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17th March 2005, 08:18 AM
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diyAudio Member
Join Date: Nov 2004
Location: tampere
  
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Check filter Schema Please
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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