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-9110 Review | The Master Switch
Onkyo a-9010 Integrated amp / DAC Amplifier NICE Photo #4412374 - US Audio Mart
A-9010 Integrated Stereo Amplifier
Onkyo A-9010 vs Onkyo A-9050. Which is the Best? - BestAdvisor.com
Onkyo A-9010 Review - Bass Head Speakers
Onkyo A-9010 Stereo Integrated Amplifier for sale online | eBay
Onkyo A9010 is one of the best sounding budget amps we've ever heard - Audio Affair Blog