Best Used under $300 2 Channel Amp

amc makes a perfectly serviceable, bridgeable 2 channel ss amp which is generally available for $200 or so on ebay. i also see a bunch of used b&k st140 in that range. i'd also look at marantz ma monoblocks, which you should also find used within your budget. for a cheap preamp, adcom gtp or b&k are good products.

Adcom would be my first choice. But NAD, B&K, and even Rotel can be worht a look as well. Older Carver's often's have issues and I would avoid them. Good luck.

There is a very nice Cambridge 540R v2 6.1 receiver for sale here for $220. I have the 1st version and it has a very nice warm sound and great as a HT too.

i second the adcom vote. i don't know the nht speaker, but you may want to consider the adcom 535 if 60wpc is enough. I always thought the 535 was the best sounding of the three (535/545/555), and I owned all three at one time (all mk 1 versions).

I sold Adcom for 6 years.Good sound for the buck.B&K is also good.NAD I am not sure about the series.Never a Carver guy.Newer version of amps pre's your talking those names.One question is how much use they got and if older if caps have dried out.I have some older PS stuff that I use for second system.The 4.6 was an $800 pre that goes for $250 give or take.The amp I have has plenty of current at 100 wpc and went for $1200 and now goes for $300-400.But again with older equipment your going to get better deals but age and use means heat and potential repair if not well built.I notice there is a Bryston 3B up now on 'Gon for asking of $400.There is a reason they gave 20 a year warranty.They are built like tanks.Maybe you could ask a better price.If you want FM the Adcom pre/fm combos are hard to beat at low price.
G'luck