yotiao 0 Report post Posted March 6, 2008 Acclaimed PS Audio GCHA headphone amp Cutting edge gain-cell digital amplification - drives ANY headphones (except K1000), personally I find great synergy with Grado RS-1, AKG K501, Sennheiser HD650/HD600, ATH-W5000, and Ultrasone Edition 9 (if using right cables). It's very musical and smooth sounding. Analog and USB inputs (USB DAC) 1 year old, I am the first owner, and still have 1 year warranty by Kingsley. Excellent condition, rate 9/10 using Audiogon grading scale. Asking $1000. Original box, manual and AC cord still available. Audition is welcome, we can arrange. Reviews here: http://www.6moons.com/audioreviews/psaudio4/gcha.html http://www.audaud.com/article.php?ArticleID=1018 Some impressions here: http://www.sgheadphones.net/index.php?show...02&hl=mini+meet http://www.head-fi.org/forums/f5/ps-audio-...l-bliss-240650/ Thanks for viewing. Share this post Link to post Share on other sites