RyanR

Hopefully someone can help me here.

My sub is going quiet then loud or vice versa. I will be driving and take a sharp turn or something and my sub will go quieter for a second or two and then go loud. I took it into where I got my stereo installed and of course they couldn't get it to go quiet. Also, one other thing, my sub makes noises even when I have it off is that a problem?

CanadianBronco

Yeah, it is.

Sounds like a bad ground or signal (Loose/Not bare metal touching/Bad spots for ground wire.)

Is the amp and box bolted down?

LOWTONEZ

iTrader: (3)

When you take a sharp turn and it goes lower it is due to voltage drop from your power steering taking it, so like bronco said it could be a bad ground, posibly your electrical cant keep up with all the demands of your stereo when you drive your car.

RyanR

ah I never actually thought about the electrical system not being able to handle it. Sometimes it goes lower when I go over a bad bump too though but that could be ABS or traction control or something kicking in. My lights have never dimmed. I only have one amp and one sub. The amp is a M-605? and the sub is 12" Type R. So could it be my electrical or just a bad connection?

CanadianBronco

either start checking with a multimeter.

JohnVroom

Check your wire connections, while the system is up and running do a 'wiggly-jiggly' of your wires (ALL of them power, RCA, speaker) and see if you can reproduce the issue. Does the affect happen on L turns/ R turns/ brake application/ bumps etc, since that is what you need to reproduce because this is a mechanically induced electrical problem.

And I bet your installer didn't take it for a ride did he... shame on you


The problem could be in the trunk with the gear or even in the dash... or even inside an amp or speaker box.

RyanR

Well I got it installed in January I believe and it worked perfect untill around May when I started to notice the bass going lower at times. So I brought it in and it ended up being the fuse. It was fine untill around July.

Smoke_31

It sounds to me like a loose connection. Pull your sub out, check the wires. Check your ground.

Ensure that nothing is grounding out. If it is happening on bumps and turns, it has to be a loose connection.

Also, check to see if the wires on the sub itself are still connected properly.

fuzionrolla

sounds like a bad connection some where