dalethorn 0 Report post Posted February 26, 2014 This is my all-time favorite headphone amp (sans DAC). Runs 100 hours on a charge, and the rechargeable batteries are common AA NiMH cells. And it sounds very good. http://www.hifiheadphones.co.uk/forum/headphone-reviews/4011-electric-avenues-pa2v2-2-headphone-amp-review.html Share this post Link to post Share on other sites