[Lowpass filter for subwoofer]

:)
hi,

thanks for the advises. it seems working now i did not use any pre-amps and 50k & 25k works quiet well

more power...


almer

[Lowpass filter for subwoofer]

:-\ hi,

does this circuit need a pre-amp or it can drive power amp directly? I can't find potentiometers stated in the diagram here in our place we have here 50k and 25k pots we don't have 47k and 22k. Can I use them? Is there any effect in the cut-off frequency of the circuit? Does the input of this circuit need a low output from crossover? Pls. advise.

thanks,
almer

Project Link: http://www.electronics-lab.com/projects/audio/008/index.html