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Old June 26th, 2016, 10:53 AM   #1
bfreckman
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Default Radio/Amp/Speaker Install HELP!

Electrical Genius Types....HELP!
I've already trashed a Retro Radio by screwing up the speaker install. Here's where I'm at now. I have a brand new Custom Autosound radio with the following speaker set up.
Kick Panels - Each has a 6.5" Round, 2-way Coaxial, 4 ohm speaker
Rear Seat/Floor Area (these face straight up) - One Left/One Right 6.5" Round, 3-way Coaxial, 4 ohm speakers
Rear Storage Box (these face forward at an angle) - One Left/One Right 6" x 9", 3-way Coaxial, 4 ohm speakers
So there is a total of 6 speakers. At this point I DO NOT have a separate AMP. I've been told I need one to maintain the 4 ohm speakers and have enough power for all of them. If this is so, would someone be kind enough to tell me what kind of amp I should have (2-channel, 4-channel, bridgeable, etc.), and then draw me a schematic for the wiring. I think I can wire just about anything as long as I am told one wire at a time and no electrical engineering seminar.
Thanks in advance for any and all help!
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Old June 26th, 2016, 01:30 PM   #2
tattooed_pariah
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Default Re: Radio/Amp/Speaker Install HELP!

I always go with the "just do it" method..

I'm currently running a JVC (I think, maybe someone else, i forget now..) head unit, which goes to one of those pre-built kragen boxes that has 2 6" mids and 2 2" tweeters and two 15" subs.. the subs are 8ohm meant for home stereo..

it's been working for me for 10+ years..

all in all, the "front" speaker wires go to the small box, the "rear" wires got to the subs.
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Old June 28th, 2016, 05:48 PM   #3
mkparker
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Default Re: Radio/Amp/Speaker Install HELP!

Sounds like the "just do it" method jacked up his first radio.

Depending on what unit you bought, they typically have 300 peak watts which should be pretty decent unless you really like to blast it. The radio should be able to supply all six speakers, again, unless you really want it loud. Most audio units like 4 - 8 ohms. The key to connecting multiple speakers to one channel is maintaining the correct ohms. Two 4 ohm speakers in parallel equals 2 ohms which radios don't like. They need to be connected in series.

Here's a page describing wiring options.


There's a LOT of info here that may help or just add to the confusion depending on your level of understanding.
http://www.the12volt.com/caraudio/caraudio.asp

There are good wiring diagrams that came with your unit.
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Old June 28th, 2016, 07:02 PM   #4
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Peak watts is garbage. RMS is what you wanna pay attention to. You don't wanna overpower your speakers too much, but a bigger amp can have the gain turned down to reduce noise. Crossovers are your friend. Save your mids and tweets from excessive bass, and don't send the highs to the sub(s)

Multiple amps or a single with enough channels to run it all is really your choice. Stick with quality brands. There are many.

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Old June 29th, 2016, 12:38 PM   #5
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Default Re: Radio/Amp/Speaker Install HELP!

Quote:
Peak watts is garbage. RMS is what you wanna pay attention to.
Agreed, but you provided no help to the original question.

Quote:
If this is so, would someone be kind enough to tell me what kind of amp I should have (2-channel, 4-channel, bridgeable, etc.), and then draw me a schematic for the wiring
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Old June 29th, 2016, 01:09 PM   #6
mkparker
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Default Re: Radio/Amp/Speaker Install HELP!

bfreckman, how about trying just four speakers and wiring it just like your manual shows.

I would eliminate the 2 speakers in the rear floor area and see how you like it. Since you don't mention any Subs, I'm guessing this isn't any kind of competition setup. I believe this will give you good sound and little hassle.
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