BeyerDynamic DT-990 600Ohm Headphones $169 or w + iFi Micro iDSD Headphone Amp / Dac $519 + free shipping By admin | September 26, 2017 3:38 pm EST 0 Comment deal$169 + free shipping w/ code POWERUPbundled with ifi micro idsd amp$519 + free shipping w/ coupon code c1177226237