Bryston 4B³ Dual-Mono Power Amplifier – Silver, 19-inch with Handles

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The Bryston 4B³ is the sixth generation of one of high-end audio’s most enduring power amplifiers. This new silver example features the 19-inch non-rack-mountable faceplate with front-mounted handles. Its true dual-mono design gives each channel an independent power supply, combining effortless power with the clarity, control, and musical nuance for which Bryston is known.

Rated at 300 watts per channel into 8 ohms and up to 500 watts per channel into 4 ohms, the 4B³ is capable of driving a wide range of demanding loudspeakers. Balanced XLR and single-ended RCA inputs, switchable gain, silent convection cooling, SoftStart circuitry, and Bryston’s 10-year warranty make it equally suited to reference two-channel and high-performance theater systems.

Specifications

• Condition: New

• Finish: Silver

• Faceplate: 19-inch, non-rack-mountable

• Handles: Front-mounted handles included

• Configuration: True dual-mono, 2-channel power amplifier

• Power output: 300 W per channel into 8 ohms

• Power output: Up to 500 W per channel into 4 ohms

• Inputs: Balanced XLR and single-ended RCA

• Gain: Switchable, 23 dB or 29 dB

• Frequency response: <1 Hz–100 kHz (-3 dB)

• THD+N: <0.005% (20 Hz–20 kHz at rated power into 8 ohms)

• Noise: RCA -112 dB; XLR -117 dB

• Input impedance: Unbalanced 7.5 kΩ; balanced 30 kΩ+ / 6 kΩ-

• Cooling: Fully convection cooled; no fans

• Standby consumption: Less than 500 mW

• Dimensions: 19 W × 6.3 H × 17.75 D inches with handles

• Weight: 42 lb / 19 kg

• Warranty: Bryston 10-Year Warranty