loc or speaker level inputs

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=122876
Printed Date: July 15, 2025 at 1:30 AM

Topic: loc or speaker level inputs

Posted By: cachanilla
Subject: loc or speaker level inputs
Date Posted: July 28, 2010 at 5:10 PM

Hello everybody; when connecting a sub amp to a factory HU; what is best; a LOC or use the speaker level inputs of the amp? Thank you.

Replies:

Posted By: i am an idiot
Date Posted: July 28, 2010 at 7:44 PM

As far as sound quality goes, it really makes no difference. From a logical standpoint, I would always go with the LOC. Reason being, if you connect the LOC to the speaker wires behind the radio, there is very little chance of running a screw through it or pinching the wire in the door sill. Also if you upgrade your radio, the RCA cable will already be in place. Running the speaker wires through the vehicle always has a chance of grounding a wire and taking out the output chip of your factory deck. Depending on where you live, this may be impossible to get repaired. Just my .02

Posted By: cachanilla
Date Posted: July 28, 2010 at 10:43 PM

Thanks I am an idiot; also is it a difference if I use the rear instead of the front speakers?

Posted By: i am an idiot
Date Posted: July 29, 2010 at 2:14 AM

Generally speaking, no it does not matter. But if you are driving a Honda, there could be problems because of the integrity of the airtight seal of the trunk.

Posted By: cachanilla
Date Posted: July 29, 2010 at 2:50 PM

Thanks a lot I am an idiot; you've been very helpfull!