me design a lp variable cross

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=132732
Printed Date: May 10, 2025 at 7:30 AM

Topic: me design a lp variable cross

Posted By: 682146989723
Subject: me design a lp variable cross
Date Posted: November 20, 2012 at 8:39 PM

i want to have a variable LP crossover for each channel. 125-60 variability and the other 70-30 or 2 at 125-30 variabilty. i would like to mod these into the dash or console of my 96 cherokee. i have the schimatics from my home audio powered sub amp board with a variable LP crossover if that will help.

honestly, i need someone to design it for me and possibly build it.

eric

Replies:

Posted By: 682146989723
Date Posted: November 20, 2012 at 8:43 PM

it would be for 2 subs and will probably have to be active.

Posted By: soundnsecurity
Date Posted: November 21, 2012 at 9:29 AM

it would be much easier to buy an in-dash active crossover that will do what you want plus much more i suppose.

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Posted By: DYohn
Date Posted: November 21, 2012 at 10:01 AM

Ditto. Just get an electronic crossover. It's likely to be cheaper than what you can build and it would be guaranteed to work.

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Posted By: 682146989723
Date Posted: November 21, 2012 at 1:40 PM

i apreciate your posts.

if you can find a unit that has 2 low pass channels that cover the frequency range i am interested in then i would buy it. i've looked. i even considered 2 one channel units and i did not come across those either.

Posted By: DYohn
Date Posted: November 21, 2012 at 7:49 PM

Try an Audiocontrol Three.2, or a DQXS with dash control unit.

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Posted By: 682146989723
Date Posted: November 21, 2012 at 10:24 PM

thanks for the ideas but niether appear to have 2 low pass channels.

Posted By: soundnsecurity
Date Posted: November 22, 2012 at 5:51 PM

are you wanting to have a different crossover point for left and right sides? why?

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Posted By: 682146989723
Date Posted: November 22, 2012 at 8:08 PM

soundnsecurity wrote:

are you wanting to have a different crossover point for left and right sides? why?

i want to run one sub at a lower cut off than the other. the lower frequencies are percieved quieter than the higher. out of 2 speakers i will have the spl increase with the lower notes. i have this set-up in practice in my home. i also change the low pass of one of the subs to accomodate the style of music. 2 easy examples are rock/metal the low pass would be set around 110hz and for rap/bass around 70hz. those are liklely frequency ranges not something i would want on a switch. as for the sub that i run at the lower frequency, i adjust that for environment accoustics.

Posted By: DYohn
Date Posted: November 23, 2012 at 9:04 AM

So use 2 crossovers.... no big mystery.

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Posted By: 682146989723
Date Posted: November 23, 2012 at 2:46 PM

DYohn] wrote:

o use 2 crossovers.... no big mystery.

they need to be easily accessable and easily adjustable. as in 2 knobs protruding from the dash or console. the knobs do not need to be mounted too the board that handles all the cross over stuff if it is possible, just put 2 knobs on a small board and wire it too the larger. needs to be made. any builders on this forum?