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defective channel in multi-channel amp

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Old 05-08-07, 06:46 PM
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olddog
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Default defective channel in multi-channel amp

i was getting a crackling sound from a the left front speaker in my car and thought the speaker was blown or was touching ground somewhere. So i rewired the entire car today, and i realized that the 2nd channel of my amp is what is causing the crackling sound in my speaker. the remaining speakers hooked to the other channels are fine. Whenever i try to connect a speaker to it, it cuts the music even from the remaining three speakers for a quick sec and then brings it all back with the crackling sound/cutting off from the speaker connected to the 2nd channel.
i connected the speaker to another channel and it works fine. i then connected a different speaker to that channel and the problem happened again. thats how i knew it was that channel that had a problem.
What could cause this single channel to be acting up?
Is my amp toast? Can the channel be fixed?
any info is appreciated.

olddog
Old 05-08-07, 06:58 PM
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88supramki
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what kind of amp? it can probably be fixed by sending it to the manufacturer, but it'll cost you unless you know someone who can make a receipt for you. go get to know your local warranty guy at a car audio shop

trust me, we can work magic sometimes
Old 05-08-07, 08:32 PM
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MJHSC400
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Notice he said "WE" -- as in him--
Old 05-08-07, 09:47 PM
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88supramki
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hahaha, yes yes. I am a part of the "We" when I refer to the warranty people at stereo shops.
Old 05-08-07, 10:34 PM
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MJHSC400
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I think the amp Mr. Olddog has is a JL 6453 or something like that too--
Old 05-08-07, 11:07 PM
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Originally Posted by MJHSC400
I think the amp Mr. Olddog has is a JL 6453 or something like that too--
Mr olddog? the amp is actually an Alpine V12 FX353.
i don't know if any warranty claim can be done as i got this used from a local guy about a year ago.
any other options on fixing this? or should start looking for another amp?
Old 05-09-07, 08:30 AM
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88supramki
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alpine will still fix it, but they will charge you for it. or you can look for another amp.

unless you know someone who can fix it...which i don't normally recommend
Old 05-09-07, 09:42 AM
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olddog
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90X2 for front
60X2 for rear
at least 150X1 for sub
all RMS

which not-too expensive amp can get me this?
and i really would like the rear fill as i know a lot of folks here would say"just forget the rear speakers". Nope, i bought them and so i will use them. i dont mind an amp that can only give 80-90% of what is needed.
thanks
Old 05-09-07, 10:12 AM
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vin 78
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http://www.edesignaudio.com/edv2/pro...roducts_id=550
need power? lol

hurry, the price will go up
Old 05-09-07, 10:21 AM
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MJHSC400
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Your simplest answer is something that's 85~100 x 4 plus a sub channel OR with a seperate amp for the sub-- Maybe the cheapest too--

Here's an older model PPI pcx 5800 5ch in mint condition-- BUY IT!! It's about $350 shipped--

50x4 4ohm, 100x4 2ohm, sub= 200x1 4ohm, 400x1 2ohm -- 12.5v -- At 15v, the 4ch section will do more like 70x4 -- More than enough-- I promise it's a good bit stronger than that V12-- and cleaner-- These are top notch -- not many better



----------------------------
An MTX 5400x can do the job well too - I promise you wouldn't be disappointed-- 70x4 is 12.5v -- so at 15v it's about 85x4 -- plus a 220x1 2ohm sub channel that's class d as well--
You can still find them out there- sometimes on ebay and craigslist-- They were only rated at 25x4, but ---
Here are some reviews-- http://www.carreview.com/mfr/mtx-aud...0_1806crx.aspx

Last edited by MJHSC400; 05-09-07 at 05:09 PM.
Old 05-09-07, 11:01 AM
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Originally Posted by vin 78
http://www.edesignaudio.com/edv2/pro...roducts_id=550
need power? lol

hurry, the price will go up
Damn that is a sexy amp. Physically & performance wise... price is not bad for what you are getting. I've been out the car audio loop for a few years. Is Elemental top shelf doo doo? Planning a full system in my 2GS with 1 5 channel amp to keep it simple... I have a pristine Alpine V12 in the garage, but want a little more headroom...
Old 05-09-07, 05:07 PM
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MJHSC400
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The ED amp is top shelf-- check their forum and other audio forums- they're seeding the market --

That ppi amp is gonna be hard to beat-- it's the old US built line-- mint-- really hard to beat--
Old 05-09-07, 06:23 PM
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88supramki
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now that's good ol PPI stuff right there
Old 05-09-07, 08:04 PM
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MJHSC400
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That PPI amp would've set ya back close to $800 or $750 back in the day-- (2000 ish) --
Old 05-09-07, 08:59 PM
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Default amp

Originally Posted by vin 78
http://www.edesignaudio.com/edv2/pro...roducts_id=550
need power? lol

hurry, the price will go up
damn =, that would definitely solve my problem and keep it all simole. But unfortunately, price is way above my budget. and to think i still have to convert that to canadian and since its new, custom taxes at the border.
need something cheaper.


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