Question about Bose Companion 3 Computer Speakers

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Main Bass speaker not working!!

Hi there, last night I turned on my Bose companion 3 speakers, the 2 small speakers worked fine but the main bass speaker was playing very very quietly and every 15 seconds or so making a loud "woompf" sound and I could feel a strong blast of air from the speaker out the back of the unit!!!! Any ideas???

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Hello Adam Hi, it looks like your main IC amplifier inside the main bass box is bad, need to replace that IC. What are your plans, do you want to do the repair or have it service by a tech guy.

Posted on May 06, 2010

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Posted on Jan 02, 2017

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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


Instructions


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..

products.bose.com/pdf/customer_service/owners/og_am5iii.pdf


Have a nice day..

Feb 19, 2011 | Bose Acoustimass 5 III System

1 Answer

How to open the bass speaker box on a Bose Companion 3 system?


Using a knige or razor blade, lift the edge of the rear sticker up. Do this evenly and you will fnd all the screws that hold it together. Take your time and you can put the sticker back down.

Nov 29, 2010 | Bose Companion 3 Computer Speakers

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My Bose Companion 3 coputer speakers are 2 years


i hav the same problem but all three shut off ,and i have to shut off and turn on again

Jul 29, 2010 | Bose Companion 3 Computer Speakers

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My Companion 2 speakers were having the same problem with the rattling on certain frequencies and I am happy to say that Steve Allison was correct in my case. The speakers don't handle surround settings very well so if you're running your speakers through a source that had that setting turned on the easiest way to stop the rattling is to just turn the surround setting off. The speakers weren't really made to handle that kind of a signal.

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1 Answer

Loud hum when Bose Companion 3 Series II speakers are turned on.


I had the same problem for many months. I asked a sound & video professional and he suggested I move the subwoofer away from any power source. I had the subwoofer next to my UPS. Once separated and moved all wiring away from the power supply (about 12") the low bass hum was practically gone.

Jun 28, 2009 | Bose Companion 3 Series II Multimedia...

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Front bose speakers and bass module stopped puttimg put sound


If you're saying you hooked the Bose speakers directly to the Yamaha's amp instead of the prescribed way through their own bass module - they're cooked.

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Bose Companion 5 Producing Unstable Sound


The intensive bass is making the speaker shake very much and that could have caused a short that changes the volume after a while when the speaker has been shaking for a period of time. You could try lowering the bass or volume to see if it makes a change in how long it takes to make the volume change.

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