Home Slickdeals Sennheiser HDVA 600 Headphone Amp + Beyerdynamic DT-880 600 Ohm Headphones ... Slickdeals Sennheiser HDVA 600 Headphone Amp + Beyerdynamic DT-880 600 Ohm Headphones $799 + Free Shipping By ARCOM - 1 October 2017 250 0 SHARE Facebook Twitter Go to the deal page: Sennheiser HDVA 600 Headphone Amp + Beyerdynamic DT-880 600 Ohm Headphones $799 + Free Shipping