Question about Bose Acoustimass 5 III System

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Bose Acoustimass power

Hi there

I have a early model Bose system consisting of left and right cube speakers and an Acoustimass Sub module providing power to both the sub and the speakers.

When I turn the stereo on it works fine, but after 20 seconds all sound cuts out, the control unit is still going and I can hear through the headphones but not through the speakers. I turn the sub off and turn it back on and it lasts for about 10 seconds, retry then 5 seconds. Until it doesn’t work at all.
I live in New Zealand and we have one bose supplier in out main city, which is a $300 trip or $150 courier without even getting it looked at.

Any help would be greatly appreciated, thank you in advance.

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Re: Bose Acoustimass power

I also have the same problem.... i open the sub and can feel that one of the copper spools are very warm... I think it`s maybe a fuse or something that is shuts the sound of....

Sorry for my bad english... working on that too...

Posted on Mar 26, 2014

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Re: Bose Acoustimass power

I have the same problem TOO!#$#@% Anyone out there?

Posted on Apr 10, 2010

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How to put together a double cube bose speaker

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Unable to receive optimum output. The bass is totally flat !

Hi, ok the Bose Acoustimass III system consists of two small cube speakers and one subwoofer unit called the Acoustimass bass module. If the subwoofer stops working, three points can be the cause of the failure. The Bose Acoustimass III is a passive system, meaning the speakers do not power themselves, but instead are connected to a receiver or amplifier. Thus, the amplifier, the speaker between the amplifier and the subwoofer, or the subwoofer itself could be the issue.

Things You'll Need:

* Amplifier
* Speaker cable
* Extra subwoofer


Disconnect the speaker cable from the back of the Bose Accoustimass bass module and connect it to a subwoofer that is known to be working. If the subwoofer works, the bass module needs to be replaced.

Disconnect the speaker cable from the back of the receiver or amplifier you are using and from the back of the subwoofer in Step 1.

Connect a speaker cable that is known to be working between the back of the receiver or amplifier and the back of the Accoustimass module. If the module starts working, then the cable was the issue.

Disconnect the speaker cable from Step 3 from the back of the amplifier or receiver, then connect the cable to the subwoofer port on the back of an amplifier or receiver that is known to be working. If the subwoofer works, the receiver was the issue. If the subwoofer still does not work, verify that the speaker cable is in the subwoofer port of the receiver/amplifier and that the cable is connected securely to the subwoofer.

If you think you did the connection properly,Fine... If not you can use the manual from the below link and know how to connect it properly..

Have a nice day..

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Please let me know.

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