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experience with Threshold SA/2e or S/500 amps?

does anybody have experience with the older threshold sa/2e monoblocks or S/500 stereo amp? either owning the amps or in comparisions to new amps like: classe, mcintosh, pass labs? i will be using them to drive a pair of Totem Mani 2's. The SA/2e's are rated at 100 watts class A which might be a little low on power for the mani's. I have never owned a pure class A amp and maybe these amps have the necessary erserve power for the mani's. the s/500 would have enough power but they are a class a/b amp. i'm looking for an amp that are warm sounding with enough power to control the mani's. any thoughts?
rbstehno

Showing 1 response by georgehifi

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georgehifi
10,312 posts
 
rbstehno OP

I owned a Threshold S500 and they are a great amps.
They like to be biased hot into Class-A so the heatsinks are at about 60c after 2hrs this makes them sound sweet.
Nelson said to me once, palms of hands on the top of the heatsinks and you have to remove them after 6 odd seconds is around 60c (brick layers need not apply).
Here is a circuit diagram and adjustment measurements I have in case you need them.
https://ibb.co/JjS2N72
https://ibb.co/GxrPxK1

Cheers George
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