Bryston 9B-4 multichannel amplifier

Bryston 9B Cubed – powerful 4-channel amplifier for HiFi and home cinema

The Bryston 9B Cubed is a high-quality multi-channel amplifier that combines uncompromising performance with flexible features and reliable build quality. As part of the renowned Cubed series, this power amplifier is designed for demanding hi-fi and home cinema systems that require precise, dynamic, and controlled sound reproduction.

A particularly noteworthy feature of the Bryston 9B Cubed is its fully modular design. Each amplifier channel has its own power supply, including a separate toroidal transformer. This ensures that the individual channels remain independent and can maintain their full dynamic range and control even at high power output. With up to 200 watts at 8 ohms or 300 watts at 4 ohms per channel, this multi-channel power amplifier offers ample reserves for a wide variety of high-performance loudspeakers.

Flexibility is another of the 9B Cubed's greatest strengths. The amplifier is available with three, four, or five channels and, thanks to its modular design, can be expanded or adapted later. This allows the power amplifier to be optimally tailored to different stereo, surround, and home theater configurations.

For exceptionally precise and detailed signal processing, Bryston relies on its patented Salomie circuitry. This proven technology is a hallmark of the Cubed series and contributes to its controlled, transparent sound reproduction. Both balanced XLR and unbalanced RCA inputs are available, allowing the 9B Cubed to be easily combined with a variety of preamplifiers and AV components.

The Bryston 9B Cubed power amplifier also excels in system integration. Its integrated network control allows for convenient monitoring and operation of key functions via an internet-enabled device. These functions include power on/off, temperature monitoring, clipping indication, and firmware updates. A DC trigger is also available for automated installations.

Another advantage is the fully convection-cooled design. This eliminates the need for fans, resulting in particularly quiet operation – an important aspect for both high-quality stereo systems and demanding home cinema installations.

The massive housing, crafted from milled and anodized aluminum, underscores the professional aspirations of the 9B Cubed. The combination of robust construction, modular technology, and comprehensive control options makes it a flexible, long-term solution for performance-oriented multi-channel systems. Switchable gain of 23 dB or 29 dB also allows for adaptation to different system configurations.

For customized integration, the Bryston 9B Cubed is available with a silver or black front panel. Versions with 18-inch or 19-inch front panels are also offered, as well as a professional 19-inch rackmount version with rear-mounted channel level controls.

Technical data

Product type: Multi-channel power amplifier

Channel configuration: 3, 4 or 5 channels

Output power: 200 W per channel into 8 ohms

Output power: up to 300 W per channel at 4 ohms

Frequency response: < 1 Hz – 100 kHz, -3 dB

THD+N: < 0.005% at 20 Hz–20 kHz and rated power at 8 ohms

Inputs: RCA and XLR

RCA input impedance: 30 kOhms

XLR input impedance: 30 kOhm + / 6 kOhm -

Signal-to-noise ratio RCA: < -108 dB

Signal-to-noise ratio (XLR): -110 dB

Gain: switchable between 23 dB and 29 dB

Cooling: fully convection-cooled

Network control: On/Off, temperature, clipping, firmware updates

Standby power consumption: under 500 mW

Dimensions: 43.2 × 14.7 × 44.5 cm

Dimensions including front handles: up to 19 inches deep

Weight: 65 lbs / 29.5 kg

Front panels: Silver or black

Individual front colors and handles

Bryston appliances are available in various front panel colors, most commonly silver or black. Additionally, handles in different colors can be purchased for each Bryston appliance. The specific combination can be customized in consultation with our sales staff. This allows you to configure your appliance as precisely as possible to your personal preferences and achieve the best possible results.