CRACKING NOISE COMING OUT THE SPEAKERS

That noise is caused by a failing component in the sounds amplifier circuit board.

It seems you needs more power to maintain the level of good sound.Maybe the maximum volume is 30 - then the mininum is 15 and you can't hear any cracking sound. If you exceed 15 the minimum, as you said starting 17 - 20 you hear crackling sound .Then you reach ,what they called the "cliping level"so much distortion and crackling sound,your stereo too small to accomodate .You must add a power amplifier so crackling will gone and to fit your listening pressure...

Hope it may help you;

Regards,
VOTIT

Panasonic SC PT860 Manuals
The above link is the owner's manual - it may help.
Here are some other ideas:
Try to find out if the crackling sound is coming from all speakers or just one - you may just have one bad speaker.
If the crackling happens at high volume settings, you may be overdriving the system - you'll just have to turn it down!
Try turning down the bass or the subwoofer level.
Is the crackling present with all sources (TV, cable, DVD, bluetooth)?

A contaminated wave guide cover will crackle and spark.
They should be periodically checked, cleaned or replaced.
Contact Maytag for replacement parts.
Hope this fixes your noise.

crackling in the speakers of 42"flat screen tv

I have got the same problem as well and havent been able to find where it is coming from

I just took my sub apart and found that the surround on the driver speaker inside the sub was totally crumbled and lying in pieces throughout the sub box.

I'm looking around now for specs on the sub speaker so I can find a replacement.

If the sound FLUCTUATES up & down, try turning off the AutoVolume in the sound menu. You didn't say if it's one or all speakers crackling. Crackling is either a speaker or circuitry issue. Adjust the balance away from the speaker that crackles, if it stops, that speaker is probably "fried". If it still crackles, I'd turn off the speakers and run the sound thru a stereo for the quick, cheap fix. My Samsung (10+ years old to be fair) crackles due to a circuit issue but if I SMACK the left side speaker (behind which is the sound board and side panel connectors) it stops for a while. Maddening. I think I broke it squeezing it into the furniture it's in, pressing on the protruding RCA plugs. Dumb design.

Hello Sgarmekiss:

That issue sound like you will need to have your small signal board repalced by a repair center.

I just bought a used 60 inch rear projection tv. The picture is fine except I have a crackling sound coming from the front of the tv also. What's the deal?