2 amps but only 1 rca 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=114283
Printed Date: July 04, 2025 at 12:29 AM
Topic: 2 amps but only 1 rca output
Posted By: djperez81
Subject: 2 amps but only 1 rca output
Date Posted: June 06, 2009 at 11:57 PM
i was wondering what the best way to install a second amp if my headunit only has 1 rca output. my bass is drownig out my mids/highs so i want to install a 2nd amp and add a set of components in the rear deck. i do all my own installation but never had to run a 2nd amp. so i want to know the correct way to wire it. i would really appreciate it thanks
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BoominSable
Replies:
Posted By: i am an idiot
Date Posted: June 07, 2009 at 6:07 AM
It is common for some amplifiers to be outfitted with an RCA input jack, and a set of outputs also. If neither of your amps are equipped with an output, you will need to purchase a set of Y adapters. They are sold is several varieties. If you are planning a future upgrade to a deck that has multiple outputs, I would recommend placing the Y adapter behind the radio and go ahead and run a new patch cord from there to the second amp. If that is what you are going to do, when you purchase the Y adapters, you need to tell the salesman that you need a pair of "1 Male and 2 Female" Y Adapters.
Posted By: djperez81
Date Posted: June 07, 2009 at 10:37 AM
what about the power, ground and remote wires should i just bridge them from my other amp
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BoominSable
Posted By: i am an idiot
Date Posted: June 07, 2009 at 10:47 AM
That depends on what size your power wire is, and how much power the 2 amps are. The remote wire will be fine if you jump from one to the other. Each amp should have it's own ground wire, grounded to it's own spot on the chassis of the vehicle.
Posted By: djperez81
Date Posted: June 07, 2009 at 11:20 AM
im running 4 guage wire and my amp is an alpine450 with a 2 farad cap pushin one 12 in an obcon box. will it not work if i just jump the power and ground wire like the remote wire
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BoominSable
Posted By: i am an idiot
Date Posted: June 07, 2009 at 11:56 AM
If you want to do it that way, it will work.
Posted By: djperez81
Date Posted: June 07, 2009 at 1:08 PM
im not want of those idoits that have 4 12's and a million watt amp. i learned that if you buy decent equipment and install right it sounds awesome. i actually just went a bought a nice crossover a lil while ago I really appreciate your advice thanks. now its time for me to go install my new toy....haha ------------- BoominSable
Posted By: i am an idiot
Date Posted: June 07, 2009 at 1:44 PM
Well I am one of those idiots and I really think you would be better off using the capacitor as a distribution block for the power wire. Then it would at least have a purpose. To install it "right" as you stated, you really need to have a ground for each amplifier. But what do I know?
Posted By: djperez81
Date Posted: June 07, 2009 at 6:21 PM
i never ment to call you an idiot sir i really appreciate you advice THANK YOU
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BoominSable
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