I have a friend that is about to have triplets and trying to trade and sell off his gear while also downsizing. Almost a year ago after hearing a dual mono F5 I built and loving the sound, he went and bought a Threshold 4000a that had been restored/recapped with XLR inputs on the back.
I am working a trade deal with him now to help him get rid of some of his gear but I would like to try to find out who the repairs were done by as he did not know.
Would there be a way to look inside and know if Jon had his hands on the unit? And which current amp in the DIYAudio store does the 4000a sound most like? I have built an F4, F5, F6, Aleph J, M2x and Amp Camps.
I have a pair of YG Carmel speakers running off F4 mono blocks and a Balanced BA3 and would like to try out the Threshold.
I am working a trade deal with him now to help him get rid of some of his gear but I would like to try to find out who the repairs were done by as he did not know.
Would there be a way to look inside and know if Jon had his hands on the unit? And which current amp in the DIYAudio store does the 4000a sound most like? I have built an F4, F5, F6, Aleph J, M2x and Amp Camps.
I have a pair of YG Carmel speakers running off F4 mono blocks and a Balanced BA3 and would like to try out the Threshold.
You can get in touch with him in this thread if you like. His username is VintageAmp
Post some pictures of the inside if you can. I know he replaces power supply caps and I believe he rewires amps as an additional service. The parts and workmenship will likely explain who was in there.
As far as which amp sounds like it, that is a tough one. I believe Pass had a different mindset at Threshold than he did at Pass Labs and especially firstwatt. The threshold has I believe a BJT cascode output stage which is far different from the amps listed above.
Post some pictures of the inside if you can. I know he replaces power supply caps and I believe he rewires amps as an additional service. The parts and workmenship will likely explain who was in there.
As far as which amp sounds like it, that is a tough one. I believe Pass had a different mindset at Threshold than he did at Pass Labs and especially firstwatt. The threshold has I believe a BJT cascode output stage which is far different from the amps listed above.
