Question about Kenwood 103SW Speaker

2 Answers

Indicator light not working and humming noise

I have a Kenwood 103sw powered subwoofer that has a constant humming or buzzing noise when turned on. Noise does not increase or decrease with volume. Noise stops when rca inputs are disconnected. I tried two different receivers but problem persists. Also the indicator light for the mode does not come on when switched to movie mode eventhough the music mode light goes dimmer.

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers
Re: indicator light not working and humming noise

Could it be solved by reversing the AC Plug on this device, matching the other inputs? Hope your board is not blown.

Posted on Dec 17, 2014

Re: indicator light not working and humming noise

Your circuit board is bad not repairable i have the same prob but not kenwood they said it would cost more then its worth.

Posted on Mar 31, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

4 Answers

Klh powered subwoofer model ASW10-120B... when you plug in to power... it makes a loud buzzing/humming noise

I would check the caps on the power supply. They are rather large electrolytic capacitors that will look like they burst and/or leaking. When these die, the caps ground and the sub will make a loud buzzing sound. If you are handy with a soldering iron you can replace them yourself. Replace them with the same voltage or a little bigger and same with the size.

If the cap. says 16v 4700pF on it, for example, a 20v 5300pF or a 16v 6200mF cap. will work for this application.




Jan 05, 2016 | Speakers & Subwoofers

1 Answer

Subwoofer inop

The blue power light merely indicates that house power is getting to the sub. My guess is that the internal power supply reacted poorly to the on-again-off-again power application and something failed

May 04, 2013 | Velodyne DLS-3750 Subwoofer

1 Answer

My subwoofer constantly makes a steady intermittent buzz sound while plugged in, even while powered off.

If it has a 3 prong plug, try a 3 prong adaptor - where only 2 prongs are plugged in. Sub's should not be grounded. If it still makes a hum noise, the amp circuitry may be compromised. Replace the amp with an equal at

Dec 06, 2010 | KLH PSW8100-8 Subwoofer

1 Answer

I have a constant buzz tone coming from my subwoofer. I checked power connection, fuse and volume/crossover settings and nothing makes the tone go away. is there anything else I can do? Is it repairable?

Hello,if your subwoofer cable has gone bad this will introduce a hum(buzz) into your audio.I suggest replacing the subwoofer cable, a standard rca cable will do,and see if the audio cleans up.

Sep 11, 2010 | Snell PS.10mk2 Speaker

1 Answer

What kind speaker use my kenwood powered subwoofer 103SW

It uses a 10 inch, 4 ohm speaker, probably rated at 100 watts. If you are getting no sound, check your connections. Or, the subwoofer amp may be blown.

Aug 29, 2010 | Kenwood 103SW Speaker

1 Answer

I recently connected my satellite reciever to my

Iassume you mean you hear the buzz independently of the audio program - simply connecting the cable causes the buzz?

If tanything in the mix is powered from different AC sources you may have a different ground potential. Sometimes manipulating the orientation of one or more ac plugs will solve hum problems.

Apr 02, 2010 | M&K Sound Mp Series MX-350 MK II THX...

3 Answers

Loud humming buzzing sound coming from subwoofer

make sure you have the speaker connection right if you do then it is a ground problem try plugging it in a different outlet

Dec 16, 2008 | KLH HTA-4906 System

1 Answer

100watt sub

There is a problem wwith teh power supply or the amp section. Does the noise remain constant or does it vary in volume? The sub should have a level control, does the noise vary with that control?

Mar 19, 2008 | Kenwood SW-38HT Subwoofer

4 Answers

Buzzing Cerwin Vega LS-12 Subwoofer

Generally, a buzz from your sound equipment indicates some sort of nearby EMI. The normal culprits and.or possible fixes that I've found are:

- Remove any other electronic devices plugged into the same outlet as your subwoofer

- If the woofer is on a power strip/surge protector, remove it and plug directly into the wall

- If there are any nearby wireless devices (cordless phiones, WiFi eqiupment), disconnect/power down them

- Try connecting different speaker wire between the woofer & the receiver

- Try turning off all other eletronic equipment with the exception of your receiver

Let me know if any of these help and good luck!

Nov 27, 2007 | Speakers & Subwoofers

Not finding what you are looking for?
Speakers & Subwoofers Logo

465 people viewed this question

Ask a Question

Usually answered in minutes!

Top Kenwood Speakers & Subwoofers Experts

Martin Murray

Level 3 Expert

1614 Answers

Michael Thomas
Michael Thomas

Level 3 Expert

3051 Answers

Sudeep Chatterjee
Sudeep Chatterjee

Level 3 Expert

3267 Answers

Are you a Kenwood Speaker and Subwoofer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides