[REVIEW] Aurisonics ASG-2 & 2.5 (with many comparisons)
May 19, 2013 at 4:54 PM Thread Starter Post #1 of 7,012
Jul 22, 2011
Update: Aurisonics ASG-2.5 Revision
(main ASG-2 review below)
After more than a year since its release, the ASG-2 has been officially updated to a new revision. Dale and co. listened to customer feedback about the original, and have tweaked it accordingly. 
From what I understand, these are the new additions/changes:
1) A brand new driver. The old 15mm is replaced by a 14.2mm alternative.
2) The bassport has been changed to increase both mid-bass and sub-bass equally, without the bloat of the previous version.
3) The treble spike has been smoothed for a smoother response up top.
4) Sexy new colors (I picked red).
There are a few things I could say, but I figure what most care about is simply how different the sound is. Let's explore this.
The setup will be X5 to Tralucent T1. Stock cables on both. Bass port set to minimum mostly.
To test the difference between the ASG-2 and 2.5, I tried something I've never done before. Using the stock cable, I attached the ASG-2 left earpiece, and the ASG-2.5 right earpiece so I could get a raw estimation of the differences.
  1. Firstly, the ASG-2 is dramatically more sensitive and easier to drive. A result of the different driver, perhaps?
  2. The ASG-2.5 has a loooot less bass than the ASG-2, with bassports closed on both. Both mid and sub-bass.
  3. This will make A/B'ing interesting.
  4. I actually found myself wishing for more bass at times...from an ASG series. Hmm.
  5. I actually forgot how remarkable the ASG-2 is for being able to deliver such a sheer amount of impact and bass without ever impacting the midrange or treble.
At this point, I started listening with both earpieces to get more concrete thoughts. I'll do my best to volume match closely.
  1. With bass ports closed, the ASG-2.5 sounds a fair bit dryer than its predecessor. I fired up Amy Winehouse's "Valerie" from the Back to Black album...the version where she apologizes to Charlie Murphy for having too much fun... the one with the heavy bass line...At first, the 2.5 sounds a bit boring because of the reduced emphasis in the low end. Still by the time the middle of the song rolls around, I have a bass induced headache from the raw impact of the ASG-2.
  2. I switched over to Ben Howard's "Only Love", and truly the only difference I could find were in the quantity of bass, and the overall sensitivity. So, I decided to play with the passport settings on the ASG-2.5 to see if Unity's harsh but accurate BloatPortTM moniker was still valid.
  3. I decided to skip the small talk and open the port to half blast...instant bass headache. The ports are no less effective, I see. I retreated to closed, then opened slightly. The boost still isn't as clean as it could be, but there's a bit more flexibility since the 2.5's stock bass is less than that of the original.
Overall, I'd say the differences are this. The ASG-2.5 sounds more...restrained than its predecessor. The ASG-2's bass is rather visceral in nature. The raw attack and punch, even with the ports closed, is awe inspiring. I think I prefer the older version for more bass centric genres, simply because the 2.5 can't mimic the 2's bass signature. The 2 retains much of the 2.5's tightness, while having pure ferocity when the song calls for it.
The fight scene below essentially sums up the difference between the bass presentation of the ASG-2 and ASG-2.5. The 2 is represented by Bane, and the 2.5 is Batman. Pay special attention starting at 2:40

However there are times, many times, when the ASG-2's bass was just too much for a song, similar to how Bane's mask was his downfall. The 2.5 has no such problem, as it has been overall tamed. Consider the ASG-2 the bad boy that women love when they are younger because he is so exciting and keeps them on their toes. As they get older though, the warm security of the suited gentleman becomes more and more appealing. This is the crux of the matter here.
You'll notice I spent the entire review primarily discussing the bass. It is the most evident change when comparing the two side by side, and it is no small difference. As for the bassport, it's still not going to deliver that clean boost that we so hoped for. Perhaps the size of the driver, plus the quantity of air the port lets in contribute to the sheer mass of bass that one gets when the port is used.
All in all, it's still more or less the Aurisonics house sound. Amazing vocals, smooth treble, and a very textured sound that lays cues out in front of you like you were standing in the presence of the performers. The 2.5 will be better for those who thought the ASG-2 could simply do with less bass and slightly more present upper mids.
Warrior1975 need not apply 


Quick note about the bass port settings on the ASG series.

If you look closely at the dial on the bass port, you'll notice that one side has a white marking. It's not scraped off paint, but rather it's the indication for where the setting is. 
*point that white mark towards the first line and the port will be closed. Point it to the circle and the port will be open full blast.*

[size=10pt]The ASG-2 is Aurisonics' second (official) foray into the world of iems. The guys over at Aurisonics cater primarily to the music professional crowd, and their products are generally tuned for stage use. Their original ASG-1 was a perfect example of this, with its ability to present vocals in a way that made it seem as if the notes were rolling off your own tongue. The ASG-1's various revisions were good in their own right, but they always seemed to lack something...treble. As I noted in my review, the treble was very refined and timbre was spot on, but there was hardly any of it there. I, along with a few other owners, took to EQ to raise the levels. With that done, the ASG-1.2 quickly became my favorite IEM. You can read more in-depth here: http://www.head-fi.org/t/604547/review-aurisonics-asg-1-diamond-in-the-rough-rev-1-2-update-added[/size]
[size=10pt]Not long after the release of the ASG-1, Dale, CEO of Aurisonics, listened to his customer base. He began working on "the prototype". In our emails, we discussed how he was going about getting better treble out of the drivers without skewing the Aurisonics house sound. At one point in the development of the ASG-2, Dale considered using a dual dynamic driver setup to achieve the desired sound...the original 15mm full range dynamic, plus a smaller 7mm "tweeter" that compliments the highs. See, Dale had an aversion to balanced armature drivers of any sort. In his mind, they all lacked the realism that dynamics could present. After months of tweaking, he finally stumbled upon a balanced armature that he fell in love with. It definitely wasn't your average TWFK, but a different beast altogether. Thus, the final design of the AS-2 series began to take shape. [/size]
[size=10pt]The ASG-2 employs a newly designed 15mm full range dynamic driver, along with Dale's customized dual balanced armatures acting as treble tweeters to complement the dynamic driver. One thing of note here is that this design avoids crossovers, removing unnecessary complications. These BAs are tuned in a way that organically blends with the sound. They simply never sound out of place, and avoid the usual timbre issues that some BAs can exhibit. [/size]
[size=10pt]The ASG-2 ships in a fantastic otterbox case, along with several pairs of tips, a warranty card, the bass port adjustment tool (if you have the bass port edition), and a wax remover.[/size]
[size=10pt]I have to compliment Aurisonics on their tip selection. The material is of very good quality, and I doubt anyone will have trouble finding a pair that will seal. Another thing to note is that the otterbox cases no longer require divine intervention to open. I had to go on a 12 week weight lifting regimen in order to build up the strength to open and close the ASG-1 box without issue.[/size]
[size=10pt]One MAJOR thing that should be mentioned is the slight revision in the shell of the iem that can make a work of a difference. Owners of the ASG-1 will remember this little bump...[/size]

[size=10pt]That little thing was the bane of small ears everywhere. Well, I'm happy to announce that this is almost completely gone. The ASG-2 (and ASG-1.3) shells now fit like a glove for most ears, without that painful extrusion. Build Quality is also great. There are few iems that feel more solid than the ASG-2. I imagine this set lasting or years to come.[/size]
[size=10pt]Now, on to the....[/size]
[size=10pt]Test tracks:[/size]
[size=10pt]Rises in the East - Kayla scintilla[/size]
[size=10pt]Hide and Seek - Imogen Heap[/size]
[size=10pt]Circle of Life - The Lion King [/size]
[size=10pt]Toxicity - System of a Down[/size]
[size=10pt]Flapper Girl - The Lumineers[/size]
[size=10pt]Better Off Alone - Alice Deejay[/size]
[size=10pt]Holland Road - Mumford and Sons[/size]
[size=10pt]Oh Marcello - Regina Spektor[/size]
[size=10pt]Sources: Clip+, iPhone 4, FPE desktop amp, and Sabre DAC.[/size]
[size=10pt]The ASG-2 is (almost) exactly what I wanted from a ASG-1 upgrade. The major upgrade comes where it was needed most...the treble. Whereas the ASG-1.2 was overly dark, the ASG-2 improves on this significantly by simply boosting the treble levels to audible levels. As simple as this sounds, the improvement this brings has to be heard to be believed. The entire sound signature gets a facelift. Everything is more dynamic, mids are more life-like, and the bass becomes (even) more textured. Make no mistake though, this is still the Aurisonics house sound. The midrange is the star of the show here, and it's a damn good one too...more on that later. Luckily, Aurisonics didn't go overboard with the treble. While it is very present and rich, it's never glaring unless in an especially harsh recording. It is always there, but never obtrusive, and is the perfect compliment to the mids and bass.[/size]
[size=10pt]Another significant difference from the ASG-1 is the bass emphasis. Whereas the ASG-1.2 was a sub-bass monster, the ASG-2 leans more toward mid-bass impact. With the bass port closed the low end is tight, very impactful, and exquisitely textured. It lends warmth to the sound without ever encroaching on the mids. However, the bass can take on a life of its own as you open the bass port. It can range from "In da club", all the way to "SOMEONE PLEASE, FOR THE LOVE OF GOD, STOP THAT MADMAN!!" levels of impact and bloom. I personally keep the port closed so as to avoid waking that beast from its slumber. The mid-bass is almost too much for me, even with the port closed. I like bass, but I prefer it to remain below 60 hz as much as possible. It will definitely be too much for some.[/size]
[size=10pt]The midrange is simply where it's at. It's forward, articulate, refined, and oh so resolving. It's the second best mid-range I've heard, snapping on the heels of the Sennheiser IE800, an iem twice the (base) ASG-2's price. It's actually more dynamic than the IE800, but lacks that air of effortlessness that the IE800's midrange gives off. However, I don't think performers will be looking for effortlessness when they're belting their lungs out on stage. One thing that amazes me about the mids is how they never seem to be obstructed, no matter how much the bass snarls. Vocals always dance above the mix. Vocal separation here is just amazing. I used Imogen Heap's Hide and Seek to test this. She sings the track in several different harmonies, which are then blended together. I could zero in on any particular harmony I wanted with the ASG-2, and the vocal timbre was spot-on. Same goes for Regina Spektor's voice.[/size]
[size=10pt]Soundstage size is very much above average, and is only prevented from being "massive" by the forward vocals and upper bass. The imaging is simply spectacular though, and sound cues can be located anywhere in the sound field. Instrument separation is good throughout the range, but kicks into high gear in the midrange. It's not a hyper-realistic kind of sound, but there's no muddying of instruments here.[/size]
[size=10pt]Quick story, I went to a seafood bar in my town on Friday after picking up the ASG-2. There were some live performers there, so I let the lead vocalist (coming from UE11 Pros) borrow my pair for a set or two. Just as the band struck up the first song, he stumbled over the first few words in the song with the most priceless look on his face. When he finally returned the ASG-2, he begged me for Aurisoncs' phone number. I just thought that was a testament to the sound that Dale has created.[/size]
[size=10pt]Altogether, the ASG-2 is oh so nearly my ideal signature. I only wish the bass energy could be moved further down into the sub-bass. Not that it negatively affects the sound, but the impact is a bit more than my ideal. The impact is fine at lower volumes, but can be slightly problematic at higher volumes. Then again, this is coming from someone who prefers the GR07 MKII over the GR07 Bass Edition. As a sort of post script, I should also mention how great the ASG-2 is with classical music genres. Operas, Concertos, and Chamber Music all sound sublime. I've been getting more into classical the deeper I go in my didactic studies, and I'm finding the ASG-2 to be the perfect companion.[/size]
[size=10pt]Thanks for reading.[/size]

Other Users' Cataloged Impressions
UnityIsPower's updated impressions and comparisons:
* http://www.head-fi.org/t/664613/review-aurisonics-asg-2-plus-sd3-1plus2-tg334-senn-ie800-flat-4-sui-rdb-2v1/3240#post_9750399 *
[size=10pt]DannyBai (other iems in the thread, not ASG-2):[/size]
[size=10pt]Gintaras' Ramblings [/size]
[size=10pt] [/size][size=10pt]:[/size]
May 19, 2013 at 4:55 PM Post #2 of 7,012
Jul 22, 2011
Tralucent Audio Ref 1 vs Aurisonics ASG-2.5
I've chosen a few songs that I feel will be good tests for both IEMs. I'll post the song, with impressions under each track. Note that the youtube versions linked are below the quality of the actual files used.
The ASG-2.5 is equipped with its stock cable and medium+ SureSeal tips, while the REF1 is equipped with the Tralucent Silver&Gold cable and large Ortofon tips. The ASG-2.5's bass port is only veeerryyy slightly open to let the driver breathe a bit.
The upstream components used are the Fiio X5 as a DAC, connected to the Tralucent T1 amplifier.
*Notes: My main ASG-2 has been out on loan for months, so I haven't listened to it in a while. This is good, since I've become de-adjusted to the Aurisonics house sound, and I'll come into the review with fresh ears for both IEMs.
Feist - Limit to Your Love

- Starting with the Ref, the very first thing that strikes me is the Ref's very wide stage. It's really quite impressive. Feist's voice is dead center, with the instruments panning out far to the left and right. However, further listening points to a slight lack of depth to the soundstage, and a greater dearth of forward projection. Feist's voice is obviously boosted above the mix, especially in the upper mids. I'm not really a fanof the tonality it gives to her voice and piano. That, combined with the less than 3D stage take away from the experience.
- Switching to the ASG-2.5, it almost sounds bass light in comparison. The 2.5's impact is tighter though, and more defined. The 2.5's soundstage is not as wide as the Ref, but it provides a more immersive experience by improving on soundstage depth and height. Furthermore, Feist's voice seems more "controlled" for lack of a better word. Her voice blends in more with the mix, while still retaining emphasis. The Ref, in comparison, seems to have coherency issues in that regard.
Drake - The Language (Explicit)
This is primarily a test for bass performance, which includes dynamics, texture, and control. Additionally, it's a test for how well an IEM can retain clarity in the mids and highs despite the fact that the song calls for very generous amounts of bass.

- Quantity wise, the Ref 1 has more raw impact and rumble than the ASG-2.5, but that's where the advantages end. The main bass theme is a few short impacts, with interspersing sub-bass quakes. Drakes voice is meant to dance above the mix, and the hi-hats dance over it all. The Ref 1 represents the impact and rumble well, but there just isn't that sense of nimbleness in the low end. The ASG-2.5 has seriously concentrated punch, and instantly transitions into the sub-bass portions with awesome texture. The 2.5's overall tonality is somewhat dry, so I imagine that helps a lot with revealing texture.
Another thing that's more of a flaw of the Ref 1 than it is a ASG-2.5 advantage is again the Ref 1's upper mid spike. It proves to be quite distracting in this song, as it takes Drake's voice and replaces it with a nasal-sounding surrogate. The ASG-2.5 sounds far more accurate in this regard, as it seems to naturally emphasize vocals without any unnatural spikes.
Versailles - Silent Knight
My absolute favorite song to test for driver speeeeeedddddd.
The track starts off relatively slowly, but s**t starts getting real at 3:01. Here, we begin to test for smearing of note attack. A slower driver will make the shredding of a guitar come off more like flutes, and will smear the raw impact of the rapid drum strikes.
*note that the youtube video isn't of particularly high quality, so I advise you to find a copy of the song if you can. It's a useful test track to have, and it sounds awesome.

- The ASG-2.5 cuts through this song like a knife through butter, which is better than the previous revision was able to do. No problems here. Interestingly enough, the Ref 1 seems to more or less keep up as well, doing especially well with the speed of the double kickdrums. This seems at odds with how the bass performed with previous test tracks. I'm not sure how to explain this, other than guessing that the speed problems have more to do with the amount of bass it's been tuned to, rather than a general lack of speed an texture in the isobaric driver used. This song doesn't call for a LOT of bass, which would aid in assisting my theory.
Siebzehnter Auftritt (Papageno, Pamina, Monostatos) Monostatos: Ha, hab ich euch noch erwischt - Die Zauberflote (Rene Jacobs, Mozart).
Rene Jacobs' operas tend to be the most well produced and conducted that these ears have heard. Everything from the vocalists to the recording is impeccable. They provide great tests for dynamics, space, imaging, timbre and vocal accuracy.

- Again, the Ref 1 is impressively wide here, but the soundstage suffers a bit from GR07 syndrome, where it is takes on a more oblong shape instead of being completely in nature.
Exhibit A:

In this piece, it is as if all the cues are packed into the extremes of the left and right blobs, messing with imaging overall. I really don't understand, since (I believe) the the housing and BA drivers are carried over from the very 3D 1plus2.
Additionally, when listening to this piece, I feel like vocal pitch and timbre are off somewhat. It almost seems like a side effect of the boosted upper mids, where the spike creates a relative dip that compromises lower midrange harmonics. 
In comparison, the ASG-2.5 has none of these miscues. Vocal clarity and transparency is better on the the ASG-2.5. Still, it is not without its flaws...I hear the ASG-2.5 as being slightly boosted in the lower mids, creating a sort of resonance there if you don't have a perfect seal. Overall though, I prefer the ASG-2.5 with this track for the improved imaging, timbre, and other audiophile words.
Hozier - Work Song
One of my ultimate tracks for ambiance. Vocals, atmosphere, soundstage, etc. It's all here. I love this song...enjoy :)

- When it comes to vocals and atmosphere, I've yet to hear better than the ASG-2, and the 2.5 surely continues in this tradition. In this track, the backing vocals reach through Cthulu-like depths of blackness to surround you. Hozier's voice then cuts through the depths to reach and grab you. The electric guitar and tambourine materialize out of the shadows, complimenting yet standing out from the mix. Essentially, this song is an experience with the ASG-2.5
Switching to the Ref 1 instantly removes the sense of immersion that the ASG-2.5 provides. The most notable difference is the relative  lack of black space, and the contrast between cues it provides. Where the ASG-2.5 presents the song like a well-mastered "audiophile" track, the Ref 1 sounds almost brick-walled in comparison. A lot of this comes from that damned upper mid spike, but the rest comes from the oblong shaped soundstage that just doesn't do justice to the track. Hozier's vocals also aren't quite done justice here. 
I've really tried my best to transmit my thoughts from my ears to the keyboard without alteration. There are times when the Ref sounds simply great, but the overall tuning and soundstage are a but of a let down. The ASG-2.5 sounds more refined, more spacious due to its more developed soundstage, and overall more immersive to me. Clarity and transparency also seem to be better on the 2.5 due to the lack of dips and spikes that the Ref 1 has.
Thanks for reading.

TOTL 3-Driver Hybrid Wars
AKG K3003 - Aurisonics ASG-2 - Sony XBA-H3
These three IEMs represent very different price points, with differing target audiences, and different value propositions. The K3003 stands as one of the very first hybrid design iems to grace the market, coming in for an (at the time) eye-watering price for a universal IEM. As with most things on Head-Fi, it nearly immediately created camps with opposing views on its performance and value. Some say it's the best IEM they've ever heard, while some call it a turd. Naturally, I'm excited to finally hear it for myself.
Featured next is the Sony XBA-H3, the latest flagship effort from one of the biggest names in the business. Like with the K3003, there have been aggressive supporters and detractors of this iem. One this is for certain though...it's certainly a far cry in tonality from the company's previous flasghip, the EX1000.
In this thread is a pretty solid the ASG-2, so I won't say too much more here.
All iems are quite impressive in the hand. They all carry the impression that some thought went into their designs, as all are very solidly built and are aesthetically pleasing to the eye. No small shop iem aesthetics here. I have to hand it to the K3003 for being the most minimalist, elegant, and modern design. The "i" version does have a reported weak point though, as the remote has been prone to failure on a few sets. Just something to watch out for. Speaking of remotes, the XBA-H3 ships with two cables, one with a remote and another without. I'll be using the non-remote version for this write-up. All IEMs are pretty comfortable, but I'm not sure I'd wear the Frankenstein-ish XBA-H3 out in public.
I honestly don't think I could conjure a better image of the K3003's sound signature than what Soundfreaq did here:
The K3003 is in the dead of winter. All the greenery is gone, and replaced by trunks and branches of trees everywhere. Fresh, pure snow has been falling lightly for days, and a complete blanket of snow covers the ground and tree branches. In your cabin, you have a large fireplace burning wood you chopped earlier that afternoon. The fire warms your large cabin to a nice cozy and comfortable temperature as you're wrapped up in a cashmere blanket in the loveseat, soaking in the warmth of the hearth. Your cabin is filled with windows. Floor-to-ceiling plate glass windows on all sides of the cabin, and a large glass observation skylight takes up a giant space in your roof. At night, the purity of the snow gleaming in the moonlight, while content and warm, moves the soul. The dark trees, cast long, dark shadows against the brilliant white snow. White/black, cold/warmth, the emotions are heightened peacefully, filled with juxtaposition. A few bright planets and some twinkling stars that peer through, remind you of the size of the universe itself. Life is precious, life is sweet, life is pure, and it's the most beautiful creation this universe can offer. 


Beautiful. But for the more left-brained among us, I'll try to translate.
The sound signature of the K3003 is reminiscent of a long, straight stretch of country road on an evening that's not quite chilly enough for you to have to wear a jacket. It's nearly completely flat to my ears from end to end of the frequency range. Nothing sounds out of place, nothing seems to be making more effort than it should. It has Etymotic-like clarity and transparency without that annoying spike in the upper midrange, along with detail for days. The midrange carries the same effortless quality I adored in the Sennheiser IE800, but it isn't as inviting as that of the IE800. The bass is exquisitely tight and controlled all the way down. There's certainly nothing lacking in the upper or sub-bass, it's just so, so tight. The treble has this refined quality that lacks any obvious peaks or spikes (to my ears). It's certainly not a powdery type treble though, as it can transmit the brassy quality of cymbals with ease.
My impressions of the K3003 are overwhelmingly positive. My only reservation with this phone comes from the soundstage. Depth and width are great, but it can' portray the height I'm used to listening to. Thus, the center channel is slightly compressed. However, this contributes to an very interesting effect. The overall great soundstage depth combined with the centerstage's qualities creates forward projection that I haven't heard from any other iem. Certain cues seem to project forward into eternity. Listening to "Mayla" by Edward Sharpe and the Magnetic Zeros was quite the experience.
Overall, there's truly no way I can fault the K3003's sound. It's just so clean and effortless while being immensely capable. If it were a lady, it would look something like this Southern Belle:

She can appear disinterested sometimes, but she just likes to love in her own way.
XBA-H3 (Stock, without taped vent)
My initial impressions of the H3 were overwhelmingly positive. It came to me with a tape blocking the vents, with pinholes in the middle of the vent to let the driver breathe a little (tape mod). Since the first audition, I haven't been able to really listen for the last few days due to lectures. I've removed the pieces of tape for the purposes of this write-up.
The sound signature of the H3 starts from the bottom up with large, deep, and powerful bass. Extension is faultless down to the lowest of the lows. Then it rolls up to the mid-bass, which is where the problem is for me. It's larger in quantity than the sub-bass, and isn't very tight. It can make the overall sound cloudy at times. It isn't all bad though, as it lends to a very black, sometimes menacing type bass that isn't very far off from the imagery of Lovecraft's C'thulu. 
The midrange is positioned slightly behind the bass, and can sometimes get caught in the wake of the mid-bass. Otherwise, the midrange is very refined and tonally accurate to my ears. No strange pitch variations to be found. The treble is equally smooth and detailed. It certainly does not lack sparkle or extension when required by the song. The armatures used are world class to my ears, only bottlenecked by the tuning of the dynamic. A small piece of tape is all that's  needed to mostly clear up the sound though.
Soundstage wise, the H3 is slightly wider than it is deep, so it doesn't quite have a surround your head type of sound nor very much forward projection.
Overall I'd say the H3 has a very consumer oriented tuning, a far cry from the very open, romantic, and audiophile tuned EX1000. With the tape in place though, I'd say it's a worthy successor of the EX1000, in that it's more refined and has a more friendly signature without losing too much of the EX1000's open-air stadium presentation.
Comparisons to ASG-2 (bass port closed)
Test tracks
Cats and Dogs - The Head and the Heart
Lips of an Angel - Hinder
Djobi Djoba - Gipsy Kings
Mayla - Edward Sharpe and the Magnetic Zeros
Hallelujah - Leonard Cohen
Hallelujah - Jeff Buckley
Lakehouse - Of Monsters and Men
Floret Silva Nobilis - Carmina Burana (Jochum 1968)
K3003 and ASG-2
These two iems have very different philosophies. To help me draw the image, imagine these two iems were used as the inspiration for houses. The K3003, the clean and modern smart home...perfectly designed to meet every need and want. Nothing is lacking at all. The ASG-2 is an old antebellum mansion, modified to have electricity and modern appliances. The design shows its age and a few boards need to be replaced, but the rooms are grand in size and stepping into the house instantly transports you to another time.


Like the housing designs, the respective sound signatures are quite different. The K3003's cooler, more distant presentation is countered by the taller, more dynamic presentation of the ASG-2. The ASG-2 is overall warmer than the K3003 as well, but not by much. Detail levels in the midrange are very similar to my ears, with the ASG-2 being able to convey more "sweetness" than the K3K. However, the K3K is technically superior in the treble and bass. The K3K reduces the peak the ASG-2 has in the treble, while flattening and tightening the bass. I also hear the K3K reach into the sub-bass with more authority. It has a flatter FR that lends to greater note transparency than the ASG-2. In return, the ASG-2 carries better dynamics and has a more live feel than the K3K. 
Visually, the K3003 is recording studio, technically perfect Miles Davis:

While the ASG-2 is this slightly imperfect, but mesmerizing Miles Davis:

ASG-2 and XBA-H3
The first track I used to compare these two was Floret Silva Nobilis. It's a test for clarity, detail, bass tightness, dynamic range, black space, and soundstage qualities.
This is my first time A/B'ing the ASG-2 and H3, so the next few paragraphs may come off as a stream off incoherent thought.
1) The H3's soundstage is wider, the G2' is taller
2) the ASG-2 is more refined, details are better fleshed out. Timbre is also better on the ASG-2, the H3 has this slightly plastic timbre.
3) The H3 requires about 20% more power than the G2.
4) The G2 is clearer and more resolving of microdetails. 
5) The H3 has better sub-bass extension, but that is not always obvious because the looser mid-bass can obscure it at times.
6) The G2 has a more mid-forward presentation. 
7) The H3's treble tweeter is marvelous. It's more resolving up there in some fine details and gives more weight to the treble.
Next track: Djobi Djoba - Gipsy Kings
1) Guitars are more realistic on the G2.
2) There's that plastic timbre on the H3 again.
3) Vocals on the G2 are better.
4) G2 mid-bass is more controlled.
5) G2 has greater black space due to the greater soundstage height.
6) ASG-2 + H3's tweeter = goodbye head-fi. 
7) Actually, SR-009 = goodbye head-fi.
Lips of an Angel - Hinder
1) See above.
2) I really like this song.
Overall, I wouldn't say the differences are large enough for me to put the XBA-H3 a whole tier below the ASG-2. No, I'd say they're on the same playing field in the superbowl, but the ASG-2 is up by a couple of touchdowns. For the price the H3 is a nooo brraaaiineerrr. A zombie would stop chasing you to buy a pair of these.
Ergonomics wise, it's the ASG-2 10 times out of 10. The H3 is comfy when inserted, but I'll be damned if I had to do it multiple times at work or in between lectures. It's large, and the memory wire can be an obstacle to proper insertion.
None. Make your own 

Bonus: XBA-H3 ASG -2 and K3003 vs Earsonics S-EM6
I really dislike the S-EM6. It sounds to me like someone covered the nozzle with thick pieces of wool. Pure, farm fresh sheep wool. 
The bass is bloated, loose, and lacks definition. The treble seems to have studied at the school of Houdini, because it's very proficient at pulling disappearing acts. The only saving grace of the entire IEM is that is has very nice creamy lower mids. The upper mids are stifled though.
I know I'm being harsh, but this iem should not cost anything close to $1000. The XBA-H3 is a great deal more technically proficient than than the S-EM6, carrying more detail, less bloat in the bass, and and a much larger soundstage, all for a third of the price. The S-EM6 makes my blood boil every time I listen to it and A/B it to other iems.
If you want a more technically proficient S-EM6, look into the InEar SD3 or the Cardas Ear Mirrors. Both of them cost less than half the S-EM6's asking price.

Noble 6 
Test Tracks
Rivers and Roads - The Head and the Heart
Slow and Steady - Of Monsters and Men
Ho Hey - The Lumineers
Blood on the Leaves - Kanye West
A/B'in these two, I think the biggest tonal differences come from the respective presentations of the ASG-2 and Noble 6. G2 has more distant presentation, with a soundstage that has greater height and width than the N6. It also has a drier presentation, plus an upper treble peak that lends a touch more sparkle than that of the N6. In comparison, the N6 has more intimate stage that puts you closer to the music. It also has a more lush sound that can make the ASG-2 sound slightly sterile at times. For instance, Slow and Steady is a song that is abundant with tiny details here and there, especially in the first minute. It's bustling with activity in a way that gives me the imagery of a busy rainforest. The ASG-2 presents that song very well, and all the details are there, but the taller presentation feels a bit like one is floating above the forest floor. Vocals are taller as well and meet you as you levitate, but the tiny details are left flat on the floor. The N6 brings you back to the hard earth. The sound is a good deal less spacious, but now the scene is teeming with life. The smaller details are fuller, and more fleshed out.
As you can imagine though, the opposite can be true for other songs that thrive on the ASG-2's spaciousness. Ho Hey is one of them. The treble peak, which can be be sometimes bothersome, wakes up cymbals and adds a bit more life to vocals. Rivers and Roads is another track that showcases the differences between the two.
Aside from those differences, I find most else to be a wash more or less. The bass on the G2 reaches deeper, is tighter, and can present a bit more texture. In response, the N6's treble is more refined and lacks the G2's potentially sibilant 9khz/10khz peak.
I honestly could be happy with either one.


Etymotic ER4S
What has been said about the ER4S that hasn't already been said. This old veteran has been around for almost as long as I've been alive, and it's still going very strong. 
My first real encounter with the Etymotic range came through the HF5, which I found fantastic, despite having to slightly cut away at the 2 kHz region for my tastes. I've wanted to hear the ER4S since. Luckily I now have the chance, thanks to a good friend.
Build, fit, etc.
The ER4S, along with all Etymotic iems, has a very utilitarian feel to the build. Nothing is lacking, and nothing feels like a frivolous addition. The ER4S also has removable cables, but Etymotic recommends not tampering with them, rather that the customer send the sets in for cable replacement.
As for fit, this is an interesting one. Etymotic's bread and butter comes from its single balanced armature phones, and the ER4S is more or less considered the grand-daddy of them all. As such, one needs an extremely (some say absurdly) deep fit to get the best out of them. Achieving this fit is, I imagine, not unlike losing one's anal virginity...that's how uncomfortable it is. Still, the result is pretty worth it.
If you achieve the reference plane fit with the ER4S, you're rewarded with excellent clarity and micro details throughout the range, with the exception of the lower bass region. Despite the less than stellar sub-bass, the mid-bass is extremely tight and flat. It's almost like looking down a long highway on a summer's day. Speed and texture are also remarkable, as the bass can get pretty grungy when the song calls for it. I personally find the ER4S' bass to be the best performing part of its sound signature.
Overall, the ER4S' signature is more or less linear, up until a huge spike in the upper mid range. This spike is most likely the main reason for the ER4S' love it or hate it reputation:

Vs. the ASG-2
It's taken me so long to do the comparison because I've been giving myself a washout period where I didn't listen to the ASG-2. The two are drastically different signature wise, so I figured I'd take a week and not listen to either so I could have a fresh set of ears.
Music & Gear
iPod Classic 6th Gen ->  Tralucent T1 -> ER4S/ASG-2
My Head is an Animal - Of Monsters and Men
Random Access Memories - Daft Punk
Split the Atom - Noisia
Nothing Was the Same - Drake
The first track I A/B'ed the two on was Could This Be by Noisia. The ER4S' linearity in the bass was truly awesome to behold. It was like looking at the individual notes as they "passed by" so to speak. The soundstage is nothing special, the highs are perfect, and the mids don't get in the way here. I switch to the ASG-2 (remember this is my first time hearing them in a week), and it's immediately so much more full and 3D than the ER4S. The bass retains almost every bit of texture, but has some extra kick to it. This adds up to a more involving experience for me. I hear a slight treble spike in the ASG-2 (around 9 or 10k) that isn't bothersome.
I'm still feeling pretty lethargic after finals week, so here's the gist of the differences:
1) Greater treble extension for the ER4S
2) ASG-2 has more sparkle due to 10k spike
3) ER4S is slightly faster 
4) ASG-2's mid-bass can be bloated compared to the ER4S
5) ASG-2's soundstage has much greater height and depth. I also hear better spatial imaging with the ASG-2.
6) One defining difference comes in how they each present the upper mids. They are polar opposites in this fashion, with the ER4S being quite boosted, and the ASG-2 being recessed in this           area.
Hope this helps!

Fischer Amps FA-4E XB
I have to admit, I thought this was a hybrid when I first put them in my ears. It was only after a song or two that I held them up to the light and noticed a distinct lack of a dynamic driver in the shell. Safe to say, I'm rather impressed by the sound that they've extracted from this guy. More on that later.
The FA-4E XB is a quad BA setup from another German company called Fischer Amps, and it's one of the best BA-based IEMs I've heard. Physically, I find them quite comfortable. The shell is small and ergonomic and, though it vacuum seals, the uber-shallow fit allows for great comfort with tips like the Ortofons. Isolation is also very good.
Without looking at the FR graph, I'd describe the overall sound of the FA-4 as relatively flat, with boosted sub-bass and upper mids, though the upper mid-bass boost isn't quite at Etymotic levels. I'm also finding the treble to be pretty extended and present. Details are emphasized, but the overall signature doesn't come off as cold to me due to the sub-bass that balances everything out nicely. I do notice a hard edge/some tizz to the treble though.
The bass deserves its own paragraph because of how proficient it is. It exhibits the most extended sub-bass I've heard from any BA based iem short of the Final Audio Design FI-BA-SS. Texture is great, the bass itself is very dynamic and organic. I listened to Drake's Started From The Bottom and Kings of Leon's I Want You as a sort of test for how the bass "moves". I love the way the bass just rises and falls organically with the music, never seeming to strain. The quantity also never seems to be out of place. I don't think I've been impressed by bass like this in a while. Add in the boosted upper mids, and you retain clarity no matter how much bass is in the song. One thing to note is that the bass only shows its capability when it is asked for. There is no bleed or bloat whatsoever.
Another key thing that I've noticed in the FA-4 is just how sharp the imaging is, and how individual cues are placed very distinctly I have a track to test this on later.
This is very technically impressive phone. The FR is below this:

Vs the ASG-2.
Test tracks:
1) The Language - Drake. Chosen as a test for bass tactility and dynamics, especially in the sub-bass. Warning, salty language.

Firstly, I feel the bass of theFA-4 reaching slightly deeper than the ASG-2. To put it how the sensation of the bass feels, I feel the ASG-2's rumble stop slightly below my jaw line, while I feel the FA-4's rumble reach down into my throat with slightly more authority. The G2's sounds fuller though, with greater height. But the bass sounds slightly top-heavy compared to the FA-4. I mentioned earlier how the FA-4 can have some glare, and it's apparent here. Drake's voice is sounds more etched on the FA-4, and the synth riff can sound harsh at slightly higher volumes. I love the clarity and extension of the FA-4 here, and I love the G2's height and smoothness also. I find both equally enjoyable.
2) Neon Cathedral - Macklemore. To test for spaciousness and instrument realism.
Both iems sound quite realistic with instruments and vocals. The differences come in their respective presentation styles. The FA-4 reminds me of the taste of dry gin, while the ASG-2 is like a swig of Bailey's. Both good, but both going about getting you drunk in different ways. I specifically listened between 2:42 and 3:22 for how each iem would handle that passage. The FA-4 can come off as slightly dry, with Macklemore's voice having a slight edge to it. The G2 slightly reduces that edge, allowing for some headroom. The second half of the passage incorporates some ambiance, and both do a great job. However, I feel like the G2's warmer touch and slightly more expansive stage make the experience more immersive. I prefer the G2 here.
3) 24th Street Blues - Lee Ritenour. Imaging test, realism with cymbals, etc.

I've played the drums for years, and it's probably my favorite overall instrument. The way the drumset is mixed in this track puts you in the drummer's chair, and you can sort of visualize yourself playing. The FA-4's shorter decay and more present treble really help with the image. While I find that the G2 places the cues properly as well, it doesn't do it with as much aplomb as the FA-4. The differences in presentation are also apparent here. The G2's lusher sound really make trumpets and cymbals more seductive, but the FA-4 gives the brass instruments and snare more snap and "followability" (if that makes any sense. Again, I find both equally enjoyable here.

As you can tell, I really like the FA-4E XB. IMO, it easily stakes its claim to the upper tier realm. I only wish I had the Etymotic ER4S to see how they match up technically. What I do have here though is the FitEar F111! 

F111 vs FA-4E (this one's for you, gnarlsagan)

Testing using Ben Howard's Everything, and Macklemore's Cowboy Boots
The FA-4E is immediately so much more spacious than the F111, with even nicer and natural mids. I hear greater detail and black space in the FA-4. Add in better bass extension, and you have a phone that is simply on another tier to my ears. I do find that the F111 commits a cardinal sin to my ears. I have very high standards about the quality of my midrange and vocals. The F111 offends me by having a slight radio-ish tonality to the mids. Combine that with the Diffuse Field-esque forwardness, and it's just a big no-no for me. The FA-4 sounds much more right and effortless to my ears. I also prefer the FA-4's treble presentation/integration with the rest of the FR.
Again, on another tier. All IMO of course.

Cardas EM5813 Ear Speakers
As far as I know, this iem has been in development for quite some time and, after numerous delays, it's finally been released to the market.
There have been some very mixed impressions about it from members here, and from other audio sites I sometimes browse. As such, I'm pretty grateful for the opportunity to hear them myself.
Firstly, this is a rather impressive looking phone. The shell is of a brassy colour not very dissimilar to the Piano Forte VIII; the cable is quite thick and inspires a good deal of confidence in the build quality, and the strain reliefs look capable enough to handle the load of the cable. All is fine and dandy...until you place them in your ears for the first time. I have pretty bad driver flex on this pair upon every single insertion attempt. I don't know if this has killed IEMs over time, but it's certainly not pleasant to experience. The second issue comes from the cable. I haven't encountered one this unwieldy since the original Tralucent silver cable. It's thick, heavy, and very microphonic. I found myself sitting still as a rock when listening to the EM5813 just to avoid any sudden movements that would make the cable growl at me. I tried to listen to it yesterday while folding laundry, but I quickly gave up and reached for my ASG-2. Overall, it's a fine looking iem, but incredibly impractical.

The Cardas cable (on the right) compared to the stock CIEM cable used by the ASG-2 and FA-4E XB.

The Y-splits.

The ASG-2's earpieces feel almost half the weight of the Cardas'

My initial impressions were not exactly favorable, so it was recommended that I let them burn in some more. I've left them on my clip+ all weekend, and switched to the Auvio large tips.
The overall signature is what I'd describe as very warm and sweet. The focus here is obviously in the mid-bass and lower mids. The treble, while extended with good timbre, is quite recessed. What this leads to is a sound that I consider overly dark. The biggest thing I can't get over is a sort of fuzz with vocals that sets off my claustrophobia after a while. The actual soundstage is not small, but that quality in the vocals and overall sound signature reminds me of a room like this:

This tuning makes me not want to listen to most of my library. Combine this with the excess mid-bass, and I don't think I'd keep these around very long if they were mine. *Now, in the sake of fairness I want to point out that a lot of this might be due to the driver flex. However, I've tried to eliminate this possibility by using my sawed off complys and TS-500, both yielding the same type of sound. Maybe the Ear Mirrors don't exactly mirror my own ears.
Compared to the ASG-2:
Test Tracks and Gear:
iPod Classic 6th Gen -> Tralucent T1. This was my primary setup, but I confirmed my findings with the iPhone 4 and my desktop setup.
For Reasons Unknown - The Killers

Your Love - The Outfield

Move Your Body - Nina Sky

Only Love - Ben Howard

Valerie - Amy Winehouse (Back to Black version)

I started off with the Amy Winehouse song because I thought it would play most to the Cardas' strengths....and I was right. Something about Amy's voice song works really well here, and the electric guitar to the left is just having a grand old time. Amy's vocals are stark, yet smooth, but the background vocals exhibit the fuzz I mentioned earlier. I switch the ASG-2 and start laughing. The vocal intimacy is still there, but her voice is so much more clear, and the background vocals are much more defined and separated. There's also less mid-bass on the ASG-2, making the sub-bass tones of the guitar more articulated and less masked. The electric guitar has a taller soundstage to play around in. I can hear tiny inflections that are simply absent in the EM5813.
I hit next on the playlist, and Your Love starts playing. It's one of my favorite songs overall, and the G2 simply makes it come alive. Switching to the Cardas, the soundstage collapses in due to the extra warmth, and the fuzz is there again. One of my favorite parts of the song is around 1:30, where the toms on the drum set kick in. You can follow them from the right to the left side of the sound field. The ASG-2's extra soundstage height help with the imaging, and the extra treble presence gives better attack to the impact.
I use Move Your Body for bass performance sometimes and, with the ASG-2 as the baseline, the warmer nature of the EM5813 works better in its favor here. Though the ASG-2 has greater detail, separation, etc., the EM5813's more laid back treble allows for higher volumes than the ASG-2 can manage without sibilance. That adds up to more headroom for the bass. The EM5813 sounds more fun on this track.
Last was Ben Howard's Only Love. Again, the EM5813's midrange haze was a distraction. However, the extra warmth and intimacy was nice. Then I remembered I could open my ASG-2's bass port to achieve the same level of warmth without that haze. I also think I hear a bit of shoutiness in the Cardas. I'm also noticing some timbre issues due to its tonality, in that some instrument harmonics are screwy or missing due to the way the FR is skewed.
I really don't know what to say about the EM5813 as a package. It has its moments of brilliance, but the bad far outweighs the good to my ears. I have a feeling that the metal housing may have something to do with the way it sounds, as it has a (very small) trace of the Piano Forte's overall character (the tuning is drastically different though). I don't see it as a practical package, either in sonics or ergonomics.

InEar StageDiver 3
I've been really looking forward to this one. 
The SD3 is a triple balanced armature phone in a 2-way configuration - 2 bass drivers, and the other handles mids and highs. 

It currently retails for 469 Euros at Thommann, which works out to about USD $600, this puts it in line as a direct price competitor to the ASG-2.
Build quality wise, this is a very good looking phone. I love the piano black finish, and it seems they put a lot of work into getting it to fit just right despite its size. It's about  25% larger than the ASG-2, but doesn't even feel that way inside the ears. It may ultimately end up being even more comfortable for some due to its smaller nozzle size. It's really physically reminiscent of the TG334, but even better looking (IMO, of course), and has the advantage of using standard Westone style cables.

As for the sound, this is really one unique phone. I looked into the specs after hearing the phone, and I didn't doubt them at all.
This is one of those cases where the drivers used can tell you how the phone will sound. It's not so much that the bass is terribly emphasized, it's just that the sound is tilted heavily towards that region. It lends to a very warm and thick sound. Though the soundstage is fairly large, the center stage feels quite congested because the mids and bass seem to be fighting for the same space. There is plenty of bleed, and the mids can often stand behind the bass. The treble has just enough presence to avoid being called absent. I also find the timbre of some instruments and, like the electric guitar and snare, to be thrown off by this tonality. Some vocals also come off as a bit stuffy.
Tuning aside, the technicalities are pretty good. Detail retrieval is there, imaging is there, it just sounds really clouded. It's almost like someone tried to copy the FitEar 334, but took a few wrong turns somewhere along the way.
I think the sound could be greatly helped by a few, well-placed strokes of EQ. In fact, I really want to use the same one I used on my ASG-1.2, but I don't have access to my computer anymore.
Now, vs the ASG-2...
Compared to the SD3, the ASG-2 is immediately much clearer in the mids, and the bass is a good deal more controlled. It's also more extended in the bass and treble. The key difference here is just how much more air there is to the sound. The lower mids of the ASG-2 are a step back, and the more linear FR allows for so much more space for the sound cues to dance. Vocals are more holographic, the bass is deeper, with a lot more texture (Party Rock Anthem is a good test for this), and the signature is faster overall. 
Test Tracks:
Wish - The Flashbulb

Going from the SD3 to the ASG-2 produces improved clarity on this track, especially with the cymbals and snare hits. The timbre improves slightly, but not as much as I thought it would, given the sound sig differences.
Limit to Your Love - James Blake

I'm using this track to test for bass control, instrument separation, and timbre.
Again, the biggest improvement comes in the form of clarity - not the false clarity that comes with overly boosted treble, but true clarity (whatever that means). There's also greater separation, bass extension, as well as timbre. Gone is the stuffy feeling in the mids and bass. I could "feel" the bass reach further down into my chest, while still remaining tight and impactful. James Blake also did several voice overs in the vocal tracks, and each was more apparent on the ASG-2. 
Thirst - City and Colour

The differences are the same here, but there's the added element of rock guitars. The SD3 tended to muck up the guitars, and just lacked overall bite compared to the ASG-2. Whereas the distortion guitars sounded like buzzing, pulsating instruments, the SD3 made them sound more like phones vibrating on a desk.
I had a few more tracks in mind, including some of the ones Sinth sent, but it would be more of me repeating myself.
Now, despite how negatively I may have spoken of the SD3, I think it's a good performing phone. I may even venture to say that it's actually be priced accordingly, given the crazy prices of TOTL iems nowadays. It's just that the ASG-2 is that much better. Still, the SD3 has a very distinct flavor to it that may or may not be to your liking. I can personally appreciate it, but I feel like the ASG-2 is a much better option, especially when you take their similar prices into consideration.
Carlsan will have his pair back soon, so he'll be able to do his own comparison.

Tralucent 1Plus2
The next few paragraphs will be my sincerest attempt at not gushing about the 1Plus2.
First off, the 1Plus2 is exorbitantly expensive. If you want to get your hands on a pair, expect to pay USD $1,300 if you want to go through Musica Acoustics, and this before any any of the special cables. Furthermore, the price you pay for the 1Plus2 goes entirely towards the sound (and some profit, of course). I say this because the sound is pretty much the only impressive aspect of the 1Plus2. Ergonomics are just short of terrible, the stock cable is very stiff and has a mind of its own, and the build quality inspires zero confidence. I usually baby loaner iems anyway, but I felt the need to handle the 1Plus2 like a freshly delivered neonate. I know one can't expect FitEar-like precision from everyone, but I'm sure they can do better than this.
When I first listened to the 1Plus2, I was immediately struck by how similar the tonal balance was to the Beyerdynamic DT880 that I owned for a couple of months. Both phones share a slightly boosted low end, and mids that are scooped just enough to showcase an amazing treble response. The treble itself works wonders for the overall sound, bringing clarity, detail emphasis, and changes in timbre that are either negative or positive depending on the song.
To me though, the real hallmark of the 1Plus2 is its soundstage and imaging. The stage is about the same size as that of the ASG-2, but the 1P2 has the sound signature to take advantage of that space, creating a starker image thanks to the increased treble and lessened bass response. The scooped midrange also moves the vocals far back enough to allow sound cues to dance around the stage more.
Note weight is decidedly lighter on the 1P2 than on the ASG-2. I've outlined the benefits of this already, but there are also downsides. For instance, I like a good bit of rock music, and I like my distortion and electric guitars full, crunchy, and powerful, toms deep and impactful, and vocals that have emotion. I don't get this with the 1P2, at least not vs the ASG-2. Guitars sound remarkably less full, and the song loses the engagement factor for me.
I went on to test the soundstage of both iems using Chesky's Explorations in Space and Time binaural album (seriously, you need to buy it now if you don't already own it). the test confirmed for me that both iems are equal in soundstage dimensions, but the 1P2's change in sound sig goes a long way towards creating a starker image.
A/B'ing these two iems is actually pretty difficult because they're so different. Switching immediately from the 1Plus2 to the ASG-2 will produce a bloated and muddy mess, while going from the ASG-2 will find the 1P2 sounding tinny and bright. Of course, things right themselves once the brain is allowed to reorient itself to each of the signatures.
[size=10pt]Test Tracks[/size]
[size=10pt]Morning Song - The Lumineers[/size]

[size=10pt]This song should be on a disc sent with every demo pair of the 1Plus2. Personally, I was slightly unimpressed by the 1P2 until this track came around on shuffle. The cymbal presentation here is simply unheard of. I think it just may be the best reproduction of cymbals I've ever heard. The mids and bass are ok, but it's the treble that steals the show here. I've heard of gear synergy, but this song on the 1P2 is pure symbiosis. The ASG-2's sound signature just couldn't keep up here. This is the only song where I could say that I certainly preferred the 1P2 to the ASG-2.[/size]
Helping Hand - YoYo Ma, et al.

This track is an example of the two opposing tuning philosophies adopted by each iem.
The 1P2 is rather aggressively detailed here, but the recessed midrange takes away from the recording. I have to turn up the volume to get the strings to have the kind of body that I'm used to hearing in real life, but then the treble starts becoming too much, making the violins too bright. Notes are a good deal thinner vs the ASG-2, which I feel affects transparency slightly. The ASG-2, on the other hand, sounds a lot fuller. It manages to capture the rise and fall of the recording more efficiently despite its warmer signature. It's a case of clarity vs transparency here, and I ended up preferring the ASG-2's presentation.
The Way I Am - Ingrid Michaelson

Again, I had to boost the volume to get vocals to have the kind of body I want from the 1P2. Mark you, it has greater clarity than the ASG-2, but a side effect of the thinner note weight is that it seems like it's trying a bit too hard. Ingrid's voice sounds slightly grainy, a problem I had with my DT880, and the brighter treble is evident in the overly lively snap of the hand claps.
Moody's Mood for Love - Quincy Jones and Co.

I expected the ASG-2 to completely take this one, but the 1P2 more than held its own. The 1P2's sound sig works well here, and the clarity does great as well. However, the ASG-2 takes it a step further (to my ears), reminding me of my favorite smoky jazz club in New Orleans. It removes that bit of grain that the 1P2 has, and adds smoothness and further immerses you in the music.
I also A/B'ed the two using these tracks:
Flower Duet - Adriana Kohutkova
Bronte - Gotye
A Dagger Through the Heart of St. Angeles - alexisonfire
I'd go into detail for these songs, but the differences are the same as I've already outlined.
I can't say that I'm disappointed by the sound of the 1Plus2. It's a marvelous sounding iem, with a soundstage that takes no prisoners. However, I'm not a fan of its tonal balance. As a matter of fact, my impressions of it mirror the progression of my time with the Beyer DT880. I started off impressed by just how open sounding it is, and how the treble is truly awe-inspiring when it hits its stride. Unfortunately such a signature doesn't do very well to my ears for extended periods of time, and there is a certain level of grain that is almost inevitably there. I ended up selling the DT880 to buy the Sennheiser HD600, and I'd do the same if the 1Plus2 was mine. Really, if you want to have a fantastic representation of the way the 1Ps and ASG-2 compare without spending $2,000, get our handson the DT880 and HD600.
Update 6/30:
Gavin contacted me not long after this comparison thanking me for my feedback about the 1Plus2. He also offered me an opportunity to see the advancements they'd made in build quality and ergonomics. Of course, I jumped to say yes.
Fast forward a few weeks and this new 1Plus2 is in my hands. The black carbon fiber faceplates, with a black shell make for a gorgeous iem. The most notable thing here is that the body of the 1Plus2 feels a lot sturdier, and the cable jack inspires much more confidence than before. As for the cable itself, the word "improvement" doesn't quite emphasize how much better this one is than the last. It's a lot thinner, more flexible, and is less of a pain to deal with. Microphonics are also noticeably reduced. This makes for a much more pleasant listening experience.

As for the sound, I immediately noticed something different. There is definitely more sub-bass in this pair than the last one, and the treble is a much more controlled. I don't know how much of the change has to do with the fact that this pair is using the silver/gold upgrade cable, but it's a pretty large difference. It retains the overall characteristics of the pair I heard before, but improves on the overall tonal balance of the iem.
As for the cable itself, it's made me a believer. I tried it on the ASG-2, and it's as if I unlocked a hidden level of performance just above my current one. A/B'ing the stock and Translucent cable shows improvements on the side of the latter. The most notable change is the added control in the upper bass and lower mids. It removes a good deal of bloat from the stock cable, leaving only a tinge of warmth down there. I preferred the ASG-2 before, but now the margin has grown wider.
All in all, both the 1P2 and G2 are world class iems. I feel like they're equal performers on a technical level, but preferences will dictate which iem one finds more suited to their listening tastes.


FitEar ToGo 334

I'm pretty excited about this particular shootout, because these two phones share the exact same sound signature. To raise the stakes even more, both phones currently have the reputation of the some of the best mids in the IEM game.
The 334, like the ASG-2, has relatively smooth treble, forward mids, and robust lows. 
I'll be focusing mostly on the mids for the review, but I'll try to be thorough about the rest of the sound.
Test Tracks
Hallelujah - Jeff Buckley

I chose this track because it's overflowing with tiny nuances. It will be a good way to test detail retrieval.
Little Hell - City and Colour

I'l be looking for how well Dallas Green's voice is portayed, the timbre of the snare, and the shimmer of the cymbals.
Turning Tables - Adele

It's Adele. She's awesome.
I Will Wait - Mumford and Sons

This will be a test for PRAT, and other other audiophile words that imply "fun"
** Before I begin, there is something that should be disclosed. The TG334 is a loaner from a fellow member here. He sent it out as a package that includes the 334, BTG audio cables for the 334, and the same BTG Audio with Westone pins for compatibility with the ASG-2, so I could try them out to hear the differences. Unfortunately, he forgot to pack the 334's stock cable, so I'll have to use the BTG cables on both phones to do the comparison. I'm also using the ASG-2's (very good) stock double flange tips on the 334.
The stock cable, along with some Ortofon tips, should arrive on Friday. I'll update this post then. Now that's out of the way,
Starting with Jeff Buckley's Hallelujah on the TG334 is simply haunting. The sound is unmistakably colored, but it's such a natural sounding effect. Jeff's voice and guitar lovingly caress you through the warmth, and resolution is simply top notch. I switch over to the the ASG-2 and hit play, then promptly walk to my bathroom mirror to make sure I'm not still wearing the TG334. WOW! The phones are so close in technical ability and signature that it would take a seasoned ear to listen out for the differences. As I scrape my jaw off the floor, I start to listen more closely for differences. In that light, please take into consideration that the differences I am about to describe are within roughly 5%, 10% at the most. Definitely noticeable, but require closer listening and potentially higher volumes. 
Resolution of raw detail in the mids is dead even. Anything the TG334 could pick out, the ASG-2 could too. The differences came in the slight variations in tuning. The TG334 has a warmer, lusher sound compared to the ASG-2's drier tone. The 334 added a tinge of warmth that worked magic at certain points of Hallelujah, but the result was a cloudier sound after a quick switch from the ASG-2. The ASG-2 also had better treble presence and extension, adding to the slight clarity gap between the two phones. I'm sure extra warmth could have been added to the ASG-2 by opening the bass port, but I left it as is seeing that not everyone might go for the bass port option. 
City and Colour's Little Hell was a totally different story. The TG334 sounds downright honky compared to the ASG-2 on this track. The ASG-2 has a lot (note that the "lot" is italicized and bolded) better treble timbre and presence. This song was recorded in a hollowed out cathedral, and the ASG-2 gives off the ambiance much better than the TG334 can. Dallas Green is a good deal clearer, the guitars are more delicious, and the atmosphere is right. Dale (Aurisonics CEO) wasn't kidding when he said that these weren't any ordinary balanced armatures. The ASG-2's upper mids appear a bit more laid back here, adding to the sense of space.
I Will Wait was more interesting. With the ASG-2's bass ports closed, the TG334 had more (welcome) bass, than helped add a more toe tapping vibe to the track. Mids and treble were more equal, as I could pick out about equal detail in both phones. 
I don't know what made the difference so large in Little Hell. Maybe it was because the song required the use of much more treble, prompting the ASG-2's tweeters to kick it up a notch. The other songs were more focused down in the mids, so I guess that explains my results.
Take this as a preliminary comparison, as I'm awaiting the ortofon tips for the 334 that should alleviate some of the pressure that is caused by the closed design. Maybe this will have a positive impact on the sound. I'll update on Friday evening.
The stock cable and Ortofon tips arrived yesterday, and I've spent the morning redoing the comparisons.
The differences remain the same to my ears, even completely stock on both. 
However, I have to comment on the rather large comfort difference the Ortofon tips bring to the TG334. The 334 is a sealed design, and as such puts very substantial pressure on the ear  upon insertion. I can only stand to insert use the 334 with double flange tips or foams. However, the Ortofon tips are made of a material that somehow manages to alleviate this pressure. It's the only single flange that I can use without discomfort, and it brings the extra ease of insertion and comfort of single flanges.

Sennheiser IE800
Test Tracks
Neon Cathedral - Mackelmore

So Me a Say - Vybz Kartel (Jamaican Dancehall music) - You need to hear this on the ASG-2

I Want You - Kings of Leon

Gone - Lianne La Havas - Amazing singer, among the best of her generation

The sound signature of the IE800 is rather linear, with a large boost in the sub-bass. Switching from the ASG-2 to the IE800 will produce a very apparent boost in clarity, and uncovers detail in the treble. The midrange of the IE800 is also more laid back, with a more effortless sound thanks to the lessened mid and upper bass, and the extra sparkle in the treble. One caveat here is that the treble is rather delicate, to put it lightly. Cymbals sound like they're being struck with chopsticks instead of drumsticks, and there is a very slight tizziness on some tracks. I'm not complaining though, as it contributes to what it simply the best midrange I've heard. Notes are a good deal lighter than on the IE800, further adding to the clarity of the range.
The bass is simply better on the IE800. It's just cleaner, and stays in the sub-bass region where the rumble is felt more than heard. It is actually slightly more extended down low compared to the ASG-2. The ASG-2 is very visceral above 60 Hz, but ends up running out of energy below 20Hz. The difference between the "bass-es" can be described with this old ad:

The ASG-2 is her, before the "movement", and the IE800 is the end result.
Now, the ASG-2 does win in several respects. The soundstage is taller and a bit more 3D. What this results in is, in addition to the more forward and dynamic midrange, is a vocal presentation that is equally as unique as the IE800's. Voices seem to roll of your own tongue. It's as if you were the one singing, a very addictive effect. The midrange is also just as resolving as the IE800's, which only adds to the amazing vocal presentation. Lianne La Havas' voice never fails to stun me, given the intimacy of her voice on the ASG-2. It's rare to encounter an artist who can pour her soul out through her voice.
One other important thing to mention about the IE800 is the delicate treble...that also happens to be a gremlin. In the same way that a gremlin should never be fed after dark, it is equally dangerous to listen to the IE800 at high volumes. The thin, docile treble suddenly becomes more and more razor like as you add decibels. When it reaches a threshold, it's almost unbearable. In comparison, the ASG-2's treble always remains smooth, and gains clarity the louder it goes. I listen at around 55% of my iPhone 4's capacity, so I'm usually at the point where the treble is just right for me. 
In the Vybz Kartel song I posted (seriously, listen to it. It's ok if you don't understand the words...I'm a professional Jamaican, so I do.) the ASG-2 is a good deal more "fun", since I can crank the volume, and the bass and treble always remain under control, all the while with the vocals floating slightly above the mix. The same goes for Neon Cathedral (listen to that too...I post these songs to share my music tastes 
Altogether, I slightly prefer the IE800. The balance, combined with the exquisite sub-bass, is my ideal sound sig...aside from the thin treble. I would actually be pretty upset if I didn't, given that the IE800 is twice the price of the ASG-2. My original thoughts on the ASG-2 are still very valid, it's just that it's flaws are all the more apparent beside the IE800.

Ocharaku Flat-4
I was going to do a write-up about the Flat-4 similar to how I did the other iems, but I'm afraid I can't because I simply don't know how I feel about it yet. 
The Flat-4's sound is quite the anomaly, similar in radicality to Final Audio's Piano Forte series. Now it doesn't have the same frequency response (not even close), but it's equally as strange to my ears.
What I hear from the Flat-4 is...detail. Straightforward detail. I can't really pin down a sound signature that would make sense. All I know is that the Flat-4 is probably the most ruthless iem I've listened to. Every last detail is shown, every rise and fall in the track, every parting of lips, every slight shift in the pianist chair, every page turn in an orchestral piece, and every shift in the sound stage. This is a radically analytical phone, but with a very powerful low end. You won't get any warm caresses, nor any lingering shimmer of a cymbal. Just pure detail. If the song is recorded well, awesome. If not, sorry.
But what truly defines the Flat-4 for me, and the reason I'm so firmly planted on the fence about it, is just how raw it sounds. For me, an important hallmark of a top of the line headphone or iem is the level of refinement it can produce. The Flat-4, however, is a detail monster that doesn't have the last touches of smoothness on the edges of notes, yet it's an extremely engaging listen. Aside from the standard well mastered files, I'm finding that I also have to listen to music I actually like for me to enjoy the Flat-4. It's almost as if it presents me the details, then uses my emotional attachment to the songs as the glue that binds the experience together. A very popular phrase I see around here is "OMG, this song sounds amazing on X headphone." I haven't had that experience even once with the Flat-4. Instead, all I think is "I really do love this song." An example of this was last night when I was laying down with the lights off, and Gavin DeGraw's "We Belong Together" (the stripped version) came around on shuffle. All at once, while listening to the F4, the lyrics took on deeper meaning, and the song really touched me. I almost called my girlfriend up to tell her I love her. Almost.
I usually try not to wax poetic about iems, and I generally succeed. Only the Piano Forte VIII and Flat-4 have managed to pull this out of me. 
While typing this up, I thought of a way to describe the Flat-4. I imagine it as sitting on an outside terrace at 6 am on a cold spring morning. There's nothing out there but you and your thoughts, and it's at that time, in that moment, that you think most clearly.
As for comparing it to the ASG-2, I don't think I really can. What I will say is this...
The Sennheiser IE800 is probably my favorite IEM to date. I'll probably own one down the line. However if someone were to offer me a choice between it and the Flat-4, given that I already own the ASG-2, I would take the Flat-4. It would probably it in a drawer most of the time, but every once in a while I'd listen to it...maybe while sitting on an outside terrace on a cold winter spring morning with a cup of green tea in my hands.

Rhapsodio RDB+ 2v1
I don't like it. I don't like it at all.
The most apparent thing here is the lack of note weight in the mids and highs, combined with (rather good) sub-bass. Upon further investigation I found out that it was a TWFK design, with an 8mm dynamic driver handling the bass.
I'm personally not a fan of the TWFK sound, with the exception of a few well-tuned varieties. The RDB+ is not, to my ears, well-tuned. Combine the lack of note weight with treble that becomes quite peaky at anything but lower volumes, and you get a very uninvolving experience. As for the dynamic driver, I really only hear it come in when the a song calls for heavy bass, or a solid sub-bass line. The whole thing sounds rather like the cheap, tinny speakers in my 1990 Lexus, plus a poorly integrated sub-woofer. I'm actually sorry for the dynamic driver because it puts out such quality bass, but was paired with something so...poor. I actually think my car speakers sound better.
As for songs, I tried listening to everything from acoustic rock, all the way to Celine Dion. Nothing sounded good to my ears. Distortion guitars lacked crunch, drums snaps had very little body, and vocals were distant and lacking emotion, even venturing into nasal more often than not.
Is the RDB+ 2v1 worth anything near its price, given its competition? Heck no. Go buy yourself a full-sized headphone with that money....IMO 
May 19, 2013 at 6:08 PM Post #3 of 7,012


Headphoneus Supremus
Aug 25, 2004
Thanks for the informative and entertaining writeup, Eke. Looking forward to your comparisons :)
May 19, 2013 at 6:45 PM Post #6 of 7,012
Jul 22, 2011
Very nice review, eke

Thanks for the informative and entertaining writeup, Eke. Looking forward to your comparisons

 Thanks guys.
Originally Posted by FlySweep /img/forum/go_quote.gif
how'd you find the driver speed?

Surprisingly good. It doesn't really sound like it would would be terribly fast, but it didn't skip a beat on my speed test tracks.
Particularly what I'm most interested in.

It should be up before mid-week.
May 19, 2013 at 6:57 PM Post #7 of 7,012


Headphoneus Supremus
Sep 22, 2005
Quick story, I went to a seafood bar in my town on Friday after picking up the ASG-2. There were some live performers there, so I let the lead vocalist (coming from UE11 Pros) borrow my pair for a set or two. Just as the band struck up the first song, he stumbled over the first few words in the song with the most priceless look on his face. When he finally returned the ASG-2, he begged me for Aurisoncs' phone number. I just thought that was a testament to the sound that Dale has created.

Loved that bit. Great read Eke, I'm really psyched to get my pair now. Seems like the long wait has been worth it
May 19, 2013 at 7:00 PM Post #8 of 7,012


Sits up all night comparing IEMs.
Nov 14, 2009
Nice job eke!
May 19, 2013 at 7:37 PM Post #9 of 7,012

Tom Yum Goong

Headphoneus Supremus
Jan 1, 2013
Sorry for the stupid question, but where did you get the ASG-2 from?
I can't even find them on the Aurisonics homepage :|

Oh and thanks for the nice review :)
May 19, 2013 at 7:48 PM Post #10 of 7,012


Master Troll
Jul 30, 2012
Quick story, I went to a seafood bar in my town on Friday after picking up the ASG-2. There were some live performers there, so I let the lead vocalist (coming from UE11 Pros) borrow my pair for a set or two. Just as the band struck up the first song, he stumbled over the first few words in the song with the most priceless look on his face. When he finally returned the ASG-2, he begged me for Aurisoncs' phone number. I just thought that was a testament to the sound that Dale has created.

Great write up/ story ekey boi!!!
Only thing to ask now is "how muchy"???

May 19, 2013 at 7:51 PM Post #11 of 7,012
Jul 22, 2011
Sorry for the stupid question, but where did you get the ASG-2 from?

I can't even find them on the Aurisonics homepage :|

Oh and thanks for the nice review :)

Thanks. They're still not up on the website. They're finishing up orders from the preorder period. I think you can call. Web orders should be up soon.

Nice job eke!

Thanks Eric!

Loved that bit. Great read Eke, I'm really psyched to get my pair now. Seems like the long wait has been worth it

May 19, 2013 at 7:53 PM Post #13 of 7,012


100+ Head-Fier
Dec 10, 2010
"However, I don't think performers will be looking for effortlessness when they're belting their lungs out on stage."   Totally agree!
  But I do think audiophiles do look for it, and I believe that was exactly Tyll Hertson's point.   By the way, a pm from him to me indicated there was no problem with his sample and he doesn't intend to return it.   I told him I shared his view of the "highs" issue and he indicated he was glad someone heard like he did.   I found out from Dale that there was also no problem with my tweeters, like Tyll figured out with his.   But Dale is changing the dampener material for me along with the bass setting to bring out that signature I prefer.  
Dale has been absolutely awesome in working with me, as well as Andy and I highly recommend them and their company.   My problem was listening to the wrong reviews and missing that the AS2 has a "thicker" sound than the "thinner signature" I like.   (What I found interesting was that Shotgunshane admitted that his new AS2 sounded different than what he remembered of the protype he heard a year ago.)     Its absolutely amazing that Dale is working with me on this, am very grateful and looking forward to getting them back!      
May 19, 2013 at 8:01 PM Post #14 of 7,012
Jul 22, 2011
"However, I don't think performers will be looking for effortlessness when they're belting their lungs out on stage."   Totally agree!

  But I do think audiophiles do look for it, and I believe that was exactly Tyll Hertson's point.   By the way, a pm from him to me indicated there was no problem with his sample and he doesn't intend to return it.   I told him I shared his view of the "highs" issue and he indicated he was glad someone heard like he did.   I found out from Dale that there was also no problem with my tweeters, like Tyll figured out with his.   But Dale is changing the dampener material for me along with the bass setting to bring out that signature I prefer.  

Dale has been absolutely awesome in working with me, as well as Andy and I highly recommend them and their company.   My problem was listening to the wrong reviews and missing that the AS2 has a "thicker" sound than the "thinner signature" I like.   (What I found interesting was that Shotgunshane admitted that his new AS2 sounded different than what he remembered of the protype he heard a year ago.)     Its absolutely amazing that Dale is working with me on this, am very grateful and looking forward to getting them back!      

Despite shotgunshane's admission, he totally disagrees with Tyll, as do I. I find the treble perfectly extended, with just the right amount of volume. It is a fuller sound, and it's unfortunate when purchases are made based on incomplete information. The mids are never drowned out either.

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