magkano ba budget mo? I've got a Gilmore Lite for my Audio Technica ATH-A900, although di talaga kailangan yung amp for my cans coz they are low impedance phones. the amp did help on tightening the bass, the soundstage is much bigger and the mids is more apparent now.

the ones you see on Ebay are mostly CMOY amps, which are very good starter amps. but if you're looking for more power, then I suggest visiting this site: www.headfi.org for more info.