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There are no drivers for the A425 speakers. Make sure the power cable is attached to the speakers as well as the speakers plugged into the correct jacks. If your speakers are plugged in and powered on and u still have no sound; check to make sure the sound card drivers are installed.
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Are this powered speakers connect to the same mains power socket as the computer. If not you may be getting an earth loop which causes a humming sound. Connect these speakers to the same power outlet, if you have not sufficient outlets use a power board.
You could have an earth loop which causes a hum/buzzing sound.
Is your computer and powered speakers plugged into different mains?
Connecting amplifiers and speakers to different power sockets will create earth loop problems
This can be fixed by using a single power board connected to a single mains power socket, then connecting all the computer components and powered speakers into this one power board.
These are what is called line powered speakers. Some sound cards have the power to amplify the sound enough to be heard plainly, and others do not. Try adjusting the volume from the computer. If that does not work and the speakers are plugged in to the green port on the sound card, I would recommend replacing the speakers with amplified (powered) ones.
This issue could be caused by any of
the below reasons.
Sound card does not work
Speakers are not connected properly
No power to the speakers
Volume on speakers turned down
Volume on sound card turned down
make sure the speaker setup is correct. It is
possible that during an installation of another program that the speakers
software setup was changed causing issues with your sound. To do this
follow the below steps.
Open "Sounds and Multimedia Properties" or
"Sounds and Audio Devices" in
Click the "Audio" tab
In the Audio tab click the "Advanced" button
under "Sound Playback."
In the Advanced Audio Properties window make sure your
speaker setup is correct. If you're not sure what to set this
setting as, set it to the default "Desktop Stereo
If you changed this setting click "Apply"
and close out of all windows.
Ensure that the sound card works
properly by connecting either another pair of speakers to the
computer, or a pair of headphones.
the left speaker will generally have a cable
cannot be removed from it. This cable should be connected to the
other speaker (generally this cable has no color or is white / gray).
The next cable is the line out cable, it is generally green in color
and should go from the right speaker to the line out hole in the
back of your sound card.
Finally, the power cable generally should be connected to the
back of the right speaker, or in some cases, the sub woofer. The power
cable can vary; while most speakers are in the above configuration,
some speakers may also not utilize a power cable connection but
instead have batteries, while other speakers that connect to the
side of your monitor may use a portion of the power from the monitor
itself (via another type of cable).
Most speakers will have a small
(light) indicating if the speaker is on. Verify that if this light
is present that it is illuminated.
If no LED is seen or the speakers don't appear to be
getting power, verify the power cable is properly connected to a
working outlet or if your speakers use batteries that the batteries
are good. Finally, most speakers can be turned on either by using a
button or by moving the volume knob from left to right.
Verify that the volume knob on the
speakers is properly turned up. If you are un-certain what
direction to turn the knob, play a long sound file or CD and while
the sound is being played, adjust the knob left to right or up to
The sound is also able to be turned up and down
through the software installed on the computer. Verify the sound
settings in the software are properly turned up.
Finally, if all of the above recommendations do not resolve your issue
and connecting another pair of speakers or headphones to the computer
does work, it is likely that the speakers are bad. It is recommended that you
contact the manufacturer of the speakers or
computer for a new replacement.
what really matters is the quality of the usb speakers. check specifications such as wattage first and find reviews if possible. however usb speakers will probably not come close to separate speakers. i'd recommend buying a cheap sound card ($20 or so). these work great overall. $20 spent on a sound card will be a better trade off than $20 spent on speakers. just use your old speakers with the new sound card and you'll have plenty of power. after this i'd recommend headphones as they work great in this case. finally moving the sound card would probably work fine, but i have doubts.