Sound sytem ISSUE

ASSISTANCE Electrical & Entertainment Systems
1

Hey G2IC members I don’t post much, since I always do my research and pretty mechaniclly inclined.

Like the title says,

I recently installed a system on my DB1.

The same system was on my BA4 Lude and didn’t have the same issue. Along with the same head unit too. The only thing I did when installin it onto my DB1 was get new wires to run to the amp

ISSUE:

My subwoofer PULSATES to my engine rythm, even when I shut off the radio, and take off the face plate. . .

So in need of major help its gettin really annoyin

2

ground noise issue. have you updated your grounds in the engine bay? where are you grounding the amplifier for the sub?

3

I only replace the ground tats by the PS pump and made it myself.

The amp is ground to the bolt tat holds the 3rd brake light down o_0

4

How’s the remote lead wired? The sub/amp shouldn’t be doing anything with the deck off.

5

Keep amplifier power ground wires as short as possible. The longer a wire, the more resistance it has. When a current flows through a resistance, a voltage drop is produced. Because of this, the ground reference at the amplifiers circuit board is no longer the same as that at the chassis of the vehicle. This ground potential differential can lead to noise and improper operation of the amp.

or how did you run your signal wires and power cables?

Never run signal wires alongside power cables. This is especially true in installations where high powered amplifiers are used. Large amplifiers are capable of drawing large currents. These currents vary with the musical demand of the program material as does the electromagnetic field surrounding the power cable. The more current that flows through the wire, the bigger this field becomes. If audio cables are located in close proximity to this fluctuating electromagnetic field, noise could be induced into the system.

You can read on with this:http://www.google.com/url?sa=t&rct=j&q=ground%20cable%20for%20amp%20how%20long&source=web&cd=7&ved=0CHQQFjAG&url=http%3A%2F%2Fwww.termpro.com%2Fasp%2Fpubs.asp%3FID%3D121&ei=b6tjT4j3FImusgLmkuGbCw&usg=AFQjCNGfd-CgMSchx-DNBQHC5Pq_RundRw

6

The power wired is running along the passenger side of the car, tucked away nicely too.

And the wires for the amp itself run along the driver side.

That’s why I’m at a stumbble, the same way I had it set up on my Prelude is the same way I set it up on my DB1.

Thanx for the info guys, I’ll tackle find out my problem this weekend comin up, aka TOMORROW!!!

7

The “power” side of your car is on the drivers side, all power leads for the back of the car run down the drivers side, RCA leads should be run down the center of the car.

All leads, [power, grounds, RCAs, and speaker leads should be as short as possible.

My guess is you have a grounding problem, move your amp ground to the floor pan of the car, seat and seat belt bolts/studs, [or any bolt/stud in the floor pan of the car] is the best. 94

8

I had the same issue. It ended up being my ground.
I took a wirebrush to the paint and regrounded it and it was fine.