My present setup is a pair of Harbeth SHL5+ speakers, fronted with an Audio Research SP9/III preamp, Hafler DH-220 amplifier, Rega turntable w/Denon 301ii, Schiit Modi Multibit DAC. The sources will eventually need attention too, but the weak point right now is the amplifier. It's just not very transparent, nor is it particularly gutsy even though it's rated 150W/ch. I'd like improvements in both those departments. My budget is $2500-ish. The Hafler was a free amplifier, it was my brother's before it came to me when he died. It sat around gathering dust as a "spare" amp for more than a decade before being pressed into service. I was a little surprised and delighted that it worked at all. One possibility would be the Musical Concepts modification for the Hafler amp. It's a whole new circuit using the old chassis, power transformer, and output transistors. That would take care of the transparency, but I don't know if it will have any more welly. Hafler Amp This would come in well under budget. Some friends have suggested the Odyssey Stratos amp. Odyssey Audio: Stratos Stereo amplifiers. Call us (317) 299 5578. IN, USA. Odyssey Audio offer their products by direct sale only, and there's kind of a cult of personality surrounding Klaus Bunge, the man who makes them. I kind of favor a Threshold Stasis amp w/optical bias. S/300 would be about the right size, and these turn up frequently on eBay, but usually in the MkI or MkII version, which do not have the optical bias unless they were factory modified. Prices are all over the map, and they're old enough that a cap service may need to be added to the budget. I'm looking for alternative suggestions, anything I may have overlooked. There will be little opportunity to audition before purchase, there are no dealers with 2-channel audio on demo within five hours driving distance from here, so I'll probably have to just take a punt on something. Thanks for any observations or suggestions.