SKU: 3184307478

Bryston 4B³ Cubed Dual Mono Amplifier

Sale price$5624.55 Regular price$6249.50
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Description

Bryston 4B³ Cubed Dual Mono AmplifierBryston 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 amplifieran icon of performance and reliability. Now in its

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

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)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3184307478

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DHK
Waukegan, US
★★★★★ 5
Good Fit & Quality
Size: 14-22 2.0L hybrid, Size: 14-22 2.0L hybrid
This set which includes both the engine and cabit air filters are of good quality and fits my 2020 Honda Accord Hybrid well. The engine filter feels sturdy and well built. The cabin filter, although without charcoal infusion, has many folds which is more important when it comes to effective filtering of particles. The installation was easy and for the set, this set offers a good value.
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Reviewed in the United States on May 16, 2026
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ard78641
Belleville, US
★★★★★ 5
Perfect fit!
Size: 14-22 2.0L hybrid, Size: 14-22 2.0L hybrid
This is a good value for a combo package which includes a cabin air filter as well as the engine air filter. Both filters were a perfect fit in my 2019 Honda Accord hybrid. The cabin air filter airflow direction is clearly labeled and the pleats are sturdy. Installation was super easy- just drop the glove box cover, pop the cabin filter cover plate, pull out the grungy old filter and pop in the new one. Easy peasy. The engine air filter is also a perfect fit. No complaints or concerns here.
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Reviewed in the United States on May 10, 2026
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GreatDanes4U
Whiting, US
★★★★★ 5
K&N Filters are worth their cost in Filtration and Longevity!
Size: 8.3" x 8.4" x 0.6"
Tight fit, never needs replacement, only cleaning and reoiling. It has taken many miles to allow flow to resume after oiling for initial installation. Cold air intakes on numerous vehicles! I Love K&N filters for better filtartion and eventually cost savings!
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Reviewed in the United States on June 25, 2025
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Oscar Miranda
Dallas, US
★★★★★ 5
Excelente producto
Size: 8.3" x 8.4" x 0.6"
Excelente producto
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Reviewed in the United States on March 27, 2026
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L&L Dangerfield
San Leandro, US
★★★★★ 5
Super Quality & Easy to install
Size: 8.3" x 8.4" x 0.6"
I've always loved K&N filters! This is no exception. As soon as you pull it out of the box, you feel the heavy duty quality and understand why these can last a lifetime. I highly recommend this and all K&N products. I replaced the in-cabin filter with this K&N filter as well as the engine filter on my 2004 4Runner Sport with the K&N option. I always place the sticker that comes in the box, right on or near the filter housing. Its a great reminder to clean and service the filter periodically. Don't waste any more like looking or researching, just buy this filter. You'll love it!
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Reviewed in the United States on July 7, 2020

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