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Help with speakers

 

New member
Username: Something_

Post Number: 1
Registered: Mar-17
I am a member of a Volunteer Fire Company we need to connect 3 speakers to the radio in the fire hall. The radio accepts a jack (http://www.showmecables.com/images/catalog/product/3-5mm-Mono-Plug-Connector-Me tal-2.jpg) into the itself. We currently have 1 speaker plugged into the radio in the radio room. I want to know the best and cheapest way to connect 2 speakers (https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcRBTPp2pBZuk9FXB0yoGE-0fWQ T7B4e9c6nPHie4wzrCs34W6gZjg) with the 1 speaker still in the radio room. 1 in each bay (we will then have 3 in total) so we can hear the radio when we put on our gear, and when we are trying to start our trucks.
 

Platinum Member
Username: Jan_b_vigne

Dallas, TX

Post Number: 18391
Registered: May-04
.

Your first link doesn't work. Your second link provides no more than a frontal view of the speakers, which is rather worthless since I need specs for the system.

You don't say what radio you are using and that is rather crucial since the amp must drive three speakers.

Without any more information than you've provided, I would say try a series/parallel connection; https://www.google.com/search?q=speries%2Fparallel+speaker+connection&rlz=1CAACA J_enUS705US705&oq=speries%2Fparallel+speaker+connection&aqs=chrome..69i57j69i58. 10861j0j1&sourceid=chrome&ie=UTF-8#q=series/parallel+speaker+connection&*

That will provide a lower than normal impedance load which your amp must deal with. If the radio is not overheating when in use, it will likely survive.

That's the cheapest way.

One issue with a series/parallel connection is, should one speaker fail, all speakers will be effected and will not work.


Better is to buy a small switch box with a built in load resistor which provides a bit of "protection" for the amp; https://www.crutchfield.com/p_190SS4/Niles-SS-4.html

That's about all I can do given the lack of information provided.


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