Bryston 2B Amplifier Versions
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savatage1973
Addicted Member
The 2B has also gone through various iterations similar to the 4B--in addition, Bryston also makes pro versions of their amplifiers that have different faceplates and connectors on the back to accommodate PA/studio use.
Raynald
Addicted Member
There was the original full height 2B, then the Low Profile version 2B-LP most people are familiar with and then the 2B-ST, 2B-SST, etc.
What you have there seems to be the original 2B and since it has screws to adjust the output levels on the front panel that would make it a pro version. The light configuration does look unusual.
I am sure if you sent Bryston a picture they could give you the details. They have great service and the same people have been with the company for decades.
What you have there seems to be the original 2B and since it has screws to adjust the output levels on the front panel that would make it a pro version. The light configuration does look unusual.
I am sure if you sent Bryston a picture they could give you the details. They have great service and the same people have been with the company for decades.
gslikker
Super Member
I have a 4b with this unusual light configuration.
Also the small power supply of the lights is rather unusual, it uses 7 volts for the TTL strip where the leds are on, which is NOT according what normals specs are NO designer of digital stuff would do this as 7 volts is abosute maximum (not tolerance) for TTL. Also the small power supply for the 7 volts has the text/legend printing on the wrong side of the board, which is not something to be proud of......
although the normal schematics of the 4b are no problem, guess they were not proud of themselves, as the schematic of the 4b version carrying this led strip I can not find? ......
here is the picture while I was sorting out the LED strip, I still have to refurbish the amp, I stopped working on it since once I decided first make a top cover since this is missing, still sitting in a box in a corner......
The leds can change from green to red so that is a pretty cool sight.
http://members.quicknet.nl/gerard.slikker/brystonled.jpg
Also the small power supply of the lights is rather unusual, it uses 7 volts for the TTL strip where the leds are on, which is NOT according what normals specs are NO designer of digital stuff would do this as 7 volts is abosute maximum (not tolerance) for TTL. Also the small power supply for the 7 volts has the text/legend printing on the wrong side of the board, which is not something to be proud of......
although the normal schematics of the 4b are no problem, guess they were not proud of themselves, as the schematic of the 4b version carrying this led strip I can not find? ......
here is the picture while I was sorting out the LED strip, I still have to refurbish the amp, I stopped working on it since once I decided first make a top cover since this is missing, still sitting in a box in a corner......
The leds can change from green to red so that is a pretty cool sight.
http://members.quicknet.nl/gerard.slikker/brystonled.jpg
Last edited:
I ended up emailing Bryston and they got back to me today. You were right on Raynald, Thanks.
"This unit is the first generation of the 2B, and would be referred to as a 2B Pro. The LED meters were a custom option, often used on amps used in theatres, recording studios, and radio stations.
This amp would be rated at 50 Watts per channel."
"This unit is the first generation of the 2B, and would be referred to as a 2B Pro. The LED meters were a custom option, often used on amps used in theatres, recording studios, and radio stations.
This amp would be rated at 50 Watts per channel."
