Little help with remote wire to two amps
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=49721
Printed Date: May 28, 2024 at 3:57 PM
Topic: Little help with remote wire to two amps
Posted By: goodsounds
Subject: Little help with remote wire to two amps
Date Posted: February 09, 2005 at 1:26 PM
I have an 18 gauge currently from the ignition switch to original amp. For second amp, I am installing distribution block for power and ground but, I'm not sure about remote wires. I know there is very little voltage needed for remote wire. Can I splice original wire and then, run a wire to each amp, run a second wire from ignition (I really don't want to do this), or consider a relay (I don't understand how a relay works)? Thanks in advance for the help.
Replies:
Posted By: goodsounds
Date Posted: February 09, 2005 at 1:30 PM
By the way I currently have a JL 500.1 and will be adding a four channel profile to power four 6 1/2 rounds.
Posted By: DYohn
Date Posted: February 09, 2005 at 1:30 PM
In general, you can use the remote on wire from most head units to switch two amps by simply jumpering one to the other. More than two is when a relay is usually demanded. But what is the 18 gage wire you described being used for? I hope this is not your power supply... ------------- Support the12volt.com
Posted By: goodsounds
Date Posted: February 09, 2005 at 1:39 PM
No I'll be using 2 gauge wire to the dist block then (2) 4 guage wires to each amp. I'll use the same gauge wire for ground back to the battery (-)....It's for a boat application. 18 gauge wire is for the remote lead that I have wire to the ignition so amps will be on when the boat accessory is on or the boat is running.
Posted By: DYohn
Date Posted: February 09, 2005 at 1:55 PM
Gotcha. Just jump the remote on lead from one amp to the other. ------------- Support the12volt.com
Posted By: goodsounds
Date Posted: February 09, 2005 at 2:01 PM
Could you explain "jump the remote on lead"... Do you mean just splice the wire at some point and run two wires to each amp OR did you mean... Place a second wire into 1st amp's remote terminal running over to the 2nd amps terminal????
Thanks for your help.
What would a relay accomplish?
Posted By: DYohn
Date Posted: February 09, 2005 at 2:35 PM
Your second solution is much easier. Run a second wire from one amp to the other. A relay is used when the current draw from multiple amps or other outboard devices exceeds the capacity of the remote-on lead from the head unit. Is there a reason, by the way, that you are using a switched power of the ignition and not the remote on lead from your head unit? ------------- Support the12volt.com
Posted By: goodsounds
Date Posted: February 09, 2005 at 3:04 PM
Stock head unit with no remote wire. I replaced it with a Alpine CDA 9833 but already had an ignition remote turn on so I was going to use it. (Any wires from the HU out to the amps are down along the hull of the boat and a real pain to run) The HU is down inside the cabin.
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