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Old Apr 5, 2009 | 01:46 PM
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Default amp question

so im a noob with audio and i had a question

i have an amp in my car, and its hooked up and working. does it do do anything to my speakers and audio output or does it only work with a sub?
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Old Apr 5, 2009 | 02:01 PM
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Default Re: amp question

Do you have a sub in your car? If not it should be powering your door speakers. Pull the fuse out of the amp and see if you still get audio output.
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Old Apr 5, 2009 | 07:09 PM
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Default Re: amp question

no i dont have a sub. are there amps specifically for subs and amps specifically for speakers? cus thats what the guy at fry's electronics told me.
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Old Apr 5, 2009 | 07:11 PM
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Default Re: amp question

There are amps that are designed with a Low-Pass or High-Pass filter which only allows certain sound frequencies to get through and be amplified. LP for subs, HP for regular in car speakers.
A sub amp is usually a mono(meaning 1 channel) amp as there is no left and right.
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Old Apr 5, 2009 | 07:35 PM
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Default Re: amp question

Originally Posted by fergy016
There are amps that are designed with a Low-Pass or High-Pass filter which only allows certain sound frequencies to get through and be amplified. LP for subs, HP for regular in car speakers.
A sub amp is usually a mono(meaning 1 channel) amp as there is no left and right.

oooh thanks for the info! so would i know if my amp is a LP or HP? everytime i turn my deck off, i hear a click from my amp in the back. (just saying)
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Old Apr 7, 2009 | 09:08 PM
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Default Re: amp question

The amp is probably wired through a relay which probably makes the click you hear.

As far as knowing LP and HP you have to read the specifications on the box of the amp you're buying or read up on the specs on the product page if you're buying online.
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Old Apr 7, 2009 | 11:11 PM
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Default Re: amp question

oh!

well the amp is already installed in my car, and i bought the car with it. so i dont have the box. ill get the make and model and search it up tomorow.

i need to get new speakers too, no bass at all. and when i do turn it up, it just gets staticy and rough when the bass hits. new speakers will do the trick right?
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Old Apr 8, 2009 | 09:37 AM
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Default Re: amp question

Originally Posted by patrickstar
oh!

well the amp is already installed in my car, and i bought the car with it. so i dont have the box. ill get the make and model and search it up tomorow.

i need to get new speakers too, no bass at all. and when i do turn it up, it just gets staticy and rough when the bass hits. new speakers will do the trick right?
they are prolly blown,
or the amp is switched the high pass filter (HPF) which means no bass gets to your speakers, just highs, that would explain no bass.
or its both.
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Old Apr 8, 2009 | 11:00 AM
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Default Re: amp question

Originally Posted by patrickstar
oooh thanks for the info! so would i know if my amp is a LP or HP? everytime i turn my deck off, i hear a click from my amp in the back. (just saying)
that click is just the REM wire from your deck letting your amp know to turn off. think of it as a switch for the amp
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Old Apr 8, 2009 | 09:37 PM
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Default Re: amp question

Your amp will have switches on one side and there may be one that is lp-hp switch it to lp if your running your subs off of it, or hp if just cabin speakers. If it is running both there should be a switch for four speakers, and one for sub. This is when you want to figure out make/model of amp and goto that manufacturers website and download the instruction manual.
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Old Apr 10, 2009 | 08:50 AM
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Default Re: amp question

well i checked and i hav a kenwood kac-7295. it has a switch that goes from of-lp and stereo-mono. so i guess this is only for a sub? i took the fuse out, and nothing changed in my speakers. and whats a bridge-able amplifier?
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Old Apr 10, 2009 | 09:16 AM
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Default Re: amp question

Originally Posted by patrickstar
well i checked and i hav a kenwood kac-7295. it has a switch that goes from of-lp and stereo-mono. so i guess this is only for a sub? i took the fuse out, and nothing changed in my speakers. and whats a bridge-able amplifier?
for example a 2 channel amp can be bridged by taking the positive from 1 channel and the neg from the other channel and bridging them together to create a more wattage into 1 channel. Say your amp does 100x2@4 ohms. 200@2@2ohms. usually when you bridge the 2 channels. it will make about 300-400 wattsx1@4 ohms.
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Old Apr 10, 2009 | 01:08 PM
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Default Re: amp question

Originally Posted by Jturtle
for example a 2 channel amp can be bridged by taking the positive from 1 channel and the neg from the other channel and bridging them together to create a more wattage into 1 channel. Say your amp does 100x2@4 ohms. 200@2@2ohms. usually when you bridge the 2 channels. it will make about 300-400 wattsx1@4 ohms.
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Old Apr 10, 2009 | 01:09 PM
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Default Re: amp question

oh fancy drawings huh? lol
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Old Apr 10, 2009 | 09:18 PM
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Default Re: amp question

Originally Posted by Jturtle
oh fancy drawings huh? lol
I heart google image search. LOL.

Last edited by fergy016; Apr 13, 2009 at 06:17 PM.
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