BRYSTON

28B

Mono amplifier, 1000W into 8Ω, 1800W into 4Ω, balanced XLR and RCA inputs, convection cooled, dual binding posts, Salomie circuit, 93 lbs, <0.005% THD


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Description

The Bryston 28B³ (Cubed Series) Mono Amplifier is a flagship monoblock powerhouse, engineered to deliver both immense output and refined musicality. With an astonishing 1000 watts into 8 ohms and up to 1800 watts into 4 ohms, the 28B³ is built to effortlessly drive even the most demanding loudspeakers with commanding control and clarity. Whether you're building a reference-grade stereo system or a state-of-the-art home theater, this amplifier exemplifies Bryston's philosophy of sonic excellence at every watt all while offering precision, power, and musical integrity across the entire volume range.

At the heart of the 28B³ lies Bryston’s patented Salomie circuit, shared across the Cubed Series, delivering ultra-low distortion and improved clarity, especially in complex musical passages. The amp’s fully convection-cooled chassis ensures silent operation without fans, making it ideal for listening rooms and studios. A robust machined aluminum enclosure, available in silver or black with optional 17” or 19” faceplates, underscores the amp's premium build. Thoughtful features like balanced XLR and RCA inputs, dual binding post pairs, DC trigger control, and a soft-start microprocessor ensure smooth integration into high-end systems, while consuming less than 0.5W in standby. The legendary Bryston 10-Year Warranty completes the package, promising reliability and performance for years to come.

Features

Massive Power Output
Delivers up to 1000W into 8 ohms and 1800W into 4 ohms, effortlessly driving any speaker.

Exceptional Sound at All Levels
Engineered to sound equally impressive at low or high volume, true to Bryston's "first-to-last-watt" philosophy.

Balanced and Unbalanced Inputs
Equipped with both XLR and RCA inputs for flexible system integration.

Dual Speaker Outputs
Features dual binding posts for bi-wiring or easy speaker switching.

Convection-Cooled Design
Runs silently without fans, using a fully convection-cooled chassis.

Precision Engineering
Built with the patented Salomie circuit for superior clarity and control.

Low Standby Power Consumption
Draws less than 0.5W in standby mode to meet modern energy standards.

SoftStart and Trigger Control
Starts safely without tripping breakers and includes a DC trigger for automated power control.

Premium Build Quality
Machined aluminum chassis available in black or silver, with 17” or 19” faceplate options.

Legendary 10-Year Warranty
Backed by Bryston's renowned long-term reliability and customer support.

Specifications

General Specifications
Device Type: Monoblock Power Amplifier
Series: Cubed Series
Model: 28B³
Cooling Method: Fully Convection Cooled (Fanless)
Startup: SoftStart Microprocessor Controlled Sequence
Standby Power Consumption: <500 mW
Trigger: DC Trigger Input for Remote Power Control
Chassis Material: Machined and Anodized Aluminum
Color Options: Silver or Black Faceplate
Faceplate Sizes: 17" or 19" (Non-Rack Mountable)
Warranty: 10 Years (Bryston Standard)

Input/Output
Inputs: Balanced XLR, Unbalanced RCA
Input Impedance: RCA – 5 kΩ, XLR – 5 kΩ per leg
Outputs: Dual Binding Post Pairs

Power Output
Power at 8Ω: 1000 W
Power at 4Ω: 1800 W

Audio Performance
Frequency Response: <1 Hz – 100 kHz (-3 dB)
Total Harmonic Distortion (THD): <0.005% (20 Hz–20 kHz @ Rated Power, 8Ω)
Noise (RCA Input): –116 dB
Noise (XLR Input): –117 dB

Dimensions and Weight
Width: 17" or 19"
Height: 8.1"
Depth: 16.8" or 18.4" (with Front Handles)
Weight: 93 lbs / 42 kg

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