Question about Mordaunt Short 502THX Main / Stereo Speaker

Open Question

Subwoofer and humming sound

I have a mordaunt short MS909W Subwoofer that has been hooked to my pioneer receiver for over two years. A week ago a loud humming sound started coming out of the subwoofer and when you change functions or hit mute there is a loud thump. I have not disconnected anything. It just started humming and the subwoofer is not working.

Posted by on

2 Suggested Answers

dunnbiker
  • 8546 Answers

SOURCE: how to connect a mordaunt short ms907 subwoofer?

You feed it the Subwoofer Line Out (if you have one) or the High Level (Speaker) Outputs of an amp or receiver.

All you will get for output from a laptop or other source would be 23-150hz.

Here's the manual.

http://www.mordauntshort.com/assets/documents/MS907W_Manual.pdf

If you feed it speaker-level inputs because you DON"T have a subwoofer Line Out you can drive satellites from your own amp or receiver THROUGH the subwoofer. It doesn't actually drive other speakers, if that's what you're looking for.

The Line Output of the subwoofer would be to feed another amplified subwoofer.

Posted on Apr 27, 2009

  • 63 Answers

SOURCE: subwoofer not working

i think it is a shortage with your cord connecting to you subwoofer

Posted on Sep 27, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

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.

when-plug-in-power-makes-loud-buzzing-lgqxs5x4gp2eri5a2qchwtne-5-0.jpg

when-plug-in-power-makes-loud-buzzing-lgqxs5x4gp2eri5a2qchwtne-5-1.jpg

when-plug-in-power-makes-loud-buzzing-lgqxs5x4gp2eri5a2qchwtne-5-3.jpg

Jan 05, 2016 | Audio Players & Recorders

1 Answer

No sound from sub


  1. Are the stereo speaker wires run to the subwoofer and out to the stereo speakers
  2. Make sure the notch filter is off
  3. Refer to the manual on line: http://www.manualslib.com/manual/105794/Mordaunt-Short-Ms909w.html?page=7#manual
  4. READ THE MANUAL

Nov 12, 2013 | Mordaunt Short Aviano 7 - Powered...

2 Answers

Pioneer VSX-822-k Subwoofer problem


Go to manual setup, selct the subwoofer and set it to Pus.

Jul 29, 2012 | Pioneer Vsx-822-k 5.1-channel 3d-ready...

2 Answers

Just fried my 2nd home stereo receiver


yeah check the ohms for the receiver an see what the subwoofer ohms are.that can fry them

Oct 04, 2009 | Pioneer VSX-D509S Receiver

2 Answers

How to connect a mordaunt short ms907 subwoofer?


I guess you don't have the owner's manual for this?
You can get it here:
MS907 Subwoofer manual
The manual contains connection info.

Apr 27, 2009 | Mordaunt Short MS-308 Subwoofer

2 Answers

Sunfire Subwoofer 110 Noise on input plugin


A few more questions-
Does the sub hum without anything plugged into it except for power? If it makes a real loud hum almost a squeal then I think the rca cable between the receiver and the sub is dead shorted and needs to be replaced. If it's more of a low level hum, then it's a ground hum caused by many things, ie........the receiver and the sub being on different power circuits in the house.......sometimes diconnecting the cable tv feed as it enters the room while the sub is connected and humming to see if it stops........the easy fix sometimes is using a 3 to 2 prong ac adapter but lifting the ground on such a powerful amp could be a fire hazard.

Sep 25, 2008 | Sunfire True Sub MK II Subwoofer

1 Answer

Loud humming sound from subwoofer


just try leaving it unplugged for a while thats what i did and it fixed it

Sep 21, 2008 | KLH PSW8100-8 Subwoofer

1 Answer

Loud noise from subwoofer on standby or while playing music


Hi There, Please advise us what happens when you turn off the sub woofer is the hum still there....??

From YUBEUT.

Nov 27, 2007 | Teac CD-X8 CD Shelf System

Not finding what you are looking for?
Mordaunt Short 502THX Main / Stereo Speaker Logo

Related Topics:

92 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mordaunt Short Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

4852 Answers

chris

Level 2 Expert

232 Answers

rhodesworks

Level 3 Expert

3049 Answers

Are you a Mordaunt Short Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...