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Old 15th March 2004, 05:29 PM   #1
accvtec is offline accvtec  United States
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Default Amp installation

I'm looking to buy an amp and I found one but it has Front and Rear RCA inputs and my HU only has 1 output. Is this going to present a problem or there is a way around it. I'm new to car systems so, any help will be well appreciated. Thank you...
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Old 15th March 2004, 08:42 PM   #2
maylar is offline maylar  United States
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You can use "Y" cables and jumper your fronts and rears to the same RCA cables.
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Old 19th March 2004, 06:21 PM   #3
accvtec is offline accvtec  United States
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so, you are telling me that I can convert my 4 channels into 2 RCA outputs, instead of using the one RCA output that my HU has?

Also, if i'm installing a 1000-1600 watt amp, do I need a capacitor? and what reading should I look for (farat), I think that's how is called.

Does anyone know where I can find layouts for HU, Amps, woofers, etc installation?

Thanks for any info....
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Old 19th March 2004, 07:43 PM   #4
roger2 is offline roger2  United States
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as suggested, you can run a single RCA cable from your HU's single pair of outputs then "Y" that cable at the amp to feed both pairs of inputs on your 4-channel amp

assuming that you would use that amp to drive one set of front speakers and another pair of rear speakers...you would lose the ability to fade from front to rear from the HU's controls, however you could "fade" using the input gain controls of the amp

if you don't intend to drive 2 pairs of speakers then you don't need a 4-channel amp (or 2 pairs of outputs on the HU)

hope this helps
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Old 22nd March 2004, 12:10 PM   #5
accvtec is offline accvtec  United States
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Thanks...I think I understand now...sorry I'm new to this.
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Old 22nd March 2004, 07:24 PM   #6
jomor is offline jomor  Greece
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Anyway either you need a 4-channel or a 2-channel amp, you should buy a 4 channel amp. This is beacause the price difference is so small, compared to the benefits you will have with a 4 channel amplifier. These are

1) you can bridge the 4 channels into 2 getting much stronger output

2) you can use the extra 2 channels to drive a subwoofer if you ever decide to

3) you can use the amp with any future head unit with four rca outputs or at any future car with more speakers.

4) you can drive your component speakers (or your next component speakers if you dont have any right now) seperately using an active crossover or the build-in active crossover of any future head unit you might buy, to get better result.


I hope this helps
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Old 21st April 2004, 04:57 AM   #7
peet is offline peet  Thailand
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I'm not sure that your amp can select between 2 Ch. and 4 Ch. input. If it has, you can wire only 2 ch input to amp and select 2 ch input then the signal will 4 ch output. You don't need to Y Cable.

Owner's manual can help you!!!.
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