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LOC too much for amp?

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=38304
Printed Date: July 05, 2025 at 7:43 PM


Topic: LOC too much for amp?

Posted By: customsuburb
Subject: LOC too much for amp?
Date Posted: August 29, 2004 at 8:31 PM

I just purchased an Alpine 3522 and my head-unit (Alpine CDM-9821) only has one preamp output, and I'm using it right now for my sub amp. Can I use a Peripheral P15 LOC or would that send too high of preamp voltage to the Alpine amp (the amp's gain controls minimum setting is only 2 volts...). I don't really want to split the single preamp output coming from the head-unit because I wouldn't be able to use the sub control on the it anymore.

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Replies:

Posted By: auex
Date Posted: August 29, 2004 at 8:40 PM
Just make sure whatever LOC you get has some adjustment screws so that you can tone it down if need be.

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Posted By: customsuburb
Date Posted: August 29, 2004 at 8:46 PM
The problem is that I already have the one I mentioned above. It says on Peripheral's website about the P15 that it is a fixed (10:1) LOC, what does this mean?

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Posted By: auex
Date Posted: August 29, 2004 at 8:51 PM
It is always worth a try. Being fixed it obviously is not adjustable. Worst case buy a different LOC or best case a new deck to play with.

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Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.




Posted By: jeffchilcott
Date Posted: August 29, 2004 at 9:14 PM
I have used a few of these LOC's before and never had a problem with the input on the amps, most of the time I am able to adjust the gain further down, which in most cases is a great thing

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Posted By: stevdart
Date Posted: August 29, 2004 at 9:17 PM
It won't send too high a voltage to the amp as long as the head unit is putting out no more than 30 watts per channel.  The 5:1 model puts out the right voltage as long as the head unit puts out no more than 20 volts per channel.  The P-35 is the adjustable one.   IMO, you should be perfectly safe with the LOC that you have.

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.





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