that embraces the piezo timbre a lot more than the H1707, if you like one of them, it is likely you will like the other.
Conclusion: The H1707 is a V-shaped, very unique and fun sounding headphone that is very different from other headphones. This does mean that it isn’t recommended to someone as their first headphone and also not to the ones that want a natural (timbre) sound. But otherwise, it is highly recommended. Thanks for reading.
Cable source: https://www.head-fi.org/threads/resistance-of-cables-pics-comments-and-links.907998/
Reference/test songs: