Years ago I purchased four Dyanco A50 speakers, two PAT-4 pre-amps, and two DyancoST-120 amps. I used them with two speakers stacked on a side for years until one of the ST-120s died. Rather than fix it I purchased an NAD C355BEE (thanks to the excellent recommendations here) around 2008 and since it had a preamp and could drive all four speakers it left me with some spare equipment. I had a pair of A-35 speakers so I moved the remaining ST-120 and one PAT-4 into my den as a secondary stereo system and for what it is, it has worked well since then.

Recently that second Dyanco 120 is beginning to fail (very noisy) and I am now completely out of 120s so I would like purchase a replacement amp for the den setup. I have not been keeping up with technology and when I went to look for what is now available I found a lot of Class D amplifiers that I do not recall seeing before and for not too much money, i.e. $50 to $100. I have been happy with the 120 so “as good as” is all I am looking for. I do not need something like the NAD. As I said, it is not my main listening system so I do not need a big increase in performance to be happy and I would just as soon keep the PAT-4 so I do no want another preamp/amp combo.

The bottom line is would these inexpensive class D amps be suitable and do you have any recommendations? The claims for some of them do not seem very realistic and I think one even seemed to deliver more power than what it took in which would be a good trick.