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Old 24th November 2011, 12:50 AM   #1
diyAudio Member
Join Date: Nov 2011
Default Active crossover for pair of lab 12 subwoofers

Hi there, about to build a pair of ported 90l eminence lab 12 subwoofers tuned to 25hz. Want to power them with a behringer ep 2000.

Anyone know the easiest way to set up an adjustable low pass filter (like the variable knobs on active subwoofers eg 50-100hz). Also want to have a fixed high pass at 20 hz. Input would be line level.

I would be grateful if you could tell me the easiest way of doing this both both digitally and analogue. Thanks.
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Old 24th November 2011, 12:50 AM   #2
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Join Date: Nov 2011
sorry by line level meant rca.
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Old 24th November 2011, 03:15 PM   #3
diyAudio Member
Join Date: Jan 2008
Originally Posted by running123 View Post
sorry by line level meant rca.
This should give you ideas:
Active crossover for tapped horn?
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Old 24th November 2011, 05:31 PM   #4
diyAudio Member
Join Date: Jan 2011
I just went through this but wanted the high pass to protect the subs from over excursion if playing At any high volumes under the horn tuning frequency.
Anyway for $99 plus $10 for a plug in the mini DSP is very helpful (and flexible)
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Old 26th November 2011, 01:59 PM   #5
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Join Date: Aug 2011
There are plenty of cheap and easily adjustable active crossovers for car use, they'll be 12v powered and 2-way,. They won't have a "subsonic", but these can be easily made on the RCA input side-I have seen a link on here, or get one of these: FMOD (Filter Module) High Pass RCA Level Crossover
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Old 28th November 2011, 01:01 PM   #6
Asdonk is offline Asdonk  Netherlands
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Join Date: Jun 2004
Location: Netherlands
What about a Reckhorn S1 subwoofer filter ?


Last edited by Asdonk; 28th November 2011 at 01:04 PM.
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