Question about Bose Acoustimass 15 System

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Geiger counter sound from subwoofer

I have an Acoustimass 15 subwoofer (Serial No 02136499162 0473A). My system has been problem free until a few days ago when my subwoofer began a sound similar to a Geiger counter. Do you have any idea what could be causing this problem?

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  • radice511 Dec 27, 2008


    I should add the clicking sound is intermittent almost like an ambient background noise in a movie.

  • radice511 Dec 28, 2008


    BarryMusic,



    Thanks for your response. My system is not wireless. I purchased it about 8 years ago. So, if it is a transistor or chip inside that is developing noise by itself, is this repairable? Or would this type of repair be cost prohibitive and would a replacement be a better option?

  • radice511 Dec 29, 2008


    BarryMusic,

    Thanks again for your assistance. Very informative. I'll give it a go.




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I had the same problem. Intermittent geiger counter noise with no inputs or outputs attached, only power. I took it apart, tapping components, trying to isolate, no luck. Paid $140 and sent back to Bose for repair, no luck. Took it back to Bose store and made them keep it for 3 days, they said no problems. Took it back home, plugged it back in and there is was AGAIN. Told my wife it had to be the power. She suggested to unplug the pressure activated heat blanket plugged in for the dogs (same circuit)when it does it again. It worked. I could kick myself in the bASS. Hope this helps someone else.

Posted on Feb 13, 2010

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If it's a wireless system, the circuits are drifting off frequency or could be picking up interference from just about anything. If not wireless, you probably have a part (transistor or chip) inside that is developing noise by itself.

Posted on Dec 27, 2008

  • BarryMusic Dec 28, 2008

    The next step is to disconnect the input from the speaker system, just to make sure it's not the input cable picking up interference, or making its own noise from marginal connections or an intermittent internal short. If the noise continues, then it definitely sounds like a noisy circuit component. I'm not familiar with the inside of this unit, but it's probably the newer surface-mount stuff or even a specialized processor. Cost-effective serviceability depends on whether it uses commonly available parts, or if the parts are specifically manufactured for this particular unit. Unfortunately, you'd have to have a tech look inside of the unit to make this determination. One thing you might try though is to open the unit and tap around with the handle of a screwdriver - you might fix an intermittent connection this way, or at least reveal the defective part. Many marginally-operating parts will also be sensitive to physical shock or vibration. ALWAYS KEEP ONE HAND IN YOUR POCKET WHEN WORKING INSIDE LIVE EQUIPMENT, though I doubt that there will be dangerous exposed voltages in this unit. Just stay away from the larger parts, which will be part of the power supply circuit.

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