Bryston4B3 (Cubed series) StereousedBryston 4B-3 (Cubed series) StereoCurrent Top Series Bryston 4B Cubed Dual-Mono / Stereo Reference 300 into 8 ohms Amplifier, one of Weinhart Design's Amplifier References. As they are back ordered, we are offering a boxed one like...4556.00

Bryston 4B-3 (Cubed series) Stereo [Expired]

no longer for sale

Current Top Series Bryston 4B Cubed Dual-Mono / Stereo Reference 300 into 8 ohms Amplifier, one of Weinhart Design's Amplifier References.

As they are back ordered, we are offering a boxed one like new "latest & greatest" with warranty from a authorized dealer a Store Demo available in Silver like new Demo with warranty. Currently on back order for months. Please call for details.

Also we are here by appointment to audition the best sounding amplifier we have ever heard at Ambrosia Audio (previous company) & Video & Ambrosia the 28B-3 100 watts into 8 ohms. Please call for details.


  • Balanced XLR and Single ended RCA input
  • 2 Channels each with fully independent power supplies including transformers
  • 300W into 8 ohms (and up to 500 into 4 ohms) per channel
  • The patented Salomie circuit found in all Cubed Series amplifiers
  • Switchable gain (23dB or 29dB)
  • Fully convection cooled means no noisy fans
  • Machined and anodized aluminum enclosure and dress panel
  • Less than 500mW standby power consumption
  • SoftStart microprocessor controlled startup sequence won't trip circuit breakers
  • DC trigger for automated turn on and turn off
  • Legendary Bryston 20 Year Warranty

A rarified few components in audiophile lore have become so ubiquitous that nearly every music lover once had, lusted after, or if they're really lucky, currently owns one. One such legend is the Bryston 4B. This product has been manufactured continuously (though often refined) since 1978. Currently this venerated amplifier is on its 6th generation, and it's never been better. Now rated at 300 watts per channel into 8 ohms, (and upwards of 500 into 4 ohms), this true dual-mono amplifier is powerful enough for practically any speaker, yet it's priced to remain within reach. The degree of clarity, power, nuance, and outright truthfulness of this amp is stunning. If you've always wanted one, maybe now is just the right time.

Dimensions Inches: 17 or 19 W x 6.3 H x 15.5 or 17.75 (with front handles) D
Weight 42 lbs | 19 kg
Frequency Response: <1Hz - 100kHz: -3dB
THD+N (20Hz-20kHz @ Rated Power, 8Ω): <0.005%
Power Output (per channel): 300W @ 8Ω | 500W @ 4Ω
Noise: RCA: -112dB
  XLR: -117dB
Input Impedance: Unbalanced 7.5kΩ
  Balanced 30kΩ+ / 6kΩ-
  Manuel available @:'s%20Manual-2016-03-09.pdf

It is best to call David and visit: with questions or come to our Los Angeles Showroom 310-472-8880 or on my cell after hours and weekends 310-927-2260 any time from 10AM - 7PM PST.

Weinhart Design has lots of other items new and used and if you’re in Los Angeles or visiting please accept my invitation to experience our World Class Audio Showroom and please visit our web site @

We accept payments by Bank Wire Transfers without fees and is the only form of payment on all sales out of the U.S. and Canada. 

We prefer this method of payment and also makes shipping to addresses other than billing agreeable. VISA, MC and Papal are gladly accepted within the U.S. and Canada as long as the charge is approved and shipping to the billing address is to the one on record and plus 3% to cover card service costs. 

Please call me directly in my world class showroom in Los Angeles weekdays @ 310-472-8880 or any reasonable time on my cell including weekends @ 310-927-2260 and I can answer your questions and help you with all of your new and pre owned needs. 

Changing the Way You Listen,

David Weinhart   
President & CEO email:  [email protected] 

 The Audio and Video Experts 

Visit our Weinhart Design The AV Experts STORE:

2337 Roscomare Road, Studio #1 

Los Angeles, California 90077 
(Showroom) 310-472-8880 
(Cell) 310-927-2260 10AM-7PM West coast time 



member since February 2006

Weinhart Design  Verified Dealer

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