Bryston’s BHA-1: The Balanced Headphone Amplifier

• 2 Ohms output impedance for each op-amp driver.
• 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), ?” Headphone Jack?
• Control: Remote Trigger Input ( 5 – 12V AC/DC @10mA)?

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

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