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2nd January 2007, 10:59 PM
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#1 |
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diyAudio Member
Join Date: Mar 2005
Location: Burnaby
  
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electronic crossover modification
WARNING ....not an electronics expert.. not even an electronics amateur...
but I just built an electronic subwoofer crossover from a kit, I simply soldered and prayed a lot  It has a volume gain pot but it has no cut-off frequency pot, it has a DPDT that switches from 50 or 70 hz. Is the default 50 or 70 hz setting based on the values of the resistors and capacitors ? Does the two IC thats built into the kit play a role in the cut-off frequency. My goal is to change these to 30 and 40 hz, as I can still localize the position of the sub on the 50 hz setting. I know i need to post the schema, but as i have not taken a photo of the schema as of the moment. If the 50/70 hz cut-off is based on the IC then there is no need to post the schema as this would not be possible to change given my expertise.. thanks
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na |
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2nd January 2007, 11:32 PM
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#2 | ||
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diyAudio Moderator
Join Date: Apr 2002
Location: Chatham, England
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Re: electronic crossover modification
Quote:
Quote:
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Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort |
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2nd January 2007, 11:40 PM
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#3 | |
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diyAudio Member
Join Date: Mar 2005
Location: Burnaby
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Re: Re: electronic crossover modification
good so it can be modified
Quote:
What if I daisy chain two Electronic crossover ? its an 18 db per octave crossover..will this now be an 36 db per octave crossover ? is this good or bad ?
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na |
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2nd January 2007, 11:43 PM
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#4 |
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diyAudio Moderator
Join Date: Apr 2002
Location: Chatham, England
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Hmm, 18dB should be fine. Can you post the schematic please, and pics of the board as well if you have them.
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Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort |
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4th January 2007, 08:47 PM
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#5 |
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diyAudio Member
Join Date: Mar 2005
Location: Burnaby
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na |
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4th January 2007, 11:54 PM
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#6 |
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diyAudio Moderator
Join Date: Apr 2002
Location: Chatham, England
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We don't allow crossposting here, so there is a link to the new thread below and I'll close this one.
http://www.diyaudio.com/forums/showt...22#post1098022
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Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort |
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