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About NeverPetABurningDog

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    CarAudio.com Newbie

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  1. NeverPetABurningDog

    4-Channel Amp Wired to 1 Sub Continually Overheats

    My amp's actually at 100w, but your point totally still stands. Could you recommend some good amp brands for me? Also, is it easy to swap subs? Cause I have my sub box bolted into my trunk, so I'd like to keep it there if possible, but I know you can remove the sub from the box. I think what I'll do is keep the 4 channel amp for when (if) I upgrade my speakers and I'll find a cheap sub amp to mount on the other side of the trunk. Do you recommend a 1 channel or a 2 channel amp? And thanks again for all the advice.
  2. NeverPetABurningDog

    4-Channel Amp Wired to 1 Sub Continually Overheats

    Nah man, I appreciate the help. It's better to hear it now than to destroy it without knowing anything. Many questions: Could you elaborate on what you mean by 'overworking?' Why wouldn't you personally use a 4 channel amp for a sub? And what do you mean 'clean power?' What do you mean too little power? You said my wires were fine, what else can I do? Also where is it that I can look for a mono block amp for cheap? Sorry for so many questions, I don't really know anything in the grand scheme of aftermarket car audio. Or anything for that matter. I'm generally curious about all this stuff. Again, I appreciate the help. I would just be helplessly frustrated without guys like you.
  3. NeverPetABurningDog

    4-Channel Amp Wired to 1 Sub Continually Overheats

    The quality could be it. It's a PlanetAudio mosfet amp (I don't know what mosfet means or if PlanetAudio is high quality or not but there ya go). The problem is that it goes into protect mode because it gets so hot. What does bridging/unbridging do to the impedance? I notice I have much less heat production when I don't bridge channels 1 and 2, and rather just put it to channel 1, though the sub is considerably weaker. Does the unbridging change the impedance of the sub or the amp so that the amp puts less power out? As for breathing room, it's mounted on its side, so it should have room enough I believe. I'll attach a picture below.
  4. Hello friends. My amp and sub setup in my trunk works well except that the amp overheats regularly. It's a 4-channel amp, so I have two options for wiring the sub: bridged and unbridged. When it's unbridged, it's weak but it doesn't overheat as much. When it's bridged it sounds awesome but overheats after a few minutes, depending on the temperature outside. At first I thought that the ground wasn't good enough, so I moved it to the one of the bolts on the rear strut tower and sanded down every surface until shiny metal. I also cut the ground wire down to 18" or less. It still overheats. Maybe I need a higher gauge wire? I went to this audio shop and this guy told me to try switching the sub from channels 1 and 2 bridged to channels 3 and 4 bridged. So I did. Not sure what it did. I also might need to tune the setup more accurately, but I don't know that that has much to do with overheating issues. My car (95 Civic if you're wondering) came wired by the previous owner for a subwoofer. 4 gauge power wire from the battery to the trunk, 4 gauge ground, and a remote wire and RCA cables from the radio to the trunk. Power and ground are both OFC. Back in April, I got a used amp and a sub and put it in my trunk. I don't know much about audio/electrical, but I'll list what I know about my setup below: The amp I got is a PlanetAudio 4-channel amp (I know it's meant for speakers, but it at least works for the sub and I got it for $50). Here it is. The sub is a Pioneer. Don't know the model number, but the reading on the multimeter at the terminals tells me it's a 4-ohm sub. It's a single voice-coil subwoofer. What I don't understand is what bridging does to the impedance of the circuit. From my understanding, you want to match the impedance as close as you possibly can. So, if my amp is 4 ohms, I want a 4 ohm speaker to match it. Does bridging channels 1 and 2 put the impedance at 2 ohms and make it unstable? Or does running the sub on 1 channel put it at 8 ohms and make it more stable? I don't quite understand. Another quick few things. I have no money, but I still appreciate advice like "get a new amp" or "get a fan to blow air on it" even though I won't be able to follow through with it until I pay for college. Advice concerning the wiring will be much more valuable to me. Thanks for the help, guys.