Quote:
Originally Posted by
brasewel 
@Shahrose: I'm surprised you found such a significant difference between the Gilmore Lite and the GS-1. Granted I only listened to the Glite at a meet recently but I thought they were practically the same.
The difference between the GS-1 and GLite+DPS wasn't always obvious because some tracks highlighted them more than others. Also, the more revealing the headphone, the better I could discern between the two. I don't think the differences were huge, but they were definitely noticeable with cans like the HD800, HD650, HD600, HE-5.
I found that if I connected them to a low-end source, both of them sounded bad. Don't expect either one to gloss over or mend the signal they're being fed. For a lot of people, I can see how going for a more forgiving amp that sounds decent out of anything can be an easier choice. But, as I said earlier, those kinds of amps also don't scale as high with source upgrades IME. The M^3 and Beta both slightly round off the leading edges of notes to blunt the attack a bit because of their MOSFET design. They're also inherently a bit dark, warm (the M^3 moreso) and open sounding, which can make even a harsh source sound pleasing a lot of times.
Quote:
Originally Posted by
olor1n 
Thanks for the links Shahrose. Can anyone comment on how the M^3 fares against the GS-1?
Edit: Nvm, the question is somewhat addressed on page 2.
I owned 3 M^3s and all of them got sold in favour of the GS-1+DACT. I thought the M^3 was better than any commercial solid-state amp I heard (and more transparent) but fell short of the GS-1 in terms of speed, resolution, layering, and accuracy/transparency. The M^3 does, however, expand the soundstage of everything it's connected to, so its SS size was more constant and often larger than the GS-1, whereas it was much more variable on the GS-1 (track to track, source to source). As mentioned earlier, the M^3 also sounds smoother and warmer so is very forgiving. With low-end sources, I preferred the M^3 because it imbued its own pleasing (tube-like) sound signature on them, but with high-end DACs/transports, the GS-1 pulled away and kept sounding better and better. That's not to say the M^3 ever sounded bad. IMO, it's by far the best amp in its price range. I like it a bit better than the stock Glite.
A friend (good DIY'er) on Head-Fi told me that the M^3 with the right bias and parts sounds very close to a Beta22...just something to keep in mind.
Just as a reference, 2 of my M^3s were from Rockhopper with Sigma-11s, and one was built by another Head-Fi'er with oversized heatsinks and a STEPS PSU. I extensively tested a lot of opamps (in profile) and found the AD8610 to be the best in all 3 slots...the ones Ti also recommends. The OPA637/627 made the sound less transparent, slower, thicker and darker, but also produced the largest soundstage and the most forgiving/sweetest sound. Other opamps were also compromises in one regard or another IMO.
Edited by Shahrose - 4/21/11 at 9:39pm