Need to no the dc volts to run fps 9634 speakers

first off need to know specs what voltage it uses ac or dc
amp draw and volts should be market on speakers then you need to no if dc volts what part is negative and positive on terminal connection send model #

yes, your speakers will be damaged. do not connect 19 volts to a 9 volt device. go to walmart or radioshack and purchase the correct power supply.

Three C cell size batteries per speaker is what you use if you are on the go.

http://www.shopping.com/Koss-HD-50/the-paradox-decent-small-computer-speakers/1386310/reviews#tabAnchor

Hmmm.

EACH C cell battery produces 1.5 Volts (DC)
3 times 1.5 Volts (DC) = 4.5 Volts
Total of 9 Volts (DC)

500 MilliAmps?

Your main concern is with the Voltage.
The Amperage can vary. It can be more than needed.
Why?

Because Amperage represents Current.
How much Current is available.

(Water hose example;
Voltage is the speed, or velocity of the water coming out. Amperage is how many gallons per minute that comes out of the hose)

However, you better make sure that EACH speaker receives No more than 4.5 Volts (DC)
Since you do not have the special splitter adapter cord that comes with the power brick, you will have ensure that EACH speaker receives no more than 4.5 volts.

This is if you are trying to use a 9 Volt (DC) power supply. (AC adapter)

Please post additional questions in a Comment.
Regards,
joecoolvette

C cells are 1.5 volts each. If the speakers use three of them that means you'll need a 4.5 volt supply. If each speaker needs batteries, you'll need to feed that voltage to each speaker, and the supply should have enough current for the total load. A 1-amp rating is probably fine.

Computers always use DC voltage. Computer speakers receive DC voltage from the computer.
DC voltage has a Positive and Negative polarity.

In the power jack of the speaker, the Center pin is the Positive connection. The outer shell is the Negative connection.

Center hole of the DC adapter plug - Positive.
Outer shell of the DC adapter plug - Negative

Voltage 5 Volts DC.

In case you need it,

http://support.dell.com/support/edocs/dta/acs5/

Hard to find info. It looks like they run on about 14 to 15 volts dc. It's not critical. Check local electronic surplus stores or thrift stores before spending a lot more elsewhere.

You do not need a driver for these speakers, all you have to do is plug them into the sound card on your computer. If the speaker audio cable is colored green, then you should just be able to connect it to the green plug on the back of your computer. If not, what does the audio plug/jack look like?

They run @ 12 volts 850mA. So an adapter with center pin positive at around 1A(1000mA) would give it enough "headroom". This means it would run cooler and last you longer. Amperage consumption is determined by the power it is producing, how loud you are playing the setup.

Your adapter is Part No. AVX300-A6859, Model No. 9701-00748-IUND.
Or You could get a universal that is rated for output of 18volt DC, 650ma, Center Positive.
I have used a 15volt DC, 900 ma with no problem, but I never run the volume high.

Good Luck

NO, it is very under rated and powered. You need an 18 volt and not a 12 VOLT. They should not be that hard to find in an electronics store. Also the amp rating is also important. Make sure you are matching both amps and volts AC or DC to the the label on the woofer or you could end up blowing the out.