2. amps-preamps
  3. 1093220302

Pass Labs X-1 -VS- Adcom GFP-750 Preamp

This thread is for people who own, or have owned both the Pass Labs X-1 and the Adcom GFP-750 preamps.
I am curious because the circuitry in both preamps was more or less designed by Nelson Pass.
What all sonic advantages does the Pass Labs X-1 have over the Adcom GFP-750, top to bottom and everything in between, when using the Adcom in both its Active mode and in its passive mode?
Does the Adcom have ANY sonic advantages at all over the Pass, or only disadvantages?
Is the Pass X-1's sonic improvement small, moderate, big, or dramatic?
Finally to those or have heard, owned, or compared both:
What all sonic improvements does the Pass Labs X-1 offer over the Pass Labs X-2.5 preamp?
How noticable are the improvements?
Thanks in advance.
daltonlanny
daltonlanny OP
301 posts
 
Stehno,
If you will view my thread history, I never had a thread which asked for a comparison between the Adcom and the Pass Labs X-1. Maybe I had one for the Adcom vs the X-2.5?
I am using an Adcom GFP-750 modified by Stan Warren with Black Gate capacitors by a previous owner and was just wondering if the X-1 is a big enough step up to justify its considerably higher price.
Thanks,
Lanny
johnny
5 posts
 
I auditioned a GFP 750 with my Aleph 5 and thought it was only fair. I purchased an ARC LS-15, which I very happy with.
jayctoy's avatar
jayctoy
4,175 posts
 
Dont forget the GFP750 is a class A gear,I think Wes Philip
reviewed it.This preamp served me for 4 years.For
me ,its very musical.I have not heard the X1, If Stehno
said its better, then I agree.
More to discover