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MTX 4202 smart engage or LOC

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Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
Printed Date: November 27, 2022 at 1:57 AM

Topic: MTX 4202 smart engage or LOC

Posted By: chay03
Subject: MTX 4202 smart engage or LOC
Date Posted: May 30, 2005 at 11:59 AM

Going to put this in a 2001 Grand Am w/stock stereo. Will on be pushing one 10" sub (dont what kind yet) in bridge mode. Should I use the smart engage or buy an LOC?


Posted By: racer427
Date Posted: May 30, 2005 at 6:24 PM

I would just use the high level inputs on that amp. This way you won't have to run a seperate remote on wire to it.


Alpine CDA-9833 HU
Diamond Audio M661 Components
MTX Thunder T6.6 Components:rear fill:
Cadence Q400 4 Channel Mains + rears
Thunder 801D Subs
MTX 1004 10's
Dual 4g wire to rear
4g grounds

Posted By: chay03
Date Posted: June 13, 2005 at 2:22 PM
OK, Finally put the amp in. New problem: I am using the smart engage on the amp without remote wire. Once the car and stereo are off, I noticed the amp is still on. Is there a delay before it shuts off?

Disconnecting the hi-level inputs will turn it off as well as switching the x-over switch.

What should I do?

Posted By: us_test
Date Posted: June 13, 2005 at 3:51 PM

I would look into a remote wire.

Way back in the day someone (a shop) installed an amp in my car and hooked the remote to 12V constant (the battery was deas overnight).  Sounds like you have a smiliar issue where the smart engage is ready constant for the remote turn on and it keeps the amp on even after the HU is off.  If there is a delay it would be 1 min or less.

Posted By: chay03
Date Posted: June 13, 2005 at 4:11 PM
Thanks for the info.

I think it'll be alright. Looks like the delay is about 20 min. I think because the caps are slowly discharging in the amp until finally the voltage drops enought that power is cut off. Not worried about draining battery becuase the amp is not drawing large amounts of current in this state.

Posted By: us_test
Date Posted: June 15, 2005 at 7:20 AM

I don't know man.  When my battery died I had a 4 channel kenwood and I was on overnight for like 8 hrs (granted the battery was a few years old but still).  I jumped the card battery but the bat would not charge (the alt was good).

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