Amp Turns on with RCA
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=37059
Printed Date: May 14, 2025 at 1:30 PM
Topic: Amp Turns on with RCA
Posted By: smurfsport
Subject: Amp Turns on with RCA
Date Posted: August 09, 2004 at 12:56 PM
I have a slight problem. I recently traded cars and am installing my amp into my new car. Previously I was developing a problem where the AMP would turn on without the remote wire but with the RCA cables. What could be that cause of this? Also I replaced 8 of the FETs on the input side today. An enginner here at work told me they were bad and I should have them replaced. Any thoughts are welcome. On a side note my amp has High level inputs I will be using on my next instal. Does this matter? Dan
Replies:
Posted By: Alpine Guy
Date Posted: August 09, 2004 at 1:04 PM
we can't help unless you tell us your set up,,,deck, amp, car,,and so on
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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.
Posted By: beady
Date Posted: August 09, 2004 at 1:11 PM
https://www.jlaudio.com/amps/pdfs/SYS_11.pdf Looks like some JL amps turn on when they sense a signal from the RCA cables. Means you don't have to run a remote on wire for teh amp when using a deck (factory) without one. Don't know what amp you have, but maybe it does this also. Mike
Posted By: smurfsport
Date Posted: August 09, 2004 at 1:19 PM
I am running an MTX 2150X. I have had it for 6 years and have never had any problems. My new setup will be stcok 2004 cavy XM radio, amp, and 2 10" MTX. Not sure on what model sub I will use at this point.
Posted By: stevdart
Date Posted: August 09, 2004 at 7:20 PM
I would recommend using a high quality aftermarket line output converter that is of the adjustable variety, such as the Peripheral P-35, instead of any amplifier's built-in converter. You need the best electronics you can get to make that conversion and get a good signal to the amp. ------------- Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: Ravendarat
Date Posted: August 10, 2004 at 2:54 AM
MTX uses a thing called smart engage. When the signal is recieved through the RCA lines, it will turn the amp on. I thought it only did it using the high level plug on the amp but mabye it does it using the rca plugs as well. I bet the amp is just fine.
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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
Posted By: smurfsport
Date Posted: August 10, 2004 at 12:28 PM
Thank you all for the help.
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