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Polk subwoofer making crackling noises

I have a polk subwoofer that will distort if the bass is too bassy. It used to run fine with nice tight bass then after a couple of years started to distort. It still sounds good for soundtracks but when it comes to certain very bassy parts of the soundtrack it will cut ut making crackling noises which irritates me. So what do I do? Can this be fixed ? I paid almost 400 4 years ago. Does this mean it's time for a new one or can this be fixed?

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Re: polk subwoofer making crackling noises

Yea, now its time to replace it! the magnetic effect is weaken which makes the very bass low frequency sound to be distorted! You should re engergise the magnet of the subwoofer or should buy the new!

Posted on Dec 08, 2007

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My Paradigm PDR 12 subwoofer has started to make crackling noises. Is this an amplifier malfunction?

Depends when it makes these crackling noises.

If it's when the sub isn't being driven, then it could be the amp. (Check for bulging capacitors on the amp board). If it's when you move cables about then it could be a broken lead or a dry solder joint on one of the inputs.

If the crackling is when the sub is running then it might be the voice coil has distorted due to being overdriven with a poor and highly distorted signal.

Sep 07, 2014 | Speakers & Subwoofers

2 Answers

My subwoofer cuts out when their is only talking and there isnt any music or bassy stuff and stays off, once the music and anything that has bass starts up then it will come back on maybe its a setting...

You don't mention the sub model. Many have a setting for automatic response in the presence of a signal. You could try teh alternative to auto, maybe Always On.

Jul 22, 2011 | Speakers & Subwoofers

1 Answer

How can I measure the sound quality from my receiver/amplifier and speakers? It sounds distorted to me and the components aren't cheap (Onkyo receiver and Polk tower speakers)

And if you measure distortion, then what? Do you have a scope and a spectrum analyzer and a calibrated sound source?

The Mk.1 Ear can decide if it likes what it hears. Some people LIKE excess bass, for example.

Determine if it's source-related, cable-related, channel-related, speaker-related by swapping or focusing on one at a time and comparing. Try naming the products and look at the manuals for correct setup.

Jun 18, 2011 | Polk Audio Monitor 70 Main / Stereo...

1 Answer

My sub woofer cracks & acts like the speaker is blown. Hooked it up to another source & the speaker is fine. What should I look at next?

So you're saying one source makes it crackle and another source doesn't. That suggest the sub is fine and we should examine the source and it's signal path. Please elaborate as much as you can on what it it/they are.

Apr 01, 2011 | Polk Audio PSW202 Subwoofer

1 Answer

Optimum set up for Polk Audio PSW 10?

Run 2 RCA cables from the two Purple connections on your Receiver (Labled "PRE OUT SUBWOOFER") to the Red and White connectors on the back of your Sub (it does not matter which Purple connecter you plug into either the Red and White)

Set the volume control on the Sub to about 75%, and keep the power switch in the "ON AUTO" position. To set the Low Pass value, look at the back of one of the front speakers in your setup, and note its frequency range (will look something like 100Hz - 17kHz). Set the Low Pass at a value slightly higher than the low value on the back of your surround speakers.

To set the phase switch, stand in the middle of the room with some music on (something with some bass, but not over the top bass) and have someone switch between 0 Deg and 180 Deg. Listen for which setting sounds "Louder and Fuller". This is the one you want. You will need to do this each time you move the Sub, as its position may change its phase in relation to the rest of your system.

Good Luck!

Mar 26, 2010 | Polk Audio PSW10 Subwoofer

1 Answer

I have a wharfedale svp15 passive loudspeaker. The subwoofer has started crackling and popping at low volumes and has no deep bass. At high volumes it sounds great as usual and can't tell if the crackling...

Information I find online says it an Active Subwoofer, so that introduces its own amp as a possible source of the symptom. If there is another version of this model that's passive, all the more reason to believe the amp is the problem because passive speakers don't spontaneously emit sounds.

If there was a physical reason for the crackling I would think more power would make it worse or blow it up.

A poor sub signal cable connection might explain low current anomalies if random noises are entering the signal path.

Make sure the signal, speaker and power cables are not aligned parallel and close to each other.

Feb 26, 2010 | Speakers & Subwoofers

1 Answer

SPL8R Velodyne sub - Same probelm

Go to the Velodyne web site and check the service center locations.

They may have one in your area.

It sounds like the amp may be the problem. That may be all you need to send.

Best bet, Contact Velodyne.

Jun 08, 2009 | Velodyne HGS-10 Subwoofer

1 Answer

Crackling coming from Velodyne DD-10 subwoofer

One of 2 things is going on.

First, the servo mounted in the driver may be going bad or is picking up some noise.

Second, Something in the amp section is going bad, hard to pinpoint the exact problem.

you say that it plays, so I tend to think it is the driver mounted servo unit.

If it is within the warranty time, take the unit back to the retailer you purchased it from, if not contact Velodyne for repair.

Mar 18, 2009 | Velodyne HGS-10 Subwoofer

1 Answer

Cerwin Vega ve-28s subwoofer and new Cervin Vega 2-way satellites

I bought my VE-28s and it did exactly that crackled, cerwin replaced part in amp but few months later problem persisted. they then replaced entire amp assembly and its been fine. i really push it to and its been fine. to test it, unplug the connection from amp/ reciever and see if it persists. if so its the sub, if not its the amp/ reciever. dont dump it, these subs really crank and can put out some deep loud bass.

Oct 28, 2007 | Cerwin Vega VE-28S Subwoofer

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