BeyerDynamic DT-990 600Ohm Headphones $179 or w + iFi Micro iDSD Headphone Amp / Dac $529 + free shipping By admin | August 28, 2017 8:37 pm EST 0 Comment deal$179 + free shipping w/ code POWERUPbundled with ifi micro idsd amp$529 + free shipping w/ coupon code c1177226237