Finnaly Got my C2.1 AMP this will be my very first impressions ...
First thing replacing the 2* OPA604 by 2 * Opa MOON .
(For a direct comparaison to my M-Stage also using 1 OPa Moon (dual this one)
But :
M-Stage is fully burned (for those you believe in burning) + 1000h (at least) .
OPA MOON on m-stage : something beetween 350-400 hours .
C2.1 just received today soo ...
2* OPa moon single never used Before .
Source : NFB-2 (DIR 9001) (directly feaded) By my motherboard (P6T6 WS revolution using AD2000B chip) Coax . (peraphs the weakest link)
IN RCA mode (direct compairason with M-Stage) .
Difference is Not obvious the C2.1 for me is better but by a small margin .
comparaing the C2.1 in ACSS and the M-Stage with OPA MOON is another thing ...
C2.1 + NFB-2 really shine here .
More details , better instrument separation , tonnaly muche more neutral , more dynamism , the sound is less " slobber" (baveux) (sorry don't find an adequate translation
) .
i had wow factor hearing : Piano Concerto No. 2, Rachmaninov , The Piano sounded pleasent using M-Stage with OPA MOON ... but with C2.1 using ACSS ... tonaly , the timbre WOW much more life like ...
I can say the same thing with guitars (in wishmaster , Nightwish) , **** this sounds like a real one
, or very close XD) .
etc
Well like i said this is just some impressions in the first hours of use .
When C2.1 will reach 300 hours i will try to do a real comparaison , more detailed
(if i can keep the M-Stage until that ...) .
C2.1 with ACSS seams neutral like AUdio GD say . and at this point ACSS > RCA by a large margin .