sub output vs regular output
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=83846
Printed Date: July 13, 2025 at 4:59 AM
Topic: sub output vs regular output
Posted By: ammay415
Subject: sub output vs regular output
Date Posted: October 07, 2006 at 7:39 PM
I have 2 options to wire rcas to my amplifiers.
1: run f&r rcas from the head unit to the 4 channel amp, then use the amps non fading preamp outputs for the sub amp.
2: run f&r rcas from the head unit to the 4 channel amp, and run rcas from the sub output of the head unit to the sub amp.
I thought the sub output from the head unit is just a volume control to be adjusted by the head unit. I dont want to control it, I want it full blast all the time. Would there be any differences or advantages between the two methods of wiring? I am planning on #1. Thanks!
Replies:
Posted By: ammay415
Date Posted: October 07, 2006 at 8:15 PM
Ok I gave too much info.
Should the sub amp be hooked up to the head units subwoofer output, or the amplifiers non fading output?
I will never need to adjust the sub level.
Posted By: aznboi3644
Date Posted: October 08, 2006 at 12:57 AM
If the deck has a sub output why not use it...just set it and don't ever touch it...same as never needing to adjust the sub level
Posted By: i am an idiot
Date Posted: October 08, 2006 at 1:27 AM
aznboi is so right why not run the patch cord from your deck and do it right, Then when you realize that all the way up is not neccessarily the right attitude for your hearing, you will be set and can turn it down a little. LOL
Posted By: kirktcashalini
Date Posted: October 08, 2006 at 9:57 AM
yeah, do you ever plan on having a girl in the car with you? If not then do it your way. If so, they tend to like a "tid" cough less bass then "all the way up".
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99 Blazer LT. Yellow Top. Big 3. Infinity Kappa Speakers All Around. Jensen CD/DVD flip out. 2 Infinity Kappa Perfect 12DVQs powered by a Alpine PDX600.1 (in one custom box, building a FG box)
Posted By: ammay415
Date Posted: October 08, 2006 at 10:18 AM
[QUOTE=kirktcashalini] yeah, do you ever plan on having a girl in the car with you? QUOTE]
My wife - I have a cut off switch for the sub amp but I turn it on when she just keeps blah-blah-blahing
So you guys are saying that using the sub out off of the deck is the more popular way to do it?
Posted By: coppellstereo
Date Posted: October 08, 2006 at 11:47 AM
of course! Using the subwoofer out will actually give you control of the subwoofer!
Now you can get rid of that switch!
what kinda HU is it?
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Posted By: kirktcashalini
Date Posted: October 08, 2006 at 12:24 PM
Ok, I didnt know you did a cut off switch, thats a good idea, I have contemplated doing one on mine as well, but I have an easy knob to turn it down easy.
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99 Blazer LT. Yellow Top. Big 3. Infinity Kappa Speakers All Around. Jensen CD/DVD flip out. 2 Infinity Kappa Perfect 12DVQs powered by a Alpine PDX600.1 (in one custom box, building a FG box)
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