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tuning, mtx req

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=120972
Printed Date: May 13, 2024 at 11:59 PM


Topic: tuning, mtx req

Posted By: rnichols14
Subject: tuning, mtx req
Date Posted: March 25, 2010 at 8:23 PM

Got a stock head unit with mtx req so I can hook subs up to factory head unit. Mtx req has LPF setting for 40-200hz, bass enhance switch for off, before amp, after amp. Also has a subsonic filter setting for 0-40, and a setting for gain. Now this is wired to 2 Alpine PDX1.1000 amps powering to two 12in type x dvc subs in a sealed box. Amps have settings for LPF, Gain, and subsonic filter:0,15,30

Any suggestions for the best tune? I tune it but doesn't sound like its hitting anywhere near where its suppose to and sometime the amps go into protection mode on hard hits.



Replies:

Posted By: nodiggie
Date Posted: March 26, 2010 at 1:24 AM

Tuning is a very subjective subject. What sounds great to others may not sound great to you.

Not sure on the clipping issue. First thing I would do is double check the gains.

Two PDX 1.1000s are still going to draw a good amount of amps from your alternator. Do you have adequate power from your car's electrical system? Any extra batteries installed?

I could be wrong but gains too high could cause clipping and or not enough supply power to your amps could cause your amps to clip or cut out.  



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Still learning

Kraco




Posted By: rnichols14
Date Posted: March 26, 2010 at 1:37 AM
It might possibly be the power supply. I got a yellowtop battery in the car and and have 0 guage wire running from the battery to a 6 farad capacitor then splitting out to 4 guage wire to each amp. Lights dim like a motha*****!




Posted By: franky84
Date Posted: March 29, 2010 at 3:00 PM
i think you need to upgrade your battery, check your alternator and i would suggest a cap for each amp.. im just sayin

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Tattoofreak





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