No sound in all speakers just one

Depends on what output your stereo is. If you underrate the speakers (speaker watts is less than stereo output), the unit will sound louder for a while, then you end up blowing your speakers with the excess distortion. If you overrate the speakers (speaker watts is higher than stereo output) the speaker will not operate correctly and the distortion can damage it also. Its best to get a close match. Slightly higher is better. It is important you know actual wattage output not PMPO ( Peak music power output) A lot of stereos are rated at PMPO. The higher number sounds great but in reality, the figure is the MAX output and by then the sound is distorting badly. Distortion ruins more speakers than anything else...

To get "surround" sound, when you face the computer, you will have:
* 2 front speakers, one immediately on each side of the computer
* 2 side speakers, one on each side of your head
* 2 rear speakers, one behind each side of your head

Thus, when the sound is of a jet-plane coming towards your face,
you'll first hear the sound in the front speakers,
then in the side speakers,
and finally in the rear speakers,
to produce a sound-effect of the jet passing over your head, and going "behind" you.

Usually, for "front" speakers, one speaker connects to the other speaker, and the second speaker connects to the "FRONT-audio-output" connector on your sound-card.

For side speakers, one speaker will connect to the LEFT-side-audio-output port,
and one speaker will connect to the RIGHT-side-audio-output port.

For rear speakers, one speaker will connect to the LEFT-rear-audio-output port,
and one speaker will connect to the RIGHT-rear-audio-output port.

Those speakers were originally supplied with Gateway computer system that had sound cards with digital outputs. While some versions had analog and digital sound inputs, most often the speakers had digital input only. The on-board sound in the eMachines is analog output only, so the speakers are most likely not compatible with your computer. If you want to use those speakers, you will need to locate a PCI sound card with digital output.

It's a matter of the output from the computer's sound card (built-in) being incompatible with the speaker input. The card is sending out analog sound wile the speakers are expecting digital input. Downloading a driver won't help because that doesn't fix the root problem. You need to get speakers designed for analog input, or a sound card with digital output. As it stands now, your computer just can't use those speakers.
Since your using a MacBook there is no option for this Pci Digital Sound Card.

You'll only be able to get true surround sound utilizing all the speakers if you have a sound card with multiple outputs (usually color coded as Green, Black, and Orange). Plug the satellite speakers into the subwoofer and run the three input wires (Green, Black, Orange) to your multi-source output.
If you only have one output on your PC (common), you should just connect the green wire and press the "matrix" button on the system. This will just duplicate the sound output into the other channels but is not "real" surround sound.
Hope that helps.

The Guys at Boston Acoustics helped me get my speakers to work. The Boston BA7500 speakers are coaxial digital speakers so you need a digital output on your sound card. Analog will NOT work. My new HP Pavilion has a Realtek sound card with a digitial RCA plug output. I had to go to Amazon and get a male RCA to 1/8" Stereo Mini Female adapter plug. I just pluged it in and configured my sound card to 16 bit 48 khz output to the RCA output and everything works great. The speakers sound better then ever, great for 10 year old speakers! They sound better then anything I have seen avalable today. The guys at Boston were the only guys that helped with getting this to work! Thanks again to them and Amazon has every type of adapter plug you may need. Good luck.

Rick

the only time the center and surround speakers put out sound is when it has a surround sound source such as a dvd etc. and only certain sounds come from them as well.

I have lenovo notepad 3000n100 with winXP sp2.
I downloaded realtek audio from ibm site and installed.
Now sound is coming at my output port but the in-built laptop speaker is not giving any sound output.
The hardware is ok as the sound was coming at in-built speaker before formatting. The previous audio driver set up file i have lost.
Plz help.

Those speakers were originally supplied with Gateway computer system that had sound cards with digital outputs. While some versions had analog and digital sound inputs, most often the speakers had digital input only. The on-board sound in the eMachines is analog output only, so the speakers are most likely not compatible with your computer. If you want to use those speakers, you will need to locate a PCI sound card with digital output.

Helle there!

First!
1) check your setting for sound to (2 way speakers)
2) Setting for Volume in control panel.
3) connector may be you need a little expantion from radio shack gold ext.
4) be sure you got sound from headphones !! **
Go it!

1ST.-The right jack could be damaged!!
Usually, there is a [+} posaitve & [-] negative input\output to speaker connections. Not all [-]neg. is ground.Sometimes the [+] pos. is grounded. [The exception to the rule is that u SEE the black wire going to ground] the reason I am letting u know this is that u can test the INSIDES of the sound system.
If u can get inside of the unit. Cut the left speaker output [+] posative from both outputs. criss\cross wires.Place left speaker output to right speaker jack[ that does not work!!] & visa versa.If the [LEFT Output] stops working after u plug in the speakers,the internal RIGHT output is damaged. NEEDS TO BE TESTED
If nothing nothing changes.The left still works & the right still does not work, then it is the jack (shorted ?, opened internally ?)