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New member
Username: Daven

Post Number: 1
Registered: Jun-04
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I have a focus that im trying to put a sub into. Now i have the sub, but soon im going to get a amp. Its a lignting audio 300w sub, with probly, a 300w amp. Now my question is the sub is already hooked up to the system, but not through the sub output on the header, i really dont want to screw with the stock header and i dont even know if it has a sub output, so can i just rougt the amp to the sub, and not have to go through the head unit?
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Bronze Member
Username: Cainer

Camberley, Surrey
England

Post Number: 91
Registered: May-04
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your manual for the amp should tell you how to do it, you just run speaker wires into the amp through the high pass frequency input
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Gold Member
Username: Glasswolf

NorthWest, Michigan
USA

Post Number: 3307
Registered: Dec-03
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a "header" is a part of your car's exhaust.
I wouldn't suggest putting an amplifier on that.
It's loud enough already, hence the use of a resonator and a muffler.
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New member
Username: Daven

Post Number: 2
Registered: Jun-04
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by header i mean head unit, i know that would be hard to figure out though, well, for some people.

Thanks cainer, guess thats what ill do.
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Gold Member
Username: Glasswolf

NorthWest, Michigan
USA

Post Number: 3310
Registered: Dec-03
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I know whqat you meant. My point was to use correct terminology and not make up words to be lazy.
I don't call an amplifier a spark plug, either.
All you accomplished was to be confusing.

if you have a stock head unit, you won't hae any line-outs.
you'll need to use an amplifier with speaker-level inputs, or a line-out convertor (LOC)
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New member
Username: Daven

Post Number: 3
Registered: Jun-04
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Yea, i was just messing with you glasswolf, I am a bit lazy at times...

One more question,
Will i notice a big diffrence in sound when it comes to useing the speaker wire vs, the lines?
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Silver Member
Username: Jonathan_f

GA
USA

Post Number: 214
Registered: May-04
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There will be a difference, how big it is depends on your ears. Basically, a head units amp is providing the signal with speaker outs, and a head unit's amp will have more distortion and will clip quicker than RCA preouts will. Preouts have a much cleaner sound.
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Bronze Member
Username: Daven

Post Number: 12
Registered: Jun-04
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how about the Rockford Fosgate 451S
Amp 450 Watt 2CH Amp, Can someone confirm that i can use this one?
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