Replacement Amp For Audio Research Classic 60


Very pleased with my System which is Turntable based and consists of the following;

Audio Research Classic 60 Tube Amp.

Audio Research LS5 MKIII Pre-Amp.

Herron VTPH-2A Phono Stage.

ProAc Response 2.5 Speakers.

I have owned the ARC Classic 60 Tube Amp since New it has been that long. Scott Frankland formerly of MFA has changed all of the important Caps.

Fearful due to Age that I need to research a Replacement Amp in either Solid State or Tube form but here is the catch; It needs to fit in a Rack so the Dimensions should be 19" Wide Max X 8" (Give or take High) X 16" Deep.

ARC LS5 MKIII has Balanced Outputs but I can go to Single Ended since there is a Switch on the MK III for Balanced or SE. I am running it SE at present to the ARC Classic 60.

My musical tastes are Classic Rock and Folk with some Classical.

In my research the one that has caught my eye is the Pass XA25 but I am truly not sure how this would be with the ProAc’s. I would hate to buy this Blind. I also liked the Luxman 509X very much but I really do not need an Integrated. These two Models are mentioned to give an idea of Price Range also.

Any suggestions would be appreciated.

Enter your text ...
djohn
I looked up the ARC D115 MKII and it appears to be a nightmare to Bias so I need to pass on this recommendation but it was appreciated.

The tube biasing is no more complicated than any other push pull tube amp, 65mA each output tube, done by the user with a meter. 

Yes there are other once in a "blue moon" adjustments, AC and DC balance (not super critical AR's words) if you want to get into those too, that's what makes this amp one of the push pull tube legends.
http://www.audioresearch.com/ContentsFiles/D115_Manual_Schem.pdf

Cheers George 
D115... not just the bias which is outright dangerous to adjust due to lack of space.    The diff amp driver balance of the 6FQ7s takes a lot of patience to tweak whenever you swap small tubes.  2 meters each
with fine clips required.