Did you contact Bryston?
6 responses Add your response
I purchased a 3B in 1989 if memory serves me right. There were previous versions so its hard to say which version you own...
Harmonic - less than 0.01% from 20 to 20kHz at rated power
IM - less than 0.01% from 10 milli-watts to full rated power
Noise - 100db below full output
Crosstalk - Below noise 20 to 20kHz
Slew rate - greater than 60 volts per microsecond
Power bandwidth - less than 1 Hz to over 100 kHz
Damping factor - over 500 at 20 Hz, ref. 8 ohms
Power - 100 w/ch @ 8 ohms, 200 w/ch @ 4 ohms
The 100W/c, THD was 0.01% SN was in the order of 100db or slightly over. I tried searching through some audio rags that I have but unfortunately the ones with this exact info are gone.
After moving about over the years I got tired of packing and unpacking these things so during the last move I either gave or disposed of literally boexes of these things. :o(
Hope this is of some help.
these originated in 1977 and were purposly underrated, infact every 4B made was 280 watts per side plus or minus 4 watts, during that time they came rated at 200, then 250 watts [but the output remained unchanged], in the case of the 3B I THINK it was actually 147± per side but rated at first 100, then 120, but as I never owned 3B's back then I never was that concerned and I am therefor not certain.