Hello all!
Just converted a LM3886 amp to a Current Drive - Transconductance amp...Seems to be fine on my B&W DM220 (test speakers), and thinking of trying them on a set of Quads... anyone with any advice? I read that transconductance amps are better geared to Full Range speakers with some amount of Equalization... and maybe not so happy driving high Capacitance - reactive loads
Just converted a LM3886 amp to a Current Drive - Transconductance amp...Seems to be fine on my B&W DM220 (test speakers), and thinking of trying them on a set of Quads... anyone with any advice? I read that transconductance amps are better geared to Full Range speakers with some amount of Equalization... and maybe not so happy driving high Capacitance - reactive loads
Transconductance (current amps) like to see flat resistive impedance response. Something an ESL is not. I do not expect it will go well, but you habe to try.
dave
dave
The distortion of the step-up transformer will increase considerably with current drive. I wouldn't even try it.
Perhaps it does not like inductive more creating 40 dB crossover slope. Anyhow resistor in series with C or parallel with L usually do. I forgot how it's called in a deflection current pumps.