Diagram needed on switchin inputs/outputs

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Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=81885
Printed Date: May 11, 2025 at 7:03 AM

Topic: Diagram needed on switchin inputs/outputs

Posted By: Detour
Subject: Diagram needed on switchin inputs/outputs
Date Posted: August 21, 2006 at 9:11 PM

I've got 2 boxes, ones an airhorn/pa and the other is a siren, and they both need their own 100w speaker. But I dont feel like paying $100+ for a new speaker. I was wondering if someone can tell me how to wire a relay so both boxes can use one speaker. Both have positive and negative wires which go to the speakers and last time I wired all 4 wires to the speaker they came out sounding a lot quieter than they should be.

Replies:

Posted By: INSTALLER_MSS
Date Posted: August 23, 2006 at 12:49 AM

what are you trying to get to work on them? what are you trying to hook up to them both?

Posted By: otbaby399
Date Posted: August 23, 2006 at 1:43 AM

This is actually a fairly simple problem. You will want to use two relays or a 451m style relay. here's a diagram: posted_image

It's Easier and more space effiecient if you can get your hands on a 451m

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