| Check filter Schema Please - Click HERE for Original Thread |
| k1jroth |
Hello
This is my first active filter design for subwoofer.
I`m a beginner so could you guys check is it ok.
Some explanations.
Chip OPA 2134
VOLUME is Rod Elliotts design
http://sound.westhost.com/project01.htm
IC1A normal butterworth high pass 7.4Hz (DC protection)
IC3B variable gain from Linkwitz
IC3A Linkwitz transform
IC1B normal variable butterworth lowpass (12db)
IC2A and IC2B is variable phase from Rod Elliott
http://sound.westhost.com/project103.htm
output R11 is to compensate cables capasitance.
C10 10pF (IC2B) is for preventing oscillation.
Please help beginner and check this schema. |
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| k1jroth |
| Sorry i forgot to paste picture and net is down so i post it in evening |
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