BRYSTON 4B ST SERIES - BLACK 17" 
SUPERIOR CONDITION 

• JUST BACK FROM BRYSTON FOR FULL CHECK-UP 

• SEE SUPPORTING  PAPERWORK

• NEW PACKAGING - Ser #446237

• WE ARE AN AUTHORIZED BRYSTON DEALER

We received this from a local customer - Always in Arizona so no issues with corrosion. We purchased new packaging and sent it back to BRYSTON for bias adjustment. 

FULL BRYSTON FACTORY CHECK-UP completed, adjusted and cleaned rear switches inputs. 

New shipping box and foam, reprint of manual and new power cord included.

This is a special condition 4B ST which we paid to have Bryston check-out and service, not a local repair shop.  There are no issues or damage - check out the photos. Rated 8/10 for age.

Please, no trades or flakes

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From Review...
"The Bryston 4B-ST is a quite handsome little devil in its own modest way. While at this price level one mustn’t expect audio jewelry, Bryston does a nice job with a few machining touches to enhance the basic black-block look. At 17"W x 14 1/2"L x 5 1/4"H, the 4B-ST is not a room-filling monster by any means.The 4B-ST has nice business-like cosmetics that shouldn’t intrude on any décor. The front panel consists of a power switch with two green LEDs above it, nestled in the top groove. These LEDs are said to be three-color units to warn of clipping or its onset. I use "said" because never in use could I get them to turn orange (onset of clipping) or red (clipping).
Rated at 250Wpc (8 ohms) and up to 800 watts bridged (also 8 ohms), the 4B-ST never seemed to run out of steam even at some raise-the-roof levels. Further, specs imply good engineering and a stiff power supply. Distortion is at less than .007% from 20Hz to 20kHz, with a slew rate greater than 60 volts per microsecond. (120 volts per microsecond bridged). Coupled with a damping factor of over 500 (at 20Hz, reference 8 ohms), this is a good recipe for woofer control.
Other features include a stereo/mono switch, gold-plated input/output connectors, and switchable balanced XLR and RCA single-ended inputs. One nice feature I would like to see more of is the ground-lift switch. This lifts the internal circuitry while still grounding the chassis. As I noticed a slight ground-loop hum upon hook up, a flick of this switch resulted in a dead-quiet background."