Question about Audio Players & Recorders

2 Answers

Sony Active Subwoofer noise

Subwoofer suddenly makes loud buzzing sound when system is off, and air blows through hole in bottom of sub. Noise goes away when turned off. It comes back later for ** reason. Sub works fine when whole system is in use. I tried unplugging power supply form sub and receiver in hopes of resetting sub, ** luck. Is it the sub or something else.

Posted by on

  • Anonymous Dec 14, 2008

    I have that same sub with the same problem, but have found the solution. Seehttp://www.sunfire.com/sub_faq.html#set_... and look at "why does my system have a loud hum." The splitter may help some, but only because it is splitting the signal that is causing the problem, that signal will still be amplified, but just not as strong. Try THIS: turn the crossover all the way down to 40hz and slowly turn the volume up from zero. Leave the volume just below the point where it starts to hum/buzz. You can turn the crossover up a bit too. I have mine set at about 80hz and the volume a little less than half way up. It sounds good this way, any louder and the sub is too loud when the speakers are low. With these settings I don't get the hum when turning the receiver off. If you don't like the sound this way you will have to fix your ground/signal problems as stated in the link.

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Need a schematic for a sony sawmsp1 active subwoofer....anyone????

Posted on Jul 17, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 4,234 Answers

The circuit that should be turning the sub on and off based upon the presence of an audio signal is not working correctly and the sub is trying to reproduce 60 cycle hum. The unit needs service.
Dan

Posted on Mar 20, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

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

Why is the subwoofer making a buzzing sound? Is there a solution?


I have had the same problem with my Sony sub. It sounds like it is picking up electrical noise and would not go into standby when the reciever was off. I rerouted my wires and changed to a much higher quality wire. I was using a very low quality stranded copper with thin insulation to start with.

Jun 14, 2010 | Sony SA-WM20 Subwoofer

1 Answer

KLH subwoofer Model BASSBite V. Has a bad 60Hz buzz


Before you go throwing money at this problem, try to eliminate any external influences like track lighting. I myself am trying to figure out why mine makes a buzz throughout my system when the lights are on. I already replaced the variable light control with no improvement.

Bad cable ground can let airborne electronic noise into the Sub's amp.

Jan 31, 2010 | KLH ASW10-120 Subwoofer

1 Answer

Constant noise from Mirage NanoSat 5.1 System Subwoofer


sounds like an earth fault either with the plug circut or more likely with the power board of the unit.

Jan 06, 2010 | Mirage NANOSAT 5.1 System System

2 Answers

Subwoofer continuous buzz/signal noise


I just bought mine yesterday and have the same problem... did you find a solution (other than throwing it out the window)?

Nov 18, 2009 | Bose Acoustimass 15 System

1 Answer

Loud buzzing from Kef PSW1000 Subwoofer


yes. A good idea. Kill power to the sub, then unplug and remove everything from the sub. go ahead and plug it in again and check for buzzzz.
That is test one. if you have buzz still, its the sub assembly. bad luck, but not impossible. If the buzz is gone its one of the signals to the sub. They can produce a buzzz without any signal coming from your stereo equipment. Replace the feed line, enjoy! BTW...Kef sure does sound clean. good choice.

Nov 09, 2009 | KEF Audio PSW 1000 Subwoofer

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

Subwoofer noise


You didn't say is your sub active or passive.If its active first check signal cables from theater system,power line of the sub, it has to be the same phase as the system.If its passive take a voltmeter disconnect the sub from the system and measure for DC voltage on the SUB output on the system when its OFF.If DC voltage is present your amp is damaged.It can also be that the preamp circuit for the sub doesn't mute the input when unit is on stand by and you hear frequency of your power supply (50-60Hz) on the sub

Mar 09, 2008 | Audio Players & Recorders

1 Answer

HS 500 noise from subwoofer


Well as I see from the owner manual for this device the sub is active one and my opinion is that electric is your problem.The power of the sub and main unit must be on the same phase otherwise you'll hear brrrrr or frequency of your main unit power supply on the sub.Thats why sound changes when you open or close the door.Take one power distribution cord (get power for bought devices from the same place) and connect main unit and the sub on it and then try.I hope that this will help you

Mar 04, 2008 | Audio Players & Recorders

2 Answers

Major buzz/Humming sound coming from my subwoofer


Well there are only a few reasons i can think of that just might be the reason behind said buzzing.

1. It may be connected to another power source ( amplified or powered supply ) or incorrectly connected. It may also be too close to said power supply.Try letting the dog (sub) out on his leash a little Drag out the manual that came with the sub, and check the correct procedure for your type of setup.
**People do read manuals still don't they ?**

2.The only other problem i have heard of is port noise in low registers. Keep the the port area clean, as it may suck up dirt, or even worse, small children!

3. However, if you're considering placing this subwoofer in a cabinet, I'd recommend allowing ample breathing room for the heat sink. This can also be done by drilling smaller holes in the cabinet ( 8-12 mm holes - with the owners permission of course) but please do remember to keep the port area clean.

4. The product ie: Velodyne DPS-12 Subwoofer, came with a bad power supply, presuming it is new, check your warranty.
(not very likely - see also scenarios 1, 2 or 3.)

Velodyne has been making subs forever and do it well.


Jan 17, 2008 | Velodyne DPS-12 Subwoofer

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

846 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts

kakima

Level 3 Expert

98608 Answers

 Grubhead
Grubhead

Level 3 Expert

4678 Answers

The Knight
The Knight

Level 3 Expert

69570 Answers

Are you an Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...