External Low Pass Filter

[shoe88]

Hello HomeRecording Forums! I am new to the forum and am hoping someone can help me with a somewhat odd request:

I am looking for a piece of equipment that can act as a low pass filter for a subwoofer that doesnt have a low pass, it relies on the surround decoder which my mixer doesnt have (a dedicated sub-out) neither does the recording Mac.

This is for a "homebrew" recording studio I am building out of donations for a local non profit.

It is some sort of "white van" 5.1 home theater setup where the amp for the speakers is built into the subwoofer unit, so there are 6 RCA inputs, one for each channel.

Currently I have split the audio out from the mixer into 3 pairs so all the speakers receive the signal, but obviously since there is only 1 main output on the mixed I can't just dedicate a channel just for <180hz for the subwoofer.

So the item I'm looking for should (hoping) work like this:

From mixer/soundcard -> rca input -> low pass filter w/ or w/o control knob -> rca out -> subwoofer

If there isnt a product like this I'm pretty good with a soldering iron so I can solder a ghetto rig if needed haha

 

[diggy_dude]

Dude. Please give up this idea and get some monitors. If you're relying on donated gear, watch for a good clean amp and some decent 2-way stereo speakers with a more or less flat response down to 50 Hz. These will usually have 8" or 10" woofers. The setup you're working with will never give you an accurate presentation of what's on the tape.

 

[ocnor]

What you are describing is called a crossover