Here is some questions Deep Funk asked me when he was deciding if he wants the amp. I figured other people might have the same questions so I decided to post it up.
regarding the sound signature would you say the latest cMoy adds more warmth, bass and sound stage?
yes, especially on um3x. ad900 might be warm already. change is not obvious with it.
Furthermore, does the bass sound defined and deep with the cMoy?
yes actually it does and it extends deeper. sounds much better with cMoy than just straight out from headphone out. so improve both quantity and quality. you can hear how the bass sound and the tiny fluctuation of the bass guitar string. also true on the bass in orchestra(this is honestly what i feel. This is why i bought the cMoy in the first place)
Does the bass invade the midrange?
ad900, slightly. um3x, definitely not.
The vocals and highs generally still sound true to the record through the cMoy and headphone?
for ad900, definitely changes, if the song has both low and high. for um3x, definitely sounds true to me.
for ad900 if the song only has vocal, then it is okay. only moves the voice slightly away from where it was.
I think it changes the high more on classical music, i.e. violins. the violins moves to the back of the crowd, and the bass comes to the front of the crowd, ie you can clearly hear the bass plucking on their string.
but on vocal(male and female) it is only a slight change. again, vocal moves back a little, and the bass comes a little forward.
additonal note that i want to add is the change can be minimize by lower the volume control on the amp and increasing the dap's volume. the bass increase is definitely still there but the effect on high becomes smaller. that actually sounds like a very good solution to me.
It may sound like it is all negative. But i am just focusing on the changes of high. On a lot of songs, you can definitely feel the difference in bass quantity and quality but little effect on the high and mids. honestly, on um3x, it sounds so good that i don't want to take them off and switch to ad900 for testing. If you are taking the amp on-the-go, this is probably a good solution to increase the bass on cold sounding IEM.
