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Bryston 4BST Studio Amplifier
Not our usual fair, but we love all high end audio equipment and we’re very happy to be selling this beast of a power amp from Bryston.
This amp was fully serviced by Bristol or PMC and has remained unused since then.
Introduced in 1999, the 4B-ST was an upper mid level stereo power amp from Bryston, that took the fight to the high end power amps of the day. It still packs a punch today, pushing out 400 watts per channel in to 4 ohms and 800 watts in bridged mono mode (see full spec below).
This unit is in decent but used cosmetic condition, with light scratches and dings, and the tell tale marks around the rack ears that shows it has been racked. It works perfectly and sounds glorious! Perfect for anyone looking to upgrade their stereo hifi system, but also equally great for powering passive studio monitors such as PMCs.
It comes with a fitted PMC box (PMC are Bryston’s official UK importer and distributor) and the original styrofoam packaging. This is a full UK/Europe voltage version at 230v AC
Here’s the full specs from Bryston:
Type | Stereo power amplifier |
Output | 400W + 400W (4 Ω) 250W + 250W (8 Ω) |
Damping factor | 500 (20 Hz, 8 Ω) |
Input sensitivity | RCA : 1.4V/50k Ω 1/4 Phone, XLR3 : 2.8V/20k Ω * XLR3 is number 2 hot. |
Slew rate | 60 V / μ sec or More (Parallel) 120 V / μ sec or More (Series) |
Distortion factor | Not more than 0.007% |
Signal-to-noise ratio | 106dB |
Frequency characteristic | 1 Hz to 100 kHz (250W) |
Power supply voltage | 100 VAC, 50Hz/60Hz |
Power consumption | 1350W maximum |
External dimensions | Width 483x Height 148x Depth 427 mm |
Weight | 18kg |
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