Pair your reference-class headphones with this Sennheiser headphone amplifier. It delivers accurate, clear playback for analyzing rhythms effectively, and it offers a sampling rate up to 384kHz for high-resolution audio. This Sennheiser headphone amplifier is compatible with a variety of digital and analog sources, including XLR, RCA and USB for versatile use. | Sennheiser | | HDV 820 Digital Headphones Amplifier | Black | Best Buy