Advancing our tradition of unmatched audio performance and functionality, the BHA-1 Balanced Headphone Amplifier is Bryston’s reference amplifier solution for the finest listening experience from your headphones. The BHA-1 is compatible with both traditional (single-ended) and balanced headphones.The advantage of powering each headphone driver (right and left) with two amplifiers configured in balanced or series mode is a doubling of the signal voltage to each speaker. This design configuration has been the foundation of Bryston’s legendary 7B, 14B and 28B amplifiers and now headphone users can experience the same dramatic resolution from the BHA-1. The Bryston BHA-1 employs the vast benefits of balanced amplifier designs that are inherently clean and stable especially when there is a demand for higher power and/or a difficult load to drive.Because most headphones are not balanced devices, Bryston provides a traditional (unbalanced) ¼-inch input on the BHA-1 as well as inputs for balanced headphones. Bryston will also provide modifications to some headphone models to make them compatible with a balanced output configuration, along with an adapter cable assuring backwards compatibility to all traditional (unbalanced) headphone outputs.Inputs:Balanced XLR Pair, Single Ended Pair (RCA), 3.5mm Stereo Mini Jack (MP3 Player Source, etc.)Outputs:Balanced XLR (4 Pin Stereo), Balanced XLR Pair (3 Pin Left/Right), ¼" Headphone JackControl: Remote Trigger Input ( 5 - 12V AC/DC @10mA)Power: Maximum 6 Watts per channel into 32Ohms (at 1% THD) Rated at 500 milliwatts per channel into 32 Ohms Features: Balanced outputs Balanced dual mono circuitry Left/Right balance control Six fully discrete Class A Bryston operational amplifiers 14dB or 20dB gain 10k input impedance High quality noble stereo volume control (laser trimmed) Gold plated input and output connectors Multiple headphone drive capability