A friend of mine has a couple of A/D/S PQ20 (4x100) amps that he would like to sell to me. I have no idea how much they are worth and neither does he. I have seen a pretty big swing in prices in forums over time (just found a few sales on different forums). Some have sold for a bargain price, but some for more than I would pay for a current 'decent' amp. I trust that he has taken good care of them and I am also pretty sure that he did not buy them new.
What do you think would be a fair price? These are the made in Japan ones.
According to my buddy they are the PQ20.2, he has three or four that he wants to sell. Look out for the post in the classifieds. I will post them on his behalf as he is not very internet saavy, it seems.