Question about Boston Acoustics XB6 Speaker

1 Answer

Emits a loud hum or rumble sound.

My Boston XB6 subwwofer emits a loud rumble sound regardless if it is connected to the receiver.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

This problem is usually because of grounding.

If you look at the power lead, you will notice it is the regular "kettle plug" shape, but it only has two pins (live and neutral). There is no earth connector.

You have to ground the sub to your receiver. This is done by running a RCA connector connected to one of the unused connections to the amp.

However, this doesnt ALWAYS solve your problem. As in my case. I have a Pioneer 7.1 receiver, which is ALSO not grounded. so running a spare RCA cable has no effect. What I have done is wired a RCA connecter to a copper cable and connected the other end to the Earth pin on a 3 prong plug. This is plugged in to a wall socket, thus grounding the sub.

It's not a solution the manufacturer will suggest, but it seems to work for me.

Posted on Jan 06, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Pv700 sub woofer has loud hum


If the speakers are turned off and the sound is still there , check the Amps , as it could be voltage transformer noise from the amp . This is caused by non sealing of the transformer .So I am told

Dec 17, 2013 | Boston Acoustics Speakers & Subwoofers

1 Answer

I have a JM Labs Cobalt SW800 subwoofer connected to a Yamaha RX-V2300. Recently during intense moments, esp action movies, the SW occasionally emits a loud pop; most of the time only one, but sometimes...


What you may be hearing is the speaker's guts bottoming out as it attempts to keep up with the amplifier, which may be clipping - a potential fatal thing to do to any speaker.

Maybe you should turn the volume down or run through the volume setup again and make the subwoofer equal in loudness to the other speakers and avoid excessive bass boost.

Feb 22, 2010 | Jmlab Cobalt SW 800 Speaker

1 Answer

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

Alesis m1 mk2 active emits low pitch hum and does not work


You need to take a closer look really, see if anything on the power supply board inside has melted, burned, popped, etc.

Mar 13, 2009 | Alesis M1-Active MkII Main / Stereo...

2 Answers

Acoustimass Subwoofer has a low "hummm" sound when turned on.


Sounds like an inadequate ground wire in the signal cable. You may have to replace the cable between the reciever and bass module. It also, however, may be IN the bass or reciever module.

Aug 04, 2008 | Bose Acoustimass 15 System

1 Answer

JBL d110 /w no sound output


There is a standby indication that activates after 10-15 minutes without any input signal. I suspect that might be what the red light is telling you - no signal.

Loud hum from a loosened cable is normal as hum usually means there's an ungrounded connection somewhere acting as an antenna and the amp is doing its job to amplify what it thinks is a signal, in this case 60hz stray ac current is being sensed nearby. It's a good sign that you get hum from the sub because that means the amp is alive.

Avoid manipulating cable connections with the Sub or Receiver turned on as you could introduce a static spike that could harm any connected equipment.

Are you certain a bass signal is making it into the sub? The complexities of modern AV receivers vary in how you configure them to direct LFE to a sub. Bone up on that end of the chain.

Or, just hang a CD player on the Inputs of the sub and play something with a reassonable amount of Low Frequencies.

>>>> Be advised that this way of testing has NO VOLUME CONTROL because amps without volume controls always operate at maximum gain, relying on your external controls to attentuate it (hence, the loud hum from a loose cable); so choose a track that eases into the loud parts with some quiet parts up front and BE READY TO PAUSE THE PROGRAM AT ANY SIGNS OF STRESS. <<<<

A living sub will produce only muffled rumble in the absence of other speakers producing the higher frequencies which carry the intelligence of the signal. If that works, back to the receiver for settings. If not... sigh.

-----

For hum problems, even those you cause yourself:

Disconnect all inputs to see if that helps. If it goes away start with the signal cables and add in things until it comes back.

Sometimes the reversing the orientation of the AC plug can help with hum. Or it could be something like a loose or high resistance connection internal to the sub. Good luck.

Jun 17, 2008 | JBL PSW-D110 Speaker

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

Not finding what you are looking for?
Boston Acoustics XB6 Speaker Logo

348 people viewed this question

Ask a Question

Usually answered in minutes!

Top Boston Acoustics Speakers & Subwoofers Experts

 Grubhead
Grubhead

Level 3 Expert

4593 Answers

The Knight
The Knight

Level 3 Expert

68386 Answers

Steve

Level 3 Expert

3287 Answers

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

Answer questions

Manuals & User Guides

Loading...