Power amplifiers stereo — Bryston 9B Cubed

The 9B Cubed is a stereo power amplifier from Bryston, sitting below the 14B Cubed with more modest output power and a substantial input impedance. The 9B Cubed brings Bryston's considered engineering to dedicated stereo power amplification.

Key specs that matter

Input impedance is a substantial 30,000 ohms on both connections - considerably higher than the 14B Cubed's 5,000/7,500 ohms. Output power is 200W into 8 ohms, rising to 300W into 4 ohms - considerably more modest than the 14B Cubed's 600W/900W. Frequency response extends down to 1Hz and up to a wide 100,000Hz within plus-or-minus 3dB, matching the 14B Cubed. Signal-to-noise ratio is 110dB via XLR or 108dB via RCA. Total harmonic distortion plus noise is under 0.005% at 100% global feedback. At 430 x 170 x 445mm and 29.5kg, the 9B Cubed maintains a more accessible stereo power amplifier chassis than the flagship 14B Cubed.

Sound and use context

Expect exceptionally clean, capable amplification reflecting Bryston's broader precision-engineered philosophy, representing a more accessible step into the Cubed-series stereo power amplifier range.

Pairing

Bryston's own preamplifier catalogue, including the BR-20, offers natural, brand-coherent pairings within the same broader catalogue.

Alternatives

Bryston's own 14B Cubed offers a considerably more powerful alternative within the same broader catalogue.