Crackling Noise Coming From Amp

longview21guns

longview21guns

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Jan 6, 2017
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#1
I currently use a Ibanez SDGR 250 Active Bass, and just started using again a Fender 25 watt Rumble amp that I got a while ago. A crackling noise now comes from the amp both while I am playing and when I just have my bass plugged in. I switched to a new cord to see if that was the problem, but the crackling noise is still there. Could it be the battery in my bass?

I've only been playing bass for a few months, and was unable to find the answer to this question on the internet.
 
#2
First off, remove the cable and the bass from the amp and see if the issue persists. If the issue stops, it is likely within your bass. The issue may be your battery but it may be static electricity or a dirty pot as well. We'll need to narrow it down. Does anything impact the noise?
 
#5
By 'crackling' I assume you mean crackles and pops that happen randomly and not just distortion while you're playing. The most common causes of 'crackling' sounds:
1) Loose or worn out OUTPUT jack. Especially the edge-mounted barrel jacks. Wiggle the cable while the bass is plugged in to test. The only way to fix it is to replace it.
2) worn out volume control on bass. (Crackle noise happens when adjusting the volume knob.)

3) worn out volume control on the amp. Crackle noise would occur with no bass plugged in.

4) Loose wire or loose pot terminal making contact with the shielding in the control cavity. Do any of your knobs feel springy when turned all the way to the left or right?

5) Loose battery clip. Unlikely, but worth a look.
 
#7
I just changed out the battery in my bass. It didn't help with the crackling noise, but it was probably time for me to be changing my battery anyways. I think the issue is with a loose wire or pot terminal making contact with the shielding in the control cavity.

Ways to go about fixing this?
 
#10
longview21guns said:
I just changed out the battery in my bass. It didn't help with the crackling noise, but it was probably time for me to be changing my battery anyways. I think the issue is with a loose wire or pot terminal making contact with the shielding in the control cavity.

Ways to go about fixing this?
Click to expand...

Have you popped open the cavity and confirmed this? If your hot connects to your shielding then you get no output, not crackling.
 
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