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Microsoft Digital Sound System 80 - Parts

My subwoofer for a Microsoft Digital Sound 80 speaker system blew, would like to replace the component.

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  • Anonymous May 16, 2009

    I have a ripped woofer. Would like to replace it.

    Recommended replacement?


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Same here!

Silicon seal fixed for a while ... ripped again 3 months later.


Posted on Aug 30, 2008

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I have a Microsoft System 80 subwoofer unit with a bad (rattling) subwoofer. Since I have not been able (as of yet) to locate a dual voice coil replacement, I'm going to try to replace both the speaker and the passive radiator with two single voice coil subwoofer speakers. Anyone with bad speakers watch for my results in the coming months! This may be a good fix for all those blown units. Next time I won't listen to Deadmau5 too loud or heavy on the bass, either!

Posted on Jul 23, 2012

  • kevin Nov 22, 2012

    did you manage to fix your problem? i'm noticing the same thing, too.

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1 Answer

No sound from the speakers


check your connections if they are good another problem I could see possibly happening was if the wires for the speakers were plugged into the amp while it was turned on the wires may have touched together and blew the side out of your amplifier.

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Our denon 1708 only play on stereo mode,no sound when it select on 7 channel.. crackling on dolby. what is the problem on that receiver? please help


The surround sound outputs outputs ic's in the remainder of the system have opened, or there is a short in the speaker wiring, check to make sure that is not the case, if okay! you will need a repairman to assess the situation.

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Htddw7600, brand new, sub amp is not working, only way to get any bass sound is to unplug the sub cable from back of main amp and touch it on side of sub out port.


H?,
You have a very good system...one of the best of SONY..SUB does not get activated automatically especially on STEREO mode.DIRECT STEREO Notes • No sound will be output from the subwoofer.
.your system has Dedicated Power Amplifier for 2 Externally Driven Sub-Woofers (200W RMS x 2)..in order to activate the sub woofer amplifier you need to make a selection on the surround modes while you are switching the modes of the surround you will see the speaker position on the display of receiver as well..if you do not see the sub woofer it wont be activated..Sound Field Program (A.F.D) is a good example to test it..
Take care and please Remember to rate/vote and give me 4 Thumbs Up
for Helping out the Community :)

Hope this helps!

--------------------
Additionally please follow the instruction on your user manual to activate the SUB ,as is follows..

-----------------
BASS-OUT
Low-frequency (bass) signals can be directed to the
subwoofer and/or the front left and right speakers
according to the characteristics of your system. This
setting also determines the routing of the LFE (low-
frequency effect) signals found in Dolby Digital or DTS
sources.
Choices: SWFR (subwoofer), FRONT, BOTH
• Select SWFR if you connect a subwoofer. LFE and
low-frequency signals from other channels are directed
to the subwoofer according to the speaker settings.
• Select FRONT if you do not use a subwoofer. LFE and
low-frequency signals from other channels are directed
to the front speakers according to the speaker settings
(even if you have previously set the front speakers to
SML).
• Select BOTH if you connect a subwoofer and you want
to output low-frequency signals from front channels to
both the front speakers and subwoofer. LFE and low-
frequency signals from other channels are also directed
to the subwoofer according to the speaker settings. Use
this function to reinforce low-frequency signals using
the subwoofer when playing back sources such as CDs.

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The only thing that will give you a better sound quality is some type of amplifier/speaker set-up, wether you choose to have an amp and two speakers or and amp with five speakers and a subwoofer is up to you.

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As I implied earlier, take a clue from the physical style of connectors for both parts of the subwoofer function in the old and new receivers:

RCA connections are for Line Level signal between components only.

The input (bare wire) at the speaker is for AMPLIFIED signal.

You can't just modify one to fit the other and expect magic to happen. Be glad you didn't do it the other way around and modify an amplified (speaker level) outout into a Line Level input. You likely would have smoked that component.

Your subwoofer is a passive speaker, that is, like any other speaker it needs an amplifier. Many subs are self-powered (amp built-in) and they would mate well with the RCA sub output of the receiver.

Get yourself an Active (self-amplified) Subwoofer and run UN-MODIFIED RCA cables to it, according to its instructions, from the Sub Out of the receiver. Or get an amplifier between your receiver and the sub you have.

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