2. amps-preamps
  3. 148293-4377

Counterpoint SA-5000 with two monoblocks Threshold SA2e

Hello folks,
With heavy heart today I heard from the Audio Research customer service that Fets for the older SP premaps are no longer available. You could personally use a transistor selection device and measure each Fet out to its specs, but it would cost you and arm and a leg and probably more than AR preamps were now.

Has anyone out there obained a Counterpoint premap and used a Threshold S or SA series power amp and got good results out of it. Any problems by cmbining these two brands?
I am facing output impedance to input impedance problems for the pre and power amp. I assume out there that noone has combined these two brands.
Best,
Stefan
stefanovitch

Showing 2 responses by johnsonwu

johnsonwu
469 posts
 
No longer available from
audio research’s stock pile but still available everywhere on Mouser Digikey Newark and Allied.  
“but it’s not Audio Research made to spec?!” Worshippers whine on.  
johnsonwu
469 posts
 
The SP10 is a full tube preamp the FETs are used for the last-mile regulation of B+ for each triode. You wont have to match them as they are not in parallel. Whoever tells you otherwise just wants to fleece you bad. I recently bought a few of them to repair a friend's unit.
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