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Bryston impressed the audiophile community with an ultimate fully active loudspeaker system that lets you choose your amplifiers. Listeners were free to build 6-channel systems any way they liked. Now Bryston introduces the 21B³-an amplifier dedicated to bringing Cubed Series excellence to an easy-to-manage package. Each 21B³ has 3 channels. One is rated at 600 watts, the other two are rated at 300 watts each. Active loudspeaker customers will use the high-powered channel for the bass section and smaller channels for the midrange and high-frequency sections of their 3 way systems. Since the 21B³ is based on our 7B³ and 4B³ amps, it can also be used to power any 3 channels such as the front LCR in a home theatre.
Specifications
Dimensions- Inches: 17 or 19 W x 8.1 H x 16.8 or 18.4 (with front handles) D
Weight- 91 lbs | 41 kg
Freuqnecy Response- <1Hz - 100kHz: -3dB
THD+N (20Hz-20kHz @ Rated Power, 8Ω)- <0.005%
Power Output (per channel)- CH 1: 600W @ 8Ω | 900W @ 4Ω
CH 2&3: 300W @ 8Ω | 500W @ 4Ω
Noise- RCA: <-115dB
XLR: <-116dB
Input Impedance: Unbalanced 7.5kΩ
Balanced 5Ωk/leg