Bryston BHA-1 Headphone Amplifier

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“Regardless of the phones you choose, the Bryston BHA-1 Headphone Amplifier will impress you with its ability to throw a soundstage that is both wide and deep. Thanks to its big power supply, the BHA-1 not only provides fantastic bass response, but also a low noise floor. The tonal quality, versatility as a headphone amplifier and the fact that it makes a killer preamplifier are three great reasons why the Bryston BHA-1 Headphone Amplifier deserves one of our Exceptional Value Awards for 2013.”
– Jeff Dorgay, Editor, Tone Audio, 2013

“I know it’s really soon to give a real opinion but the initial impressions of the Bryston BHA-1 Headphone Amplifier are really, really favorable. The sound is so robust, full bodied yet clear, and detailed but non fatiguing. Simply great sound from top to bottom.”
– Steve, Audio Aficionado (read the review) 

Few headphone amps offer the level of versatility, fine sound, input and output options, and overall rock-solid reliability of the Bryston BHA-1. Combine it with a good fixed-level DAC and you have the makings of a most excellent desktop playback system.”
– Stephen Stone, (read the review)

Bryston BHA-1 Headphone AmplifierBryston BHA-1 rear view

Bryston BHA-1 Headphone Amplifier


The Bryston BHA-1 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 Headphone Amplifier 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.

bBryston BHA-1 Headphone Amplifier 2Bryston BHA-1 internal view

– Balanced Dual mono circuitry
– High Quality Noble Stereo Volume control – laser trimmed
– Left/Right Balance Control
– 6 Fully discrete Class A Bryston operational amplifiers
– Balanced outputs – 4 pin stereo and dual left/right 3 pin outputs
– Stereo ¼ inch single ended outputs
– 14dB or 20dB of selectable gain available
– All input and output connectors are Gold plated
– 10k input impedance
– Multiple headphone drive capability

– Available with Silver or Black Faceplate (2U)
– 17” or 19” Faceplate available
– Rack Mountable available only in 19″ Black
– Internal or External MPS-2 Power Supply (see MPS-2 Power Supply in Other Products)
– Locking mechanisms on Balanced XLR connectors
– Female or Male Balanced XLR output connectors



• Harmonic Distortion: Less than .003 at 32 ohms at 100mW 20Hz to 20KHz.
• IM Distortion: Less than 001%
• Signal to Noise: Greater than 105dB
• Frequency response: 20 to 20KHz plus or minus .1dB
• 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 Jack
• Control: Remote Trigger Input ( 5 – 12V AC/DC @10mA)
• Weight: 8lbs (3.6 kg)
• Dimensions: (H) – 3.125 inches x (W) 17 or 19 inches x (D) 11.25 inches
• HI-Z load: 20 Volts into 600 ohms (667mW) at 001% THD + N at 20-20K
• Low-Z load: 4 volts into 32 ohms (500 mW) at 001% THD + N at 20-20K
• Maximum 6 Watts per channel into 32Ohms (at 1% THD)
• Rated at 500 milliwatts per channel into 32 Ohms