…”My initial impressions of the HA-160 are really favorable. Actually I’m blown away. The sound stage is so wide now I felt like there was a stereo expander in this thing. I’ve only burned it in for about 20 hours so far but it’s already the biggest step-up to sound quality I’ve ever heard through headphones. It powers my K701’s at very low volume while still sounding huge”…

Full review: http://www.head-fi.org/forum/thread/553241/i-ve-got-a-1000-to-blow-tell-me-what-to-buy/30#post_7500355