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A speaker doesn't work! SB Audigy2.

October 18, 2005 at 04:06:11
Specs: Windows XP, AMD 1800, 516 DDR

Hi all!

I've had a small problem for a while now, and it's confusing me big-time. Any help would be so gratefully received.

Basically I have a Sound Blaster Audigy 2 card, quite recent (which has a Digital Out Jack, Line In Jack, Microphone Jack and Line Out 1, 2 & 3 Jacks, and firewire port). I also have a speaker set from Cambridge SoundWorks - one subwoofer which connects to four tiny speakers. This subwoofer connects to two of the "Line Out" jacks. I have set the computer to recognise 4.1 speakers - which it SORT OF does, as you'll see ...

All four speakers have worked fine in the past, but when I run a speaker test recently (each speaker talks to you in turn), one speaker (front right) doesn't work! It's not the speaker or the wires, as they've been tested on other connections, but seems to be the "front right" connection on the subwoofer.

BUT THIS IS WHERE IT GETS WEIRD, and I'm hoping someone can help: The "front right" connection doesn't work with any speaker, as I stated, but when I disconnect the "front left" speaker from the subwoofer, the "FRONT RIGHT" speaker suddenly works with very QUIET, MUFFLED audio - and says it's the "front left" speaker!

I really hope somebody out there made sense of that. Any advice on what is going on here would be greatly appreciated! Do I need to change the connections to the sound card itself? Is it possible that the four speakers need to be connected in a specific order, or are they all just the same speakers and wires?

I really don't understand why the "front right" speaker doesn't work when the "front left" is connected, but when I disconnect the "front left" speaker, the "front right" speaker suddenly has very quiet, muffled audio and says, "Front, left!" Remember, I *have* set the computer to a 4.1 system, so that isn't the problem.

Anyhow, I've gotta go to work! Any help would be eternally appreciated - I know this is a very confusing problem!

All the best, and take care, Mark.


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#1
October 18, 2005 at 05:49:55

When troubleshooting speakers it’s not a good idea to have the system set to 4.1, 5.1, echo, reverb, or any other “special effect” In this mode, some of the left is fed to the right, and right to left, and front to back…and so on. Test the system when set to plain ordinary stereo. (You can do this because the rear speakers are not the problem.) What you want is a definite and separate left signal and right signal… you get this in the stereo mode.

The 4 speakers connect to the subwoofer because that is where the amplifier and channel decoder is. The 2 line outs coming from the computer are your low level left and right (which is decoded within the subwoofer box). Switch the lines outs around. If you get a clear and loud “left speaker” coming from the right then the problem is within the sound card, one of the line out plugs, or the line out cord itself. But if you still get nothing from the right then I would suspect a problem in the right amplifier. If you are the type that cranks the volume then it’s most likely the output transistor.


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#2
October 18, 2005 at 14:08:40

Good answer blackbill...

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#3
October 23, 2005 at 15:53:01

Blackbill, you are my hero! It turned out to be one of the two line-out cables, and I tested this by switching the two. So simple. Thanks so much! All the best.

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