The Kingrex Headquarters HQ-01 is a headphone amplifier unit that retails for about $895. It is single ended, solid state, and two case design. I have listened extensively to a review sample for the past three or so months. In my opinion, the unit compares well to the Graham Slee Solo and is...

I currently own a recent version of the benchmark dac-1 and the hd-650, and was wondering whether its worthwhile for me to upgrade to a stand alone amp. I've mostly been using the dac-1 amp with stock cable. For a few months, I listened exclusively via a balanced headphile senn cable directly...

It looks like the latest revision for Xin's supermacro-3 is coming along well. Here's a link to some nice looking pictures. http://www.fixup.net/talk/topic.asp?TOPIC_ID=1279 I never thought a quarter could look so huge!

Hello, My budget is about $500. My current setup is M-Audio Sonica -> Total Airhead Amp 2004 -> ETY ER-4S. My sources are CDs. Normally, when I listen to music, the volume control knob on the airhead is turned so low, it is almost in the 'off position'. Otherwise, the music is too loud...