Bryston 4B³ (4B Cubed)
Stereo Power Amplifier
Power Amplifier$6,795Manufacturer list price
Specifications
- Type
- Power Amplifier
- Description
- Stereo Power Amplifier
- Topology
- Class AB, discrete, dual-mono, independent power supplies per channel, Salomie input circuit
- Signal path
- Analog
- Channels
- 2
- Channel format
- stereo (dual-mono)
- Form factor
- Component chassis, 17" or 19" non-rack faceplate; PRO version adds 19" rackmount dress panel with rear channel trim pots (-14 to 0dB)
- DSP
- no
- Power (W)
- 300W/ch @8ohm; 500W/ch @4ohm
- Frequency response
- <1Hz-100kHz -3dB
- Back design
- Rear XLR/RCA inputs, binding posts, DC trigger, optional PRO rackmount dress panel with trim pots
- Country of manufacture
- Canada
Details
Controls: Rear switchable gain (23dB/29dB); PRO version adds rear channel trim pots
I/O: Balanced XLR and single-ended RCA inputs; DC trigger for automation
Notable use: Bryston's flagship-recognized stereo reference amp; continuously produced since 1978 (this is the current Cubed generation); PRO rack version used in studio/install systems
Notes: Price is dealer/street MSRP (not published on bryston.com), sourced from a 2024-era retail listing - flagged. THD+N <0.005%; noise floor -112dB RCA/-117dB XLR.