Boston Acoustics BA790 Computer Speakers Logo

Question about Boston Acoustics BA790 Computer Speakers

3 Answers

Boston BA790 Subwoofer Making Strange Noises

Hello. I have an old set of Boston BA790 speakers. Lately, the subwoofer has been making strange noises. It sounds like faint crackling noise and it comes and goes. When I unplug the blue "Control" plug it stops making the noise, but then I have no sound from my speakers. Is there something I can do to troubleshoot or fix this?

The crackling sound is only coming from the subwoofer occasionally.

Posted by Anonymous on

  • Anonymous Feb 03, 2010

    Thank you for the fast response. I don't have any cats. A good idea to check anyway so I shook the subwoofer vigorously, but nothing is rattling. The speaker system has always been used moderately, volume at no more than 30-50% and Bass dial to no more than 20 or 30%. I'm not a loud music person so it's hard to imagine that the subwoofer is blown from loud sound. I'm the only person who uses it.

    Another way to describe the noise might be to say a low rumbling, almost as if there's static in the connection or something. It's kind of hard to describe. But like I said it comes and goes. It's quiet now, but then later it may start making the noise for 10-30 minutes. It's not a steady noise either.

    Is it possible for a subwoofer like this to just simply wear out over time? Or should these pretty much last forever with proper use?

    I've checked all the plugs and they're all seated securely. Could it be something in the wires? My sound card drivers are up to date as well.

    What if I opened up the subwoofer...is there something I could look for there?

×

Ad

3 Answers

Anonymous

  • Level 1:

    An expert who has achieved level 1.

    New Friend:

    An expert that has 1 follower.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

I just took my sub apart and found that the surround on the driver speaker inside the sub was totally crumbled and lying in pieces throughout the sub box.

I'm looking around now for specs on the sub speaker so I can find a replacement.

Posted on Feb 15, 2010

  • Anonymous Aug 27, 2011

    Had the same thing.
    Installed a Dayton 5-1/4" 8-ohm Woofer.
    Sounds great.

×

Ad

Anonymous

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    New Friend:

    An expert that has 1 follower.

  • Expert
  • 63 Answers

If you have any cats, make sure that they may not have put something inside of the port hole. see if anything rattles around when you shake the speaker, nothing should. you may have blown your speaker, especially if you have ran it at high level for several years. turn down the amount of bass that is going into it. it does sound like you have a bad speaker

Posted on Feb 03, 2010

Testimonial: "Thank you for the fast response. The clarification comments helped tremendously. I'll try the suggestion about cleaning the contacts."

  • Anonymous Feb 03, 2010

    no, using it as you are, it should last forever.... but, with what you are now saying, i would look to see if something else in your house is turning on and causing this. traced one down that was a bad ballast in a light fixture in the apt next door. my own system one time did very similar to what you are saying, cleaned the contacts on the plug that plugs into the speaker with q-tip and rubbing alcohol. couple of years now and no repeats.

×

Ad

Anonymous

  • Level 1:

    An expert who has achieved level 1.

    New Friend:

    An expert that has 1 follower.

  • Contributor
  • 2 Answers

Thanks guy it help lot I did take the woofer out now I need to buy the new one and place it. In my case I want to fit it because I use my iPhone or touch pad to play music or watch videos or even movies, sound great I do have a system all ready in back side of my house for when I do BBQ or workout and placing the one I bought at Craigslist in my garage for my mechanical skills, lol... Thanks again.

Posted on Dec 13, 2011

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Boston acoustics subwoofer won't turn on

Hello
Did you find the value of ZD3.
I need it too.
I have the same problem, and I take out the ZD3 and the subwoofer works. But I'm not sure that is correct. I think it may be the circuit stand by.
3helpful
2answers

Zd 3 diode value on boston acoustic soundware xs 5.1 subwoofer

Replaced the ZD3 on the Boston Acoustics Soundware xs 5.1 subwoofer with a 18 Volt-1 Watt Zener part number 1n4746a. and works like brand new.
0helpful
1answer

I get a red light on the back panel labeled power. No green light. I don't think the PV 600 is working but when I run the channel check through my Pioneer THX receiver I hear sound. Any thoughts?

The PV600 and PV400 have auto-on circuitry that turns the subwoofer on when a signal is presented, and turns off if no signal is detected for 15 minutes.

http://www.retrevo.com/support/Boston-Acoustics-PV600-Subwoofers-manual/id/522dj484/t/2/

Not knowing which Pioneer receiver you have I have dropped in the steps for No Sound from Subwoofer:

• Check that the subwoofer is connected properly, switched on and the volume turned up.

• If your subwoofer has a sleep function, make sure it is switched off.

• Make sure that the Subwoofer setting is YES or PLUS (see Speaker Setting on page xx).

• The crossover frequency may be set too low; try setting it higher to match the characteristics of your other speakers (see Speaker Setting on page xx)

• If there is very little low frequency information in the source material, change your speaker settings to Front: SMALL / Subwoofer: YES , or Front: LARGE / Subwoofer: PLUS (see Speaker Setting on page xx).

• Check that the LFE channel is not set to -80dB , or a very quiet setting (see Bass Peak Level

on page xx).

• Check the speaker level settings (see Channel Level on page xx).

Regarding the Large vs Small assignment of speakers, what they mean isn't so much the physical size but the ability to handle real bass. Large if Yes.

0helpful
1answer

How do i connect my boston acoustics pv800 subwoofer to my Harmon Kardon AVR 520 reciever?

You need to use the LINE LEVEL connection on the pv800 (usually a rca type connector cable) and run this cable into the back of the HK 520 Subwoofer PRE-OUT connector, be sure the HK Receiver menu speaker set-up option is set to SUBWOOFER "YES"
0helpful
1answer

Looking for connection instructions to PC and subwoofer

ou can download a manual under product detail on this page.

http://www.amazon.com/Boston-Acoustics-BA790-Multimedia-Computer/dp/B00005AR7N

Check power supply is plugged in correctly and switched on at the socket, then turn or push the button usually on the right speaker to turn it on,

good luck HPC
0helpful
1answer

Need help no sound out of speackers

Presume you mean 790 not 970, if so you can download a manual under product detail on this page.

http://www.amazon.com/Boston-Acoustics-BA790-Multimedia-Computer/dp/B00005AR7N

Check power supply is plugged in correctly and switched on at the socket, then turn or push the button usually on the right speaker to turn it on,

good luck HPC
0helpful
1answer

Kicker solo baric s8L7 making strange noises

the voice coils are blown and they would replace the the whole cone and coil assembly, it is almost as much as buying a new sub, email me I am a car audio wholesale dealer and I beat any price ( with full factory authorized warranty !! ).

[email protected]
Not finding what you are looking for?

1,749 views

Ask a Question

Usually answered in minutes!

Top Boston Acoustics Audio Players & Recorders Experts

The Knight
The Knight

Level 3 Expert

76851 Answers

Steve

Level 3 Expert

3290 Answers

Lawrence Oravetz

Level 3 Expert

10558 Answers

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

Answer questions

Manuals & User Guides

Loading...