BRYSTON 9B-ST 5 Channel Amplifier (THX-Ultra Certified)

Bryston is not only a company that has been in business for more than 20 years, but it is the only company that warranties their products for 20 years.
They started out two decades ago just fixing anyone's Bryston amplifier for free, because so few of them broke down. So, when they went big time, they had to choose a warranty period. How about 20 years?

The Bryston 9B-ST is the five-channel power amplifier version of the 3B-ST (two channels), 5B-ST (three channels), and 8B-ST (four channels). All of these amplifiers are modular, with each module having its own complete power supply, including an 0.25 kVA (250 watts) toroidal transformer, dual 15,000 µF power supply capacitors, and ±60 Volts on the rail, providing 54 Joules per amplifier channel (that's 1,250 watts of toroid and 270 Joules of energy storage total, which is a LOT for a 120 watt/channel, five-channel power amplifier). Four bipolar output transistors per channel deliver 120 watts per channel into 8 Ohm loads and 200 watts per channel into 4
Ohms.

In summary, the Bryston 9B-ST is a real wow product, with astonishing build quality and great sound. It has been designed for very high fidelity at modest power. However, I consider it to be conservatively rated, probably sneaking quite a bit more power for those high impact movies than one might imagine. It is obvious that Bryston has chosen to set standards rather than follow them.

This amplifier has been PCX-Certified….cleaned inside and out, all chassis blemishes touched up or re-painted, all hardware replaced, refurbished internally as necessary with factory parts, fully bench tested, burned in…and sold with 1 year P&L warranty.