do these have an amplifier...120 volts or do they plug directly into the computer?
806331
The speaker has an amplifier (so it has own power/volume nob). It comes with a 120V AC to 12V DC switching power adapter that needs to be plugged into the back of the right speaker. An audio jack (stereo) also needs to be plugged into your computer.
197957
No, they do not need to be plugged into a power source, and yes they draw power from the computer.
1387076
Carrie, the speakers are powered from 110v house currant. There is an on/off switch and a tone control on the right channel speaker. You have to turn them on and off seperate from your computer unless you have a power outlet for 110v on your computer.
1388211
These are not powered speakers. You need an amplifier. So these are definitely not meant to be hooked up to a computer.
1408638
They do not have amps in them they are passive, you need an amp. but they will handle 400 watts.
934003
Yes, these do plug into the computer using USB. I've never had to use the driver, it's pretty much plug and play, and they're pretty ok as long as you treat them as normal headphones.
298450
I have not used an amplifier for these speaker. I use them attached to my computer and am extremely satisfied with their sound. Their is a built in amp on one of the speakers.
87499
Not sure because there is a circuit board attached to them, but the plug is 110V.
246870
They're passive speakers so you'd need an amplifier between your computer and your speakers. I use an Onkyo 8255 receiver/amplifier, which my computer is connected to (laptop 1/8" jack into RCA jack using an adapter).
1648688
These are not powered speakers, they need to be connected to a receiver or amplifier. If you wanted to use these with a computer you would first need to connect the pc's audio output to an amplifier.
791791
They do not plug directly into a computer. I have an audio interface (in my case, an Avid Rack 11), which interfaces with the monitors. I'm sure there are plenty of ways to accomplish an interface, but the monitors do not plug directly into a computer.
746495
No. these don't. They work only with the USB of your computer. They are just not loud enough. The others which are also Logitech, do need to be plugged in but they give a good sound output. I hope this helped.
901045
The speakers measure 2.5"W, 4.5" H, and 5" D. No, you do not plug the speakers into an outlet. There are 2 plugs that go into the computer (one in the USB slot and the other in the earphone plug. I really like them.
753829
Yes. they have the 1/8" jack with the 1/4" adapter, but works fine on computer. you may want a amplifier for them though.
1776694
12 volts. 0.8 Amps. They move a lot of air but are loud. I SAID, THEY MOVE A LOT OF AIR BUT ARE LOUD! Using a PWM with them helps.
380475
They are powered by an AC adapter via electric outlet. USB just doesn't have the power to push out good sound in most cases.
1515307
These speakers plug into a stereo receiver or amp, it does not matter if it is 110 or 220 volt.