For Sale KSR PA50, Rivera Rockcrusher, Suhr RL

yeoldefortran

Active member
Cleaning up the pile of attenuators, loads, power amps and launching these three out for sale. All prices shipped CONUS F+F. Please add 3% if using G+S.

KSR PA50 - $675
KSR PA 50 that just got back from KSR with a brand new board. One of the better tube power amps on the market IMO. The negative feedback control is super useful and the the Top/Bottom (aka Presence and Depth) controls are effective.

I bought this unit used and had some issues with it. I sent it off to KSR who repaired it, though the chassis got a bit bent somewhere in the process. So inside it's been all taken care off by KSR but the front corners are a touch bent (see photos).

Rivera Rockcrusher - $420
One of the best attenuators on the market. Flexible, but very natural and totally passive. Works well over a huge volume range too.

Suhr Reactive Load - $260
Does what it says on the tin. One of the best reactive loads on the market, particularly for greenback-y tones.
 

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Last edited:
As the Rivera and Suhr are considered some of the best at what they do, gotta ask what's replacing them, if any?
 
Honestly I’ve just been using my St Rock React IR II. I don’t know that I’d say it’s “better” or “worse” but it suits me well enough as an attenuator and load. I think the Suhr is a better vintage sounding load and the rock crusher a better overall attenuator, but I just don’t need ‘em at the moment.
 
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