I have a 2ohm DVC Alpine Type R 12" hooked up to a 750s SoundStream amp. It's wired to 1 ohm which the amp is stable at on a high current setting. The headunit is a Pioneer. Sometimes while listening to music the sub will start rumbling really hard and I will have to cut the stereo off. The headunit has a setting to turn the subwoofer on and off but cutting it off from there dosn't stop the rumbling. It will only quit when the unit is off. Usually when I cut it right back on it will start doing it again. If left sitting for a while (like over night) it will not do it when I turn it on again then. At least not for a while. Everything is hooked up correctly as far as I know. I am pretty knowledgable about car audio and I've never had a problem like this with a system before. I was thinking it might have to do with the fact that I have no trunk liner right now and the amp is sitting directly on the same metal it is grounded to but I'm not sure if that really makes a difference. I've bolted amps down to metal parts before and had no problem so I don't know. If anyone has a clue what may be going on please let me know what I should check. Thanks in advance.
2007-01-22 05:19:05 · 5 answers · asked by Anonymous in Cars & Transportation ➔ Car Audio
It is picking up your alternator sound. or other frequencies. Make sure you have a good ground on your amp. if that doesnt work get a noise filter from wal-mart circuit city etc. VERY VERY easy to install. Also you need to put a piece of carpet or wood under your amp. For some weird reason if the amp sits on metal where the ground is connected the power also is connected.
2007-01-22 05:35:45 · answer #1 · answered by RYAN G 1 · 0⤊ 0⤋
Your amplifier is the problem area. By switching the sub-off on your HU, and it still does it, that indicates to me that it is the amp. I do think your grounding for the amp is causing the rumbles. Try re-grounding the amp and then isolate the mounting surface. This should reslove any ground loop problems.
2007-01-22 06:20:48 · answer #2 · answered by Andrew K 3 · 1⤊ 0⤋
One of two things is happening. You have a lose ground wire. or your head unit has a short. Let me know if you need anything. I can get you whatever your looking for and my prices rock.
2007-01-22 05:50:42 · answer #3 · answered by purextremeaudio 3 · 0⤊ 0⤋
your amp may be stable at 1 ohm but your sub may not be. check on the specs
2007-01-22 05:44:17 · answer #4 · answered by jon k 4 · 0⤊ 0⤋
I've had that problem before.....it's kind of complicated to explain in words, but it's because your amplifier is too strong for your sub. Your best bet would be to pair your subwoofer. I paired mine's and right now they're working great.
2007-01-22 10:23:01 · answer #5 · answered by xj-9 4 · 0⤊ 1⤋