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My Polk Audio wireless subwoofer has developed a hum. What are possible causes and/or solutions?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Ganx
  • 113 Answers

SOURCE: My Polk PSW 303 subwoofer emits a hum when plugged

Hiya sounds alot like there is a power supply issue with the unit that will require repair for it to be doing off or on. Probably wont be to expensive, request a quote first to make sure viable.

Best of luck

Posted on Jul 16, 2009

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  • 308 Answers

SOURCE: Polk Audio PSW202

The power supply or amplifier has a shorted component.

Posted on Mar 12, 2010

  • 40 Answers

SOURCE: 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!

Posted on Mar 26, 2010

jdvillanueva
  • 2098 Answers

SOURCE: polk audion psw250 subwoofer has humming noise

Humming noise on your sound is not due to your speaker but it is come from the amplifier. I've encountered a lot of this problem that is caused by the electrolytic capacitor. If you are a technician first locate for a dry joints on the board and then resolder it using your soldering iron and a high quality soldering lead. Resolder not only the capacitor but also around the output I.C.
If nothing happen then it is coming from your output I.C. sometimes it was leaky/shorted which produces a humming noise but first do the the above mentioned instructions before isolating the defective output i.c.

Posted on Jan 03, 2011

dunnbiker
  • 8546 Answers

SOURCE: Yamaha Rx-V367 Subwoofer not working,

Have you looked at the manual?

The NEW thing doesn't work.

Does the subwoofer work for setup? That would certify the hardware and speaker definitions are ok.

The PC has the responsibility for defining and sending out something between headphone and full-blown 7.1 though the HDMI. Check your PC sound controls and the "Information on HDMI" section of the manual.

For the radio mode, probably the only analog stereo source you have, read up on the STRAIGHT decoding mode and Sound Field programs.

Posted on May 08, 2011

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When my sub is off it hums how can i fix this


Teach it the words ;-)

"OFF"? Turned off, no power?

Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Polk-Audio-RM6750-Speaker-Systems-manual/id/2771dj580/t/2/

Disconnect the input(s) and see if it hums in the absence of an audio source. A bad audio cable shield or unwisely-routed audio cables will allow entrance of unwanted signals from external power sources, magnetic fields, even dimmer-controlled track lights. Sometimes, simply reversing the orientation of the ac power plug can eliminate humming.

Feb 27, 2011 | Polk Audio RM6750 System

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Polk audion psw250 subwoofer has humming noise


Humming noise on your sound is not due to your speaker but it is come from the amplifier. I've encountered a lot of this problem that is caused by the electrolytic capacitor. If you are a technician first locate for a dry joints on the board and then resolder it using your soldering iron and a high quality soldering lead. Resolder not only the capacitor but also around the output I.C.
If nothing happen then it is coming from your output I.C. sometimes it was leaky/shorted which produces a humming noise but first do the the above mentioned instructions before isolating the defective output i.c.

Jan 03, 2011 | Polk Audio PSW250 Subwoofer

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I need an instructional manual for a Polk Subwoofer PSW50


At this link you can see and download the user manual for your Polk Audio Sub-woofer. In case you need further details for installation or in case of a problem or clarification, don't hesitate to post me a reply before rejecting my answer.
If you are satisfied, rate my solution with the "thumbs" or (even better) add a testimonial.

Thanks and regards
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Sep 05, 2010 | Polk Audio PSW50 Subwoofer

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My subwoofer atarted making deep humming sound, then stopped working. I changed the fuse and then when i turned it on it blew the fuse. What can i do?


The voice coil of your woofer is off centered and shorting on the armture causing the speaker to draw too much current. The fuse blew thereby protecting the output stages of your amp. Replace the speaker.

Mar 17, 2010 | Polk Audio PSW150 Speaker

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My Polk PSW 303 subwoofer emits a hum when plugged in and powered off. When the unit is turned on the hum gets louder. At this point the unit is useless. Does anyone know what could be causing this?


Hiya sounds alot like there is a power supply issue with the unit that will require repair for it to be doing off or on. Probably wont be to expensive, request a quote first to make sure viable.

Best of luck

Jul 16, 2009 | Polk Audio PSW-303 Subwoofer

1 Answer

Loud hum on subwoofer.


try another speaker on that channel if you get no sound or it hums then it is time to take your set to a tech your audio out put on that side is damage along with some caps.good luck.

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