The Onkyo A-9010 is the single best amplifier I've heard for anywhere near the price. IMO, it should be the default answer to the “budget amplifier” question that gets asked so often :
Onkyo A-9010 Stereo amplifier 2 x 44 W Black | Conrad.com
Onkyo A-9110 Integrated Stereo Amplifier — Safe and Sound HQ
ONKYO A-9010 Integrated Amplifier 100V | eBay
Z Review - Onkyo A9010 [The Return of Real Amplifiers] - YouTube