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#1
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Amp randomly turns off - Confused
Hey, I'm having a rather strange issue, and it's starting to give me a
headache. Ok, some background information. Audiobahn Bandpass Box 2x 12" Audiobahn Subs, 1000w peak 800w rms Soundstorm 1000w Amp Heres my story.. My friend helped me do the installation of this system. I drive a 99 Saturn SC2. We wired everything up correctly the first time, or so we thought. The Amp would turn off after 1-5 minutes of use, then randomly turn back on. So I looked at his install job and saw he wired the amp to the fusebox, instead of straight to the battery. Fixed that. Thought I was home free, until a hour later. The amp shut off again, and it would come back randomly a few minutes later. So I figured it was a grounding problem, as it wasn't that great. I was using a 1.5 ft 4 gauge wire, that was fastened around a little cutout in the trunk frame, as my amp is screwed into the back of the fold down seats. So I ditched that, went to home depot, and the guy recomended 8 gauge wire, so I got 6 ft of 8 gauge grouding wire. With this extra slack i was able to reach to a nice nut in front of the trunk, and bolted it on the right way. I thought for sure this would fix the problem but no dice. Now this leads me to think: 1. Bad amp? It does have a built in fan. 2. Need 4 gauge ground wire? 3. Maybe the fuse gets too hot and separates, then when it cools it resets itself. But in my defense, the subs were never played to "ear splitting" level. So why it does this is beyond me. The ground/positive wires were never warm when the amp cuts off. |
#2
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Forgot to add, the Bandpass box has a blue neon, it has a wire into the
grounding on the amp. Maybe the Neon is causing it to go out? Who knows. |
#3
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wrote in message ups.com... Hey, I'm having a rather strange issue, and it's starting to give me a headache. Ok, some background information. Audiobahn Bandpass Box 2x 12" Audiobahn Subs, 1000w peak 800w rms Soundstorm 1000w Amp Heres my story.. My friend helped me do the installation of this system. I drive a 99 Saturn SC2. We wired everything up correctly the first time, or so we thought. The Amp would turn off after 1-5 minutes of use, then randomly turn back on. You're problem could be any number of things, including a defective/damaged amplifier. But generally when an amp turns itself off after a certain period of time and then turns back on, this usually means the amp is employing some type of protection circuit, usually thermal protection. If you had a bad ground, the amp wouldn't turn on at all, so I doubt your problem has to do with grounding. I would start by checking the input voltage at the amp (using a multimeter). If the voltage ever drops below 10 volts, this would cause the amp to shut down. If the amp is only receiving 11 volts or so, this means it would have to draw lots and lots of current to produce the desired watts (Ohm's law). This would cause the amp to get way hotter than it should and could be a possible source of the problem. This would be a good place to start. MOSFET |
#4
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Today amp has some kind of protecting against temp which design to turn off automatically. My amp manual said the amp shout down when the heatsink temp reaches 176F and turn back on once the unit has cooled down below that point. |
#6
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Mike wrote: wrote: Today amp has some kind of protecting against temp which design to turn off automatically. My amp manual said the amp shout down when the heatsink temp reaches 176F and turn back on once the unit has cooled down below that point. Would having the amp on the back of my rear seat (on a 100 deg angle) cause it to cut out? I put under the space of passenger side. Did you connect 3 wires (+12V, REM, Ground) correctly? I did noticted that my amp got hot when I connected 12V and REM with a single 12volts. Now I got figured out the right correct. But I still don't know whether my amp still get hot or not. I'm going to find out....But my amp never shut off... |
#7
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"MOSFET" wrote in message ... wrote in message ups.com... Hey, I'm having a rather strange issue, and it's starting to give me a headache. Ok, some background information. Audiobahn Bandpass Box 2x 12" Audiobahn Subs, 1000w peak 800w rms Soundstorm 1000w Amp Heres my story.. My friend helped me do the installation of this system. I drive a 99 Saturn SC2. We wired everything up correctly the first time, or so we thought. The Amp would turn off after 1-5 minutes of use, then randomly turn back on. You're problem could be any number of things, including a defective/damaged amplifier. But generally when an amp turns itself off after a certain period of time and then turns back on, this usually means the amp is employing some type of protection circuit, usually thermal protection. If you had a bad ground, the amp wouldn't turn on at all, so I doubt your problem has to do with grounding. This sir, I beg to differ. My legacy amp (I know woot woot!) turned on, the light on the diamond lit up, and all was good, but I got no sound, none at all. Then I realized the ground was real warm, switched it, played it, bumped till my heart was content, and took my lesson, and learned from it. |
#8
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This sir, I beg to differ. My legacy amp (I know woot woot!) turned on,
the light on the diamond lit up, and all was good, but I got no sound, none at all. Then I realized the ground was real warm, switched it, played it, bumped till my heart was content, and took my lesson, and learned from it. Well, OK, fair enough. I never said I knew everything. In fact the funny thing is that the older I get, the more I realize how much I don't know. MOSFET |
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