Audio Research GS150 vs REF150 SE


Hi all. 
Has anyone compared those 2 units. Are they sonically identical. There are 10 GS for sale here on agon.
I am considering replacing my Classic 120 monos (modded by GNSC circa 2005) with either one.
My speakers are Verity Audio Parsifal Encore. An ARC dealer told me that I would be going sideways as the 120’s have more current “output” than the GS and REF which my Parsifal need. 

How do you determine the current output of a tube amp as manufacturers (tube or SS) do not spec those in their data sheet. Same dealer said to better my 120’s I should consider a stereo SS amp in the 200w/ch range or go with ARC REF250 SE. I can not sport the funds for the 250’s and would like to stay with tubes (fewer than the 120’s and 250’s) as I have a REF3 LE and REF2 phono (also modded by GNSC circa 2010).
Food for thought!!!
smoffatt

Showing 1 response by jonaiken

I have listened to the Ref 150SE extensively and owned the GS150 before moving up to the Ref 250SE’s. The Ref 150SE is a better sounding amplifier and was magical with the Wilson Alexia II’s in a recent audition of the Wilson speakers. When my dealer replaced the Ref 150SE with the GS150 amp in the same listening session the magic went away. We were both surprised with the result especially since the GS150 is more expensive than the Ref 150SE. Maybe this is why the GS150 is being discontinued.