Bryston 4B³ Cubed Dual Mono Amplifier

Bryston Products Currently Have A 12 Week Lead Time

The Bryston 4B Cubed: The Legend, Perfected.

In the history of high-fidelity audio, a select few components achieve legendary status. The Bryston 4B is one of them. Since 1978, it has been the trusted powerhouse in countless recording studios and reference home systems around the world. For many music lovers, it is the definitive stereo amplifier—an icon of performance and reliability.

Now in its sixth and most advanced generation, the 4B Cubed represents the pinnacle of this storied evolution. It honours the legacy of its predecessors while elevating performance to a breathtaking new standard. The latest iteration is more powerful, more transparent, and more refined than ever before, reaffirming its position as the benchmark against which others are judged.

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 20-year warranty.

Available Options:

• Finishes: Available with a silver or black anodised faceplate.
• Sizes: Standard 17” width or a 19” width which includes front-mounted handles.

PRO Version: A professional rack-mountable 19” version in black, which adds rear-panel trim potentiometers for precise channel level matching.

Specifications