Ok I just got about 20 mins to write the comparison for both versions ,so here you go..
SM64 V1 vs SM64 V2 comparison
Version 2 retail box (back)
Version 2 front
Version 1 box
Version 1 left
Version 1 right.
More red wires can be seen in version 1
Notice the filter is slightly higher in v2. (v2 at the top)
My portable Galaxy S3 international version with Wolfson WM1811 DAC
A brief comparison between both SM64 version..
The treble of the v2 has tame down a little bit. Its not much but just enough not to go over too hot. The details are all still there but just not as obvious as v1. I believe most people will find the V2 treble just nice as it’s still more than HD650, Shure 535 or the venerable TG334. I know a lot of consider the shure 535 veil, no worry the V2 has more sparkle than shure 535. The SM64 has this quality of very good extension in the 12-16K region. Most IEM avoided it but instead focus more on the 4K-8K and start to roll off after that… not so with SM64 v1 or V2. This make both version a pretty airy IEM. The V1 just has this breathy vocal of air coming out more and may at times sounded sss . I don’t consider the V1 harsh at all, It’s still way below the Th900 or the old Denon line DXXXX.
The vocal of the V2 is surprisingly thicker or creamier than V1. Voice is more pronounce, full and a little more romantic. The difference is quite obvious, the V1 is like using a solid state amp while the V2 is powered by a tube amp. In direct comparison, V2 vocal is dreamy, edged not as clearly define as V1 but is rewarded with a richer and fuller quality and quantity. One of the reason is the mid bass bleeds into the mid-range causing the voice to have a more bassy quality. I actually prefer this as it moving more towards the TG334 direction mid (consider the best by many here).
Oh boy, there is quite a big difference here between both versions. So much that I thought they were different IEM altogether. The mid bass is more pronounce in the V2. As I mention earlier, that the V1 suffer a little lack of mid bass hunch and have a slight gap in the frequency, well the V2 patch it up. The bass is tighter and more pronounce, it’s punchier as well. I believe there is one complaint from one user that it lacks punch, I am thinking you probably have the V1, the V2 punch more than the HD650.. Unfortunately the mid bass leak into the vocal, it has to be..as it a little excessive in my opinion. The addictive sub bass of the V1 disappeared with the V2. It’s not because its roll off, it’s because the mid bass is overly much that it masked over the sub bass and leak a little to the vocal. No doubt, I miss the V1 sub bass quality here. I notice that the V2 filter is a little bit more forward and I suspect that the filter has been change to give more bass qty. Again, this is moving more towards the TG334 tonality here.
Soundstage remains the same with V1 slightly ahead due to its more airier nature. Its subtle at best (I wouldn’t mention a diff here if this is not a audiophile forum.
I can live with either version. I find the V2 a little lacking in the final extension but V2 is not veil at all as no loss of details are detected. The V1 is a more relaxed IEM where you can listen for long with low volume without missing anything due to its airy nature. This is a very good IEM for late night listening session which I have been enjoying for the past weeks. The V2 is slightly more aggressive in nature with its more forward vocal presentation, punchier bass line and a more romantic vocal. I actually prefer V2 as I can solve the airy issues with EQ on the V2 easier than I could solve the V1 mid bass gap and thinner vocal. All in all both version still have the same sound signature. I would rate both version as the best $499 ever spent on a pair of IEM beating even full size headphone like the reference HD650. The V2 version is not very far from the TG334 and at $499, it’s a real winner.
Edited by Audiowood - 8/26/14 at 10:37am