I'm trying to put together a system on bargains I can pick up from on
line dealers, Ebay etc. OK I know it's not the right way to go about
things, but that's how I'm doing it...

I have an odd system. All my CDs are now stored as uncompressed files
on my PC. As a DAC/preamp, I'm using a quite old Sony ES processor.
This will constitute my front end.(Through my Stax earspeakers, the
sound is awesome.) On a whim I bought a pair of Dynaudio 42 speakers
but am now left with needing a power amp. I've always quite fancied a
Quad, and my price limit is about £300. Would say a Quad 99 be a good
match? (They seem to go for about this on Ebay). Or could I get away
with something cheaper? Any advice welcome.