05 Stereo Amp Bypass?

sjbutane · Post by **sjbutane** » Mon Jan 30, 2006 12:56 am

Hello, maybe this has been posted, but I have been looking all over and I cannot find an answer.I just put in a new JVC stereo, and when I turn it on, I get a pop. Then I get static, and even when my stereo volume is on 1 it's like it's on 5. I noticed there is an amp under the passenger seat and I have deduced it's getting amplified twice, which is causing all these problems. Am I correct, and if so is there an easy way to bypass this amplifier? Thanx!!!Steve

mcgusto82 · Post by **mcgusto82** » Mon Jan 30, 2006 1:42 am

hello. welcome to genvibe.to answer your questions. if you want to bypass it, you can search the wiring diagram for the radio. then splice the ins and outs at the amp. this way, your radio will power up the speakers straight thru.free and easy if you know how to. or there is a noise level reducers out here. it's here. some people have it. plug and it reduces the high output your jvc is making. or maybe there is a faulty connection somewhere. my sony is straight to the amp under the seat. no reducer or bypass. works great.

pwarren4 · Post by **pwarren4** » Mon Jan 30, 2006 2:25 am

You need this:http://forums.genvibe.com/zerothread?id=14516Works good for me -Happy Hunting!

GMJAP · Post by **GMJAP** » Mon Jan 30, 2006 3:54 am

Quote, originally posted by mcgusto82 Â»hello. welcome to genvibe.to answer your questions. if you want to bypass it, you can search the wiring diagram for the radio. then splice the ins and outs at the amp. this way, your radio will power up the speakers straight thru.free and easy if you know how to. A good way to blow your new headunit. You cannot do this. The M&T speakers the factory amp drives are 2 Ohm. Aftermarket head units are intended to drive 4 Ohm speakers.PWarrens's pointer to the thread on the line converter is a good suggestion.

sjbutane · Post by **sjbutane** » Mon Jan 30, 2006 4:46 am

Awesome! Seems easy enough. Seems like the FAI-3 is the same kind of unit, just without the RCA inputs on it (which aren't needed). Do you think it would make a difference?This board is awesome. Thank you for the quick responses!

mcgusto82 · Post by **mcgusto82** » Mon Jan 30, 2006 7:29 am

Quote, originally posted by GMJAP Â»A good way to blow your new headunit. You cannot do this. The M&T speakers the factory amp drives are 2 Ohm. Aftermarket head units are intended to drive 4 Ohm speakers.PWarrens's pointer to the thread on the line converter is a good suggestion.not true!the converter is a better way, but splicing would not damage the headunit. i know first hand. when i first installed my sony over a year ago. i had no noise issues. i was not aware that the harness i had bought didn't have the amp power up connector. so after splicing the pre amp to post amps, i got sound on the driver's side speaker as i had spliced. it's how i trouble shot the problem. then i added a amp power up to the harness. i had the radio powering a single speaker for a few while sat there .. thinking... lol

GMJAP · Post by **GMJAP** » Mon Jan 30, 2006 7:33 am

Quote, originally posted by mcgusto82 Â»not true!the converter is a better way, but splicing would not damage the headunit. i know first hand. when i first installed my sony over a year ago. i had no noise issues. i was not aware that the harness i had bought didn't have the amp power up connector. so after splicing the pre amp to post amps, i got sound on the driver's side speaker as i had spliced. it's how i trouble shot the problem. then i added a amp power up to the harness. i had the radio powering a single speaker for a few while sat there .. thinking... lolYou just got lucky. Not recommended for long-term system use....

mcgusto82 · Post by **mcgusto82** » Mon Jan 30, 2006 7:40 am

there's no luck with electricity..

GMJAP · Post by **GMJAP** » Mon Jan 30, 2006 8:56 am

Quote, originally posted by mcgusto82 Â»there's no luck with electricity.. As a professional electronics engineer, I can tell you that is sooooo wrong!EDITWithout wanting to make this more of a pissing match than it is already , I want to note that although a particular headunit may be designed so it isn't damaged, when you connect an aftermarket headunit that you plunked some change down for, and that's supposed to sound good, to 2 Ohm speakers, it definitely won't perform to specifications in terms of distortion, frequency response, Watts/ch, etc.It's just not a good idea.

frostyGT · Post by **frostyGT** » Mon Jan 30, 2006 10:23 am

Quote, originally posted by sjbutane Â»I just put in a new JVC stereo...and even when my stereo volume is on 1 it's like it's on 5. I have a JVC H/U. Initially, the volume was loud at "1". However, on my HU I could go in and adjust the base level of the volume down to -5. This effectively lowered the main volume minimum level. Works great now.I have the JVC KD-DV5100. Hopefully, you can adjust this on your unit also.

restanim · Post by **restanim** » Thu Feb 02, 2006 5:33 am

This is THE correct way to do what you want to do. I did it and it works perfect.http://forums.genvibe.com/zerothread?id=12040Mike

05 Stereo Amp Bypass?

05 Stereo Amp Bypass?

Re: 05 Stereo Amp Bypass? (sjbutane)

Re: 05 Stereo Amp Bypass? (mcgusto82)

Re: 05 Stereo Amp Bypass? (mcgusto82)

Re: 05 Stereo Amp Bypass? (pwarren4)

Re: 05 Stereo Amp Bypass? (GMJAP)

Re: 05 Stereo Amp Bypass? (mcgusto82)

Re: 05 Stereo Amp Bypass? (GMJAP)

Re: 05 Stereo Amp Bypass? (mcgusto82)

Re: 05 Stereo Amp Bypass? (sjbutane)

Re: 05 Stereo Amp Bypass? (frostyGT)