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I OWN BOSE ACOUSTIMASS 7 SPEAKERS.I WANT TO FIX IT IN MY LIVING ROOM.PLEASE ASSIST

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: bose acoustimass 9

Did bose make a Acoustimass 9 series

Posted on Nov 06, 2008

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  • 1 Answer

SOURCE: bose acoustimass 25 subwoofer has no power

Honestly speaking you should probably not work on this unit yourself: "There are no user serviceable parts inside"

Even if you are an accomplished Electrical Engineer Bose will not provide the required schematics to troubleshoot and repair this unit.

Are you still undaunted . . . then if the case is the original LS-25 series, there is a hidden catch at the end of the cover furthest from the input connectors that needs to be rotated (until a plastic tab is sticking out), which you can do with a flat bladed screw driver, and you also need to remove a few screws from the bay where all of the connectors reside. Remove the two knobs from the side of the cover. Then hit the case with your fist at the far end (plastic tab) and the cover should then pop off. You may have to hit it hard, with an upward motion.

Note there is not going to be much you can do to fix this beyond replacing the fuse. (Note that the fuse may be soldered in.) The bass amplifier is op-amp based with discrete class G output stage and the twiddler amps are monolithics with discrete class G circuitry shared between several channels.

The power transformer has a thermal fuse in it as well which is not replaceable. If you play the unit loudly for long periods of time and it is not adequately ventilated it is possible for the thermal fuse to open - if this is the case you will definitely need to send it in for service.

When plugged in there are hazardous voltages present on the top PC board where the power connector is located, whether or not the unit is turned on.

Power switching is via a triac controlled by whichever front end you have CD-5? 12V should be present on the mini plug (tip I think, but might be ring) when the music center is on.

There is also offset detection circuitry that will latch the unit off should any output have more than a volt or so of offset.


For more information see following web site:

http://www.diyaudio.com/forums/showthread/t-106135.html

Posted on Mar 01, 2009

realmacoi
  • 18 Answers

SOURCE: Increase output of Lifestyle 18

apologies mate but what you hear at maximum volume (set volume to 99) is what the system can generate... The Lifestyle system are designed as stand-alone out-of-the box system and like other systems will only perform to their defined level. The only way is by using the AUX out (located behind the DVD/media center and connect either a pwoered loudspeaker or another amplifier (note that the output is fixed line so choose an amplifier with volume setting knob). with multiple loudspeaker of your choice. You may also go and buy expansions speakers from Bose itself

Again, glad to be of service...

Posted on Apr 08, 2009

  • 8 Answers

SOURCE: Want to connect non-bose speakers to a bose lifestyle system

this is possible, however not a very good idea.
Bose speakers are designed a little different than other brand speakers, the Equalizer built into the bose system will probably not sound amazing when you hook up your other speakers. Are you looking for more bass? cleaner highs?

if you want more bass, you could try doubling up your subs, if you want cleaner highs you could buy Bose Jewel Cube Speakers (purchased from a Bose Built-Invisible Dealer

Posted on Sep 12, 2009

Ojelola
  • 22 Answers

SOURCE: no sound from centre speaker

Check your audio settings, via the on-screen menu. The center channel may be turned down. When set at -5 to -8, the center channel speaker may be practically inaudible. If raising the volume of the center channel does not solve the problem, then you do have a dead center channel. The system would then be in need of repair.

Posted on Jan 26, 2010

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1 Answer

How to connect Mackie Mixer 1402vlz4 to Bose Accoustimass 5 speaker


you need a power amplifier between the mixer and the speakers to actually drive the speakers. You would have to choose which amp to use (the manual, found here: http://www.bose.ca/controller?url=/shop_online/speakers/stereo_speakers/acoustimass_5/index.jsp#manuals suggests between 10-200 WRMS for power), and thus would have to determine the cabling options depending on the amp you choose, but...go from either the MAIN or CONTROL ROOM outputs of the Mackie mixer into the inputs of the power amp. Then go from the outputs of the power amp to the inputs on the Acoustimass bass module, which also runs the Acoustimass satellite speakers.

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If you have the money to plunk down for a Bose Acoustimass home theater speaker system, I'm sure you will be quite pleased. Of course, as you indicated, appropriate placement of the speakers is important. Still, I'm sure you will find that a properly placed Bose Acoustimass speaker system will fill your room with high quality sound, substantially better than Onkyo's stock speakers placed equally well.

I own a Technics home theater system, which I initially purchased to use in my family room. Yet, when I listened to a Bose Lifestyle system (powered by Bose Acoustimass speakers), I could have nothing less. The Bose system went in the family room, where everyone could enjoy it. I put the Technics system in the bedroom, where it is rarely used.

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Bose speaker connection


The Bose systems are SYSTEMS for a very good reason. They're made for people who want good sound but don't want to manipulate the hardware much. The speakers and amps are designed for each other ONLY, not only electrically but through soundshaping to provide the smooth final result. The design is for you to feed the electronics a Line Level source and the magic and distribution happens internally. These are NOT mix 'n' match components. The special connectors are a clue. The Yamaha will probably blow them up if you manage to succeed with your plan.

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Changing the inpout voltage of inside bose Acoustimass module


Probably not, but you can install a step-down transformer if there's room inside the unit. Since these speakers don't use much current, a small transformer will work. It doesn't have to be a 220-to-110 transformer either - any transformer designed to cut the voltage in half is fine. A 24 volt-to-12 volt transformer will also work.

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