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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Oopsygypsy
Fort Morgan, US
★★★★★ 5
Works Great & Very Practical for Indoor Potty Training
Pattern Name: Detachable high wall
I really love this pee pad tray. We have a similar one from another retailer that has worked well, and I wanted a second tray for our multi-story home. My puppy had no trouble using this right away since he’s already trained to use a pad when we’re not able to take him out. The design keeps his paws dry, which I appreciate, and it even came with wee pads included. The splash guard is a nice touch for male dogs my puppy isn’t lifting his leg yet, but it will definitely be useful later on. Just a note: if your dog tends to have softer stools, cleaning the small holes in the tray might take a little extra effort. For us, that hasn’t been an issue, and the tray is easy to rinse off when needed. Overall, this is a much cleaner and more reliable option compared to indoor grass pads or loose training pads that some puppies chew up. I’m really happy with it and would recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
E
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euroryde
Draper, US
★★★★★ 5
Reliable, No‑Mess Pads That Actually Work
Size: X-Large, Style: 40 Count
I’ve tried a bunch of different puppy pads, but these Amazon Basics ones are easily the most reliable. The 5‑layer design really does make a difference—no leaking, no soggy spots, and the quick‑dry top layer keeps my puppy from tracking wet footprints around the house. They absorb way more than I expected, and the plastic backing has never let anything seep through to the floor. The size is perfect for daily training, and the pads stay flat instead of bunching up. My puppy took to them right away, and cleanup is super easy. For the price and the quality, these are honestly the best value pads I’ve found. Highly recommend for puppies, small dogs, or even senior dogs who need a little extra help.
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Reviewed in the United States on March 29, 2026
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bchlvr
Los Angeles, US
★★★★★ 5
No leak pads
Size: Regular, Style: 50 Count
No leak pads, good quality, thickness is good and decent price.
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Reviewed in the United States on May 14, 2026
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Susan E.
Lexington, US
★★★★★ 5
Price and product doing its job well
Size: Regular, Style: 50 Count
Perfect size and absorbtion is good.
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Reviewed in the United States on May 18, 2026
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mandee
Omaha, US
★★★★★ 4
They're okay-ish. Not suitable for a lot of liquid.
Size: Regular, Style: 100 Count
I use these for my opossums. They work okay-ish, but I continue to use them for the quantity and price. They're not very large animals. Make sure you are changing them out after a single pee. These really can not handle a lot of liquid. My girls both refused litter training, and so puppy pads are my only option. If your animal has large pees, I do not recommend these because it will not be able to absorb it all, and you're gonna have a mess! Thats the word I have been looking for. They can't absorb a large amount of liquid.
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Reviewed in the United States on April 26, 2026

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