I was at a garage sale today looking at vinyl and the vendor mentioned he had an old amp if I was interested. I said I was and he pulled this old NAD out and said I could have it for $20-.
Got it home and plugged in but while it works it seems a little dull and doesn't seem to be pushing out anywhere near its rated 85 watts.
Electronics is my weak spot so I don't know what to look for and the only test equipment I own is a multimetre. Worth keeping and getting it worked on or is it just another piece of gear on the shelf in the shed?
If I do open the case what should I be looking for?
Got it home and plugged in but while it works it seems a little dull and doesn't seem to be pushing out anywhere near its rated 85 watts.
Electronics is my weak spot so I don't know what to look for and the only test equipment I own is a multimetre. Worth keeping and getting it worked on or is it just another piece of gear on the shelf in the shed?
If I do open the case what should I be looking for?
I never liked the sound of the Power Envelope NADs.A very 80s sort of punchy but dry and flat sort of sound.
I just opened up the case. At some stage one of the power transistors has been replaced, three look like the originals but one is a Toshiba 2N3055
PSU caps are very small; 6800uF and 85C but no sign of bulging; which is the only thing I know to look for apart from burnt spots on the board
PSU caps are very small; 6800uF and 85C but no sign of bulging; which is the only thing I know to look for apart from burnt spots on the board
Rabbitz has posted that he used to like this amp. So maybe they aren't too bad when working properly.
I've just seen the little button at the back, does switching from the 4R position to the 8R position actually make any difference? It was in the 4R position and my little speakers are nominally 8R and 5.6 Ohms DCR
I've just seen the little button at the back, does switching from the 4R position to the 8R position actually make any difference? It was in the 4R position and my little speakers are nominally 8R and 5.6 Ohms DCR
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