Active crossover for pair of lab 12 subwoofers

running123 · 24th November 2011, 12:50 AM

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.

running123 · 24th November 2011, 12:50 AM

sorry by line level meant rca.

weltersys · 24th November 2011, 03:15 PM

Quote:

Originally Posted by running123

sorry by line level meant rca.

This should give you ideas:
Active crossover for tapped horn?

m R g S r · 24th November 2011, 05:31 PM

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)

TheBaronGroog · 26th November 2011, 01:59 PM

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

Asdonk · 01:04 PM

What about a Reckhorn S1 subwoofer filter ?

http://www.diyhifisupply.com/node/513

24th November 2011, 12:50 AM	#1
running123 diyAudio Member Join Date: Nov 2011	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.

28th November 2011, 01:01 PM	#6
Asdonk diyAudio Member Join Date: Jun 2004 Location: Netherlands	What about a Reckhorn S1 subwoofer filter ? http://www.diyhifisupply.com/node/513 __________________ Ralf Last edited by Asdonk; 28th November 2011 at 01:04 PM.

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24th November 2011, 05:31 PM	#4
m R g S r 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)

26th November 2011, 01:59 PM	#5
TheBaronGroog diyAudio Member 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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