Boston Acoustics Duo-i Horizon Clock Radio Logo

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Joe Don Posted on Apr 04, 2017
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Speaker produces noice/static/buzzing sound when it is off

Here is the problem: 1. I plug in the power cord, no static. I turn on radio, no static. I turn off the radio, after 5 seconds, it produces static sound. 2. I unplug the power cord and plug in again, no static. 3. I plug in my headphone, I turn on the radio, and turn it off, no static. 4. I plug in my headphone when it is static, turn on the radio and turn it off, it continue to produces static. 5. I move the unit away from my room, where there is no cell phone or wifi, still produces static when I turn on and turn off the radio. Final thought, as long as the speaker produces any kind of sound, when I turn it off, it produces static sound. Please help.

  • pythianleger
    pythianleger Mar 09, 2013

    I have 2 of these unit and after about 4 years they both developed this exact same problem. I am having 1 unit serviced, so I will update later with more info. I can say that if you firmly tap the top of the unit on the back left quadrant, the static stops.

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1 Answer

kiranbodapothula

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  • Expert 46 Answers
  • Posted on Nov 09, 2017
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That means that if too much power is going to the speaker or extraneous signals are being picked up by the wiring, it can come through the speakers as static. Stopping static requires finding and eliminating that extra electricity from transmitting through your speakers.
If you're still hearing distortion, turn down the volume on your amplifier until the distortion goes away. If the volume is too low to be easily heard, the problem may be that your amplifier produces too much power for your speakers to handle or that your amp and speakers have different impedance ratings.

4 Related Answers

Open SKy

Carlos L. Burgos

  • 620 Answers
  • Posted on Feb 08, 2008

SOURCE: My Speakers went out and now all I hear is a buzz.

hello there,

First things First:

1) Check cables for dust, or bad connectivity. Clean aprop.
2) Clean carefully the volume control inside, with spray for computer use.(carefully inside the conectors)
3) Finally and sadly, have to change the speakers, may be is something damage inside the board of speakers, or fried. :o(
good Luck

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Anonymous

  • 291 Answers
  • Posted on May 18, 2008

SOURCE: Annoying humming sound coming from subwoofer...

The humming sound usually comes from the DC supply that is not filtered. The a/c converted or changed to DC needs to be "cleaned", before going into the ckt. Usually the capacitor and resistor network go bad, maybe causing the fuse to open. Even if you replace it, u may still have the "humming" because the circuit is still bad.
If you know how to look at the capacitor, resistor,or coils AFTER the diodes & replace the damaged part, u should be good!

Anonymous

  • 14 Answers
  • Posted on Jun 09, 2009

SOURCE: BOSTON ACOUSTICS BA735 volume is LOWER than MAXIMUM LEVEL

OK, a few things here. First of all, what program are you using to listen to music? Some programs have an automatic volume leveling setting. If you're using Windows Media Player, it has one. Next, you should NEVER set any speaker/volume/amplifier knob to Maximum setting if you want to get any life out of your speakers. Speaker ratings are for consistent volume levels at a "clean" power level. When you turn any music source up past 80% you are pushing more distortion through the speakers that they cannot reproduce without self destructing. The human ear cannot hear this, and the volume gain is minimal. Next we'll talk about that your dealing with a combination of power levels compiling into an amplifier that may be taking in more than it can aptly amplify according to it's power multiplier scheme to increase the volume at the speaker level. If you've got everything maxed out, you're probably just pushing it all WAY too hard. All over exerted energy that is not being used productively will end up in generating heat and distortion. Those are your 2 biggest enemies when it comes to anything audio. Distortion tears voice coils and generates disruptive electrical currents, and heat destroys circuitry and components in amplifiers. The times where they jump up in volume, just look at that as borrowed time until they blow. If you want louder, get a better or more powerfully rated set, and still, NEVER turn it up past 80% if you want it to last.

Anonymous

  • 104 Answers
  • Posted on May 03, 2011

SOURCE: we found a pair of

I have a similar set of speakers at home from the same company. For the pair i have, they are attached to an amplifier which provides the power to these speakers. without the amplifier, these speakers will not work. Now you can take the speakers to radioshack or a similar company and see if there is an specific type of amplifier that you can buy to work with these speakers, but im not sure if the speakers work at all!
hope this helps! Thumbs up if it did :)

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Static popping and buzzing sounds come from the speakers when the car is running. The Radio is not turned on and it will continue for a long time, quit then start again as you are driving.

Is it a factory amplified system? Could be the volume knob. Might try unplugging the radio for test purposes and see if it still pops and buzzes to get a better idea of where to go next
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How do you get the RX icon to turn off? The unit just has a contant fuzzy buzz.

RX represents "receive" This indication will be present whenever the speaker is producing audio. The "buzz" you're talking about is probably static, and is technically audio from the speaker. To silence the "buzz" adjust the squelch just until the speaker falls silent. The RX indication should be off at this point.

It is important to note that the squelch is designed to keep the speaker silent until a signal is detected. You adjust the squelch based on the level of static at a particular time and at a particular location. The static level may change depending on those variables. If you adjust the squelch well beyond the point that the speaker is silenced, you may not be able to hear transmissions or calls to you unless the caller's transmitter is physically close to you. This is why the squelch should be adjusted only until the static is stopped and the speaker is silenced.

I hope this helps and good luck!
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I had the same problem, check the pine connexion it's probably the problem, mine was cut in half and do short-cut that produce that noice.
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Sounds like the cords that are going into the PC/system have static. Remove the cords from the speakers and simply put your finger around the jacks to remove static. Push the cords and the jacks back in and switch on the speakers. Then twist the volume control, turning it up loud and then low, then loud and low again. That should cure the problem as it removes static that gets built up over time. Either that or your speakers could well be damaged.
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The first thing to try is plugging a set of headphones into the speaker plug and testing, see if the crackling continues, if it doesn't it sounds like a short in your speakers (or the sound card, but my guess would be the speakers).

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I've had the same problem and I think I've solved the problem. I noticed that they were fine when I first turned them on. After a awhile the blue light would flicker and static would start. I figured there might be some connection so I unplugged my speakers, took off the thin rubber from bottom and removed the 3 small screws. I carefully pulled the circuit board down, spotted the led light and snipped it off. I put everything back together, double stick taped the rubber piece back on, plugged it back in and have been listening static free for hours. Yippee, no more room full of screaming babies (that's what static sounds like to me)! By the way, I'm no expert. I just have a very strong aversion to static.
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Technics sax-710 receiver Nht sb-1 speaker developed a buzzing sound when playing, Kids may have over drove speakers(not sure) Replaced with nht supezeros now both speakers sound very staticy like off...

The speakers have buzzing sound because of damaged cones.
Over driving speakers, especially with heavy low frequencies, can tear the voice coil away from the cone.
Once damaged, only replacement will help
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