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Bryston 7B Cubed Mono Amplifier
7B³ mono amplifiers are truly special. Though they don't look much different, they're a big step up from the venerable 4B³. The power supply for this amplifier is built around a specially wound transformer that is substantially more efficient than normal. With twice the power available, they can drive all but the most brutal loads to lifelike levels. But even at whisper quiet levels, they reveal detail and nuance in your recordings that you never knew existed until now.
Features
- Balanced XLR and Single ended RCA input
- Dual binding post pairs
- 600W into 8 ohms (and up to 900 into 4 ohms)
- 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 10 Year Warranty
Options
- Silver or black faceplate
- 17” or 19” faceplate (non-rack mountable) 19" comes with front mounted handles
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Professional Reviews 89/100
Nicely Roasted
Sound Quality
91/100
Build Quality
88/100
Value for Money
85/100
Bryston’s 7B Cubed delivers effortless high-power control, pairing 600 watts into 8 ohms with a notably refined, low-noise presentation. The Absolute Sound highlights its extended, stable bass under pressure and unusually expansive stage width and height—an authoritative monoblock for demanding loudspeakers and large-scale music.
What Reviewers Are Saying
Pros
Extended, stable bass and composed performance during demanding musical passages.
Exceptionally broad and tall soundstage for its solid-state class.
Refined, relatively low-noise sound with an easy, controlled presentation.
&
Cons
Soundstage depth is competitive rather than a standout strength at this price level.
SOUND QUALITY PERFORMANCE 91/100
The available listening coverage describes a more refined Bryston presentation, with low noise and a notably easy, composed manner on demanding music. Bass remains extended and stable, while the stage is especially expansive in width and height.
Transparency Resolution
91/100
The Absolute Sound says the Cubed generation brings a more refined overall sound, and specifically links its relatively low noise to an easy presentation. That points to a clean, composed window into recordings rather than the more overtly forceful character associated with earlier Bryston designs.
Tonal Balance Musicality
89/100
The review characterizes the sound as more refined and praises its sense of ease, suggesting a controlled and mature musical balance. There is little direct commentary on tonal color, midrange texture, or warmth, so the available evidence does not establish a stronger tonal signature.
Dynamics
93/100
The Absolute Sound highlights bass extension and stability during demanding musical passages, describing an admirably easy presentation under stress. Its 600W output into 8 ohms and 900W into 4 ohms support its suitability for speakers that need substantial current and headroom.
Soundstage Imaging
92/100
Soundstage width and height are described as exceptional for the class, giving the amplifier a distinctly expansive spatial presentation. Depth is said to be competitive with other solid-state amplifiers at this level rather than unusually standout.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
88/100
The 7B Cubed is a fully balanced Class AB monoblock with substantial rated output from a relatively conventional-size chassis. The published specifications also indicate broad bandwidth, low measured noise, and strong 4-ohm output, though the reviews provide little direct discussion of casework, terminals, or long-term durability.
Value for Money
85/100
At roughly $14,990 per pair in The Absolute Sound's listing, the 7B Cubed sits firmly in the high-end monoblock market. The available reviews do not directly assess whether its performance represents especially strong or weak value against similarly priced competitors.
Reviews
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Verified Dealers
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Authorized dealers for Bryston 7B Cubed Mono Amplifier
- Absolute Audio - Canada — in-store — Calgary, Alberta, Canada (website)
- Acoustic Sounds — online and in-store — Salina, Kansas, United States (website)
- Acoustic Technologies — online and in-store — Montréal, Québec, Canada (website)
- Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
- ALAIN CHOUKROUN — online and in-store — Paris, Île-de-France, France (website)
- All That Audio — in-store — Anaheim, California, United States (website)
- Ambiance Concert — in-store — Angers, Pays de la Loire, France (website)
- American Sound — in-store — Richmond Hill, Ontario, Canada (website)
- Analogue Seduction — online and in-store — Whittlesey, England, United Kingdom (website)
- Audible Elegance — online and in-store — Cincinnati, Ohio, United States (website)
and 107 more verified dealers