Audio-Technica ATH-AD700X Audiophile Open-air Headphones usb-b male With the driver unit

With the driver unit

With this DAC

There is also a slight boost in the lower-end as well

There is an aperture on the back of the housing which act to extend the reproduction band of low frequencies

The Performance 820 comes with a 1

Audio-Technica ATH-AD700X Audiophile Open-air Headphones usb-b male With the driver unit53mm Driver Open Back Dynamic Headphones Audio Technica ATH AD700X Audiophile Open air Headphones Introducing Audio Technica ATH AD700X Audiophile Open air Headphones. With a lightweight honeycomb aluminum casing, these open air headphones produce no sense of pressure on the ears, offering a completely natural listening experience. Newly designed 53 mm drivers with bobbin wound CCAW voice coils deliver spacious sound with superior highs and mids. The