Speakers set up properly, but no sound from PC

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 need an external sound card. plug into your pc or laptop then plug in your speakers , hey presto. prob solved. and cheaply to.

Are speakers turned on with volume up?
Are there batteries in the speakers of not powered by the outlet?
Are the speakers plugged into the wall as well as the computer's earphone jack?
Is windows set on mute?

I would check the above first.

I have tried everything I can think of to fix the problem, but finally gave up and called the person who I purchased it from last June. As I had been using a headset, I don't think we ever tested if the speakers worked with this PC. He is coming to look at it tomorrow. I seem to have ruled out everything except the connection ports on the PC. I hope that he can solve the problem tomorrow.

check to see the sound is working under the control panel .. system icon click and goto device manager

you might have a bad driver for the sound device or the device is bad on the motherboard

also test under sound devices.. and set the default device to use ..

your speaker connections are plugged in incorrectly or the speakers are not plugged in and powered on.
check the back of the computer where your speakers are plugged in and make sure you speakers are plugged into the right colors

What a lovely daughter, how very nice of her,

here goes....straight for Mr. Koss

To Operate with AC Adapter

1. Open battery compartment located at the back of both speakers and remove wires.
2. Replace battery covers.
3. Connect DUAL PLUG CONNECTOR on left speaker to right speaker at connection marked "TO LEFT SPEAKER."
4. Connect remaining wire with 3.5mm plug to headphone jack on your audio source.
5. Connect AC adapter (not included) to back of left speaker at connector marked "DC 6V." Plug remaining end of AC adapter into wall outlet. Be sure your AC adapter is built with the center pin as ("-") negative. Connect remaining wire with 3.5mm plug to the headphone jack on your audio source.
6. Turn ON/OFF switch at back of right speaker to "ON."
7. Set "INPUT SELECTOR" switch to audio source.
8. Turn on audio source
9. Adjust sound in the following ways: Turn volume control to desired level; push Bass Boost button located on right speaker to "ON" for added bass; push Treble Boost button on right speaker to "ON" for added treble
10. Operating a microphone through your speakers require an additional 3.5mm plug to 3.5mm plug cable (included). Connect cable with 3.5mm straight plug to right speaker at input marked "MIC" on back of speaker. Plug the remaining 3.5mm L--plug into the mic input on audio source. Connect your microphone to the front of your speakers at "MIC" input (microphone not included)

Hope you have all of the skinny you need, good luck,
please leave a rating, thank you kindly

Although some monitors have built in speakers, most people have stand alone speakers. If the old monitor had built in speakers and now it is unplugged you won't hear sound. Even if the speaker cable is still plugged into the sound output on the back of your computer, the monitor must be plugged into an electrical outlet to have power.

I'd recommend buying a new set of external speakers if this is the situation.

If you never had speakers built into the monitor then normally changing monitors would make no difference whatever. The only explanation that makes sense under those conditions is that in the process of replacing the monitor, you dislodged the speaker jack from the sound output on the back of the computer.

Make sure your external speakers have electrical power plugged in, the power is on (green light on at least one speaker lights up) and the volume on the speakers is at least half way up.

Unplug the speaker from whatever hole it is plugged into and plug it firmly back in and test sound.

If still no sound other than some static on the speakers, try every single hole on the back of the computer that the jack will fit properly and test for sound.

Let me know if you have further questions.

Honest1abe

Hello there! lellya
First,
1) you have to tell , what kind of sound card you got? on board audio? A7, or Creative Audigy? 5.1 or regular.
2) then, you have to connect one speaker to the other, one two way connector cable, for the 2 KOSS speakers.
3) another cable that goes in back of your koss and from the out of your KOSS Speakers to the input of your sound card, at back of your PC, this input is your sound card jack.
4) its supose to work like so.
good luck

well some computers dont support 4 speakers.