Thanks @pwstereo - I try to be a skeptical of the big bargains, so it helps to see some positive feedback. System Audio speakers at Rio also seem to be at bargain prices, but I can't find a review to validate their sound.
Thanks for detailed reply @Craig Taplin!
I am looking to set up for dedicated stereo listening. Most of the available amps, on the second hand market, seem to be AV receivers for 5.1 or 7.1 home theater set-ups. I have basically been looking for the lowest cost that I can get the following specs, from a device that I can find reviews of:
-THD = <0.5%;
-SNR = >90
-per channel wattage = >70W .
I am keen to hear if you have differing advice to that.
The speakers will be homed in a small room, maybe 3x4m. It's a brick box, so I expect that I will need to be mindful of the bass. I was thinking of getting bookshelves, and adding a sub-woofer later, if the sound allowed for it. Bookshelves like the Polk S20's, Q Acoustic 3030i's, Elac Debut 2.0 B6.2's, and Klipsch R41-M's are what I have looked at (subject to the availability of the last two). Open to anything with a good 'sound/$' value under a thousand though.