Bryston Balanced Headphone Amplifier - BHA-1

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.

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) 

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

Options:

• Available with Silver or Black Faceplate (2U)
• 17” or 19” Faceplate available
• Rack Mountable Ears available
• Locking mechanisms on Balanced XLR connectors

Physical:

• 2.75” (2" W/O feet) H x 17” W x 12.25” D (17" faceplate)
• 69.85mm (50.8mm W/O feet) H x 431.8mm W x 311.15mm D (431.8mm faceplate)
• 2.75” (2" W/O feet) H x 19” W x 12.25” D (19" faceplate)
• 69.85mm (50.8mm W/O feet) H x 482.6mm W x 311.15mm D (482.6mm faceplate
• 13.25 Ibs

Specifications:
2 Ohms output impedance for each op-amp driver.

Load @ 600 Ohms

• Hi - 10.9V Out @ 001% Power 200 mW
• Lo - 5.45 V Out @ 001% Power 50 mW
• Lo - 2.50 V Out @ 001% Power 10 mW
• Lo - 788 mV Out @ 001%¹ Power 1 mW

Load @ 300 Ohms

• Hi - 10.8 V Out @ 001% Power 390 mW
• Lo - 5.40 V Out @ 001% Power 50 mW
• Lo - 1.79 V Out @ 001% Power 10 mW
• Lo - 583 mV Out @ 001%¹ Power 1 mW

Load @ 80 Ohms

• Hi - 10.4 V Out @ 002% Power 1.35 W
• Lo - 5.20 V Out @ 001% Power 383 mW
• Lo - 887 mV Out @ 001% Power 10 mW
• Lo - 345 mV Out @ 003% Power 1 mW

Load @ 32 Ohms

• Hi - 9.65 V Out @ 0.150% Power 2.9 W²
• Lo - 4.84 V Out @ 002% Power 732 mW
• Lo - 578 mV Out @ 001%¹ Power 10 mW
• Lo - 185 m V Out @ 005%¹ Power 1 mW
• Lo - 4.00 V Out @ 001% Power 500 mW³