Sound only out of 4 speakers

Turn up the volume on the left or right speakers or turn down the center channel volume to meet your preferences. There should be a setting for that in most receivers.

Hi,here is the basic info for your question..
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Surround Sound System Settings ---- Correct Time Delay Setting in Multi-channel Audio

A correctly set surround sound system can yield dramatic improvements to your
home theater sound or multi-channel music listening experience. In particular,
a correctly set time delay setting between the different channels is essential
for a realistic and unified surround soundfield.
Luckily, most of today's surround processors make setting the time delays
between the rear and the fronts a matter of a few entries in the setup menu.
Yet having a proper understanding of the principles behind correct time delay
settings is essential for the best results.
In this guide, we explain the principles behind time delay settings in surround
sound and show you how to adjust your surround processor or AV receiver for the
best surround sound field.

Time Delay Setting in Multi-channel Surround Sound Systems

Correct home theater speaker placement and properly balanced sound levels
between the different channels in multi-channel audio, while crucial, are not
enough to sustain a unified soundfield in a surround sound setup. A correctly
set surround sound system requires that sound from all the different speakers
reach the listener at exactly the same instant.
This explains why all fronts, left, right and center channel speakers, should
be set at exactly the same distance from the listening position. At the same
time, in a typical home theater setup, the surround speakers are closer to the
viewer than the fronts.

To compensate for this distance discrepancy, surround sound playback systems
apply a split-second delay to the surround sound channels.
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check wiring.speakers can be checked with a 9 volt battery one on each lead it will move if the are operating correctly. check also for wiring/radio shorts.

Reconnect all the wirings of the speaker set. Left and Right sound connectors from the subwoofer properly.

There is no sound driver, they are speakers, they work off of the audio output jack on the back of your PC, on the motherboard. If you have the sound drivers installed for the motherboard, and no sound, then you have plugged the monitor audio cable into the wrong jack on the PC, or you have the settings wrong just as MIKE said above.

I have had this a few times with customers. You might want to check if the sound cards front speaker ports are working correctly. If the card is working, the problem might be with your right front speaker, ckech that it is working. You might also want to check the settings in control panel; this has helped me a number of times.

cheers

To troubleshoot a speaker system where sound is not issuing from all speakers, please do the following:

1. Verify that all cables are plugged in correctly. Make sure the rear and/or center/sub audio cable is plugged in to the correct port. On most surround sound cards, the rear audio port is black, the front audio port is green, and the center/sub audio port is orange. If you do not have a surround sound card, make sure you obtain the proper adapter (discussed in the next paragraph) or use surround sound emulation if your speaker system offers it. If you are not sure if you have a surround sound card, please check with the manufacturer of your sound card for details.
2. Make sure your sound card supports the same amount of channels as your speaker system contains. For 4.1 systems, it should have a front and rear speaker jack on the card. For 5.1 systems, the card should have a front, rear, and center/sub, output. The card should be properly installed and configured. Please contact your sound card manufacturer for details. If you do not have a surround sound capable sound card, you can use the source selector switch or the M3D button on the controller unit (if available). You can also use an adapter to split the signal for the front and rear speakers. This type of adapter is a 3.5mm male to 2-3.5mm female jacks. You can purchase this adapter at your local electronic store. Please refer to your manual if you do not know if your speaker system can emulate surround sound.
3. Try connecting the speakers to a portable sound device such as a walkman or portable CD player. Plug the speakers into the headphone jack, but make sure the volume is lowered so the speakers are not over powered. You can do this for both the front, rear, center/sub speakers to verify that they work. If the speaker system works on the walkman, then you are experiencing a configuration issue with your sound card. Please contact your sound card manufacturer.
4. Check the system Volume Control located in the System tray. Make sure that the volumes are at a reasonable level and are not checked for Muting.

Try these articles as well:

Manual

Setting up the Z5500 with PC, Mac, Xbox, Playstation, DVD Player, etc.

Hope that helps! Should you have any further questions, please feel free to post them here.

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Cheers!
IrishDruid

Blinking LEDs indicate a problem with outputs. Or speaker impedences are too low (below 4 Ohm)

This may be in the sound card settings itself. Even though you may have adjusted the Windows settings {if thats what your using} the sound card needs to also be set up for surround. Some sound cards do not support 4 speakers or surround sound systems. Go to Device Manager and find your sound card and manufacture then check there technical support page for info.

You need to use a digital interface cable between the sound card and the speakers to get all of the 6 channels to work properly.