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Re: up grading speakers
This is a dedicated sound card to split the sound the way it should be heard, there are specific types of speaker systems you can use with this either a 2.1,5.1 or 7.1 set up, but dont just buy 8 (4pr) of normal speakers as it won't work, buy the 2.1, 5.1 or 7.1 speaker sytem.
Also the sound will only be reproduced in supported games and dvd movies, other than that you will only achieve normal stereo
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If you have good speakers but no sound from your computer then several checks need to be made. One is did you plug the speaker cable into the correct connector? If so then next depends on your sound card and operating system. You may need to change sound settings which in windows is easy to find as "sound" in the control panel area amongst other links. Try this;
it means that your computer doesn't have sound card, but most PC has built in sound card. all you have to do is, go to bios setting ( mostly press ESC or F2 or DEL) upon booting, set sound enable, save setting and exit. If OS doesn't have built in driver, you should install driver for your sound card in order to get it works. It's good idea if you have mainboard driver CD with you. It contains all the driver of your PC
The speakers themselves don't need drivers, but the sound card in the computer does. If yours are missing you can find them online. If this is a name-brand computer, visit the manufacturer's website and follow the link to support and downloads. For a home-built or custom-built machine, you will want to get drivers from the motherboard manufacturer if the sound is integrated, or the sound card maker if it's a separate card. Since you don't give the brand of computer I can't give you any specific links, but a few minutes searching on the Web will give you the URL.
If the drivers are installed and Windows recognizes the sound card, but you just don't get sound, be sure the speakers are plugged in to the right jack, the sound card settings are correct, and that the speakers have the right power connected. Sometimes it's easy to overlook the obvious things.
The new HP Windows 7 computer most likely already has a sound card built in. On the back of your computer you should find at least three 1/8" plugs for sound related use. If there is just three, one is for line-in, one is for line out (speaker connection), and the other is for the microphone. You would connect your old speakers to the line-out connection (usually a pale green color). If you have more connections, then you have a sound card that supports surround sound. You'll have to refer to the computer's documentation to determine which output to connect to.
The sound card is more often than not integrated into your motherboard, check your device manager and you will probably have a realtek sound card. If so it is integrated, the only ones that arent are the Turtle Beach and Creative Labs Soundblaster models which are PCI expansion cards plugged into the motherboard. Ive never heard of manufactured computers using a soundcard that isnt integrated unless you paid for that upgrade.
Try the speakers on another PC with good working sound. This will indicate either a speaker problem or a sound card issue.
If speakers work ok on 2nd pc, then you have a sound card issue on your pc. If speakers are still scratchy on 2nd pc.. check the metal connector end, make sure it is clean and shiny. If there is any rust or other oxidation, clean it off with a very fine grade of sand paper