Question about Bose Acoustimass 15 System

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Bose acoustimass 15 series 1 channel loss

Hi, I lost the right front and right surround channels on my subject device. I checked my receiver by plugging in other speakers to each channel, checks ok. I checked the speakers by confirming they work on other channels and did the same with the wires, all ok. I popped open the acoustimass module and checked the D connector, and looked on the boards for a fried or loose component, nada. I pulled all of the connectors and reseated them, still no luck. What else is left?

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Sounds like you may have a blown output transistor or chip, which generally show no external signs of damage. This would take an experienced technician to find and fix, and I commend you for knowing to check the speakers, receiver and cables through substitution! If you're handy with a soldering iron and can find the parts, try replacing the output transistors or chips in question. These are what usually fail in audio power amplifiers - also check any power resistors for opens - some of them are designed to act as fuses to protect the more expensive components.

Posted on Dec 29, 2008

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I have a Bose Acoustimass 6 Series III the receiver is Yamaha 3066, this system is a 5.1 surround sound. Then I bought a pair of Bose 901 Series VI Direct/Reflective speaker system with active equaliz


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Clarify, did it ever work for you? Were both receivers used properly configured for the subwoofer? Did you also test the other speaker moduels running off the subwooferto see if they work?

Speaker Receiver setting
• Left and right LARGE
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I lost sound on one side of bose stereo system., Seems its the power ouput on the right side speaker, i changed speakers and the right one works when plugged into the left output. How do I open the bose...


first lets check
no need to open any thing

1) just trace the wire of working channel and plug out that and connect to opposite side of that channel


for example: if front left is not working, remove pin of front right and plug it into front left

after that listen the sound if front left is working then no need to open amplifier just check the wires of satellite speaker which is not working

how to check broken wire:

1) just observe your speaker nearly if you found any screw holes open it, if u can not find any screw holes remove front net which is fitted by press lock or any stepped groove, you can remove that and if you are removing front net you have to open speaker from casing then after you can find speaker's wire shouldered or bolted to it just check wire and go on after that u'll be sure that weather your speaker is failed or wire!!!

enjoy!!!!!!!!!!!!!!!

(don't forget to rate)

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Has it ever worked?

Try this - connect one pair of its speaker wires at a time and test it. Watch the polarity.

• Make sure all cube speaker arrays are connected to the proper terminals according to their
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• Check to be sure all wires are connected to your surround receiver with the proper polarity
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NOOOOOOOOOOOOO!!! If you have the room for them to run free and loud, keep the 901's in service. Get them a good amplifier because any multichannel receiver can't deal with their special EQ needs and still drive conventional speakers for the other channels properly.

The good news. I have a setup similar to what I think you're trying to do and it works great! Get a receiver that has has 5.1 analog Outputs so you could drive up to 6 external amplifiers if you want to (I drive 4). Then you can draw off the Front L&R to a separate amp for the 901's and the 'other' (lesser) speakers can live on the receiver's native amplifiers.

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