Bryston 4B³ Cubed Dual Mono Amplifier

Bryston 4B³ Cubed Dual Mono Amplifier

Please note: Some Bryston products are built to order and can take up to 12 weeks. Speak to us for more information.

Few amplifiers in the world of high-end audio have earned the legendary reputation of the Bryston 4B. Since 1978, the Bryston 4B amplifier has powered professional recording studios and premium home hi-fi systems worldwide, becoming one of the most respected stereo power amplifiers ever created.

The latest Bryston 4B Cubed continues this iconic legacy with its most advanced design yet. Delivering exceptional power, remarkable transparency, and extraordinary sonic refinement, the 4B Cubed sets a new benchmark for high-performance audio amplification.

Engineered for discerning audiophiles and serious music lovers, the Bryston 4B Cubed combines immense dynamic capability with ultra-low distortion and superb detail retrieval, allowing your speakers to perform at their absolute best.

Whether paired with a reference two-channel hi-fi system or a premium home audio setup, the Bryston 4B Cubed delivers the authority, precision, and musical realism that have made the 4B name legendary for decades.

Authoritative Power, Unflinching Control: 

With a commanding 300 watts per channel into 8 ohms (and a colossal 500 watts into 4 ohms), the 4B Cubed offers limitless dynamic headroom. Its true dual-mono architecture, featuring independent power supplies for each channel, provides a deep, holographic soundstage and the authority to drive any loudspeaker with absolute conviction. From the most delicate nuance to the most explosive crescendo, the 4B Cubed remains utterly composed, delivering music with effortless realism and foundational bass control.

The Sound of Truth: 

This isn't just power; it's power guided by surgical precision. Utilising Bryston's patented Salomie circuitry, the 4B Cubed delivers a sound of stunning clarity and truthfulness. It adds no character of its own, serving instead as a crystal-clear window into the heart of the recording. The degree of detail, nuance, and sheer musical honesty is what has made the 4B a legend, and the Cubed version delivers it in its purest form.

The Bryston 4B has always been an aspirational component. Today, the 4B Cubed makes that dream more compelling than ever. If you've always wanted one, now is the perfect time to experience why this amplifier has remained the reference for over four decades. Backed by the legendary 20-year Bryston warranty, it's not just an amplifier—it's an heirloom.

Core Features:

• Legendary Power: A commanding 300W per channel into 8Ω and 500W into 4Ω.
• True Dual-Mono Design: Two channels, each with a fully independent power supply and transformer for ultimate channel separation and a vast soundstage.
• Versatile Inputs: Features both balanced XLR and single-ended RCA inputs.
• Exclusive Circuitry: Utilises the patented Salomie circuit found in all flagship Cubed Series amplifiers.
• System Matching: Switchable gain (23dB or 29dB) allows for perfect pairing with any preamplifier.
• Silent Operation: A fully convection-cooled design means no distracting fan noise.
• Legendary Reliability: Built to last and backed by Bryston's 10-year warranty.

Specifications: 

• Frequency Response:    <1Hz - 100kHz: -3dB
• THD+N (20Hz-20kHz @ Rated Power, 8Ω):    <0.005%
• Power Per Channel    300W @ 8Ω | 500W @ 4Ω
• Noise:    RCA: <-112db
• XLR: <-117db
• Input Impedance:        Unbalanced 7.5kΩ
• Balanced 30kΩ+ / 6kΩ-
• Weight    19 kg
• Dimensions    Cm: 43 or 48.3 W x 20.6 H x 39.4 D or 45.1 (with handles)