Sennheiser HD 820 is Sennheiser's top of the line headphone, a flagship closed back design. This bundle pairs it with Sennheiser's ultimate source - the HDV820 dac and headphone amp. The HDV820 is optimized for the HD820 headphone, using the 4.4mm output you will experience an ideal balanced amplifier match.
HDV820 has two analog inputs, coax, usb and optical, for a huge range of sources. There are 4.4mm, 6.5mm and XLR outputs on the front for headphones as well as XLR outs on the rear to go to a high end preamp or powered monitors.
HD 820 uses a unique glass cover and absorbers to control airflow and reflections in the headphone, in order to provide the most open, wide and accurate sound possible while providing isolation.
HD 820 is similar to the HD800s, but with a different housing, deeper, more isolating ear pads, a very posh black stained wood storage case and two cables - a 6.5mm and 4.4mm, 3m cables are both included. The cables are precisely matched in impedance and low capacitance, making them the perfect accessories for the HD 820.