Computer to Outside speakers

You need a power source: an amplifier or receiver.

any suggestions crutchfiled recommended
Yamaha R-S700 Stereo Home Theater Receiver

Two words "Wireless Speakers". Nothing further to say.

dont you need power for the wireless

Depends on what you mean by power. Power as in batteries, or a outlet to plug them into, yes you do need that. Otherwise, no wires between them and the device sending the audio to them. That is why they are called "Wireless speakers" (stated slow enough for you to understand).

Wireless has nothing to do with how you power them, it is how you get the audio to them. In other words, works on the same concept as a cordless phone. You know, those things that we used to use before cellphones came along, but had a base they sat on to recharge the battery.

I understand that, reason cant go with wireless. we installing them in a gas station so cant change battery ever. prefer wire

Again, you do not use batteries with wireless speakers. If using in a gas station, yes wired will work, but you will need a amplifier with possibly a pre-amp for piping the audio into. If this is for customers, keep in mind that the ruling authorities state that you will have to pay a licensing fee to use that in your place of business, if using something like cd's or tapes. That is why you see most places using something like Sirius/XM for business, or local radio stations.

As for your problem, you would need an electrician to run the wires for the speakers, since it is a business and licensed to operate by the authorities in not only your state, but your county or city/village.

Maybe someone less condescending and more knowledgeable will come along to help.

The speakers you chose are fine, you're now back to cel4145's feedback, you need a receiver to wire them to.

I am not be condescending, I am just laying it out on the table for the OP. If you think that what people post that you do not agree with is condescending, you may want to re-read it in the perspective of if you were the business owner, and some employee wanted to do this work, or if you were the owner, and just wanted to rig something up. Now, if you think what I just stated was condescending, sorry if you cannot take the opinions of others who can see what the OP is doing, and taking it in a reality perspective.

Going back to what I stated, since this is a commercial structure, they will need a licensed electrician to pull the wiring for the speakers, regardless of what type they go with.

Wireless is a pretty good idea. I use some in my room and the wireless signal gets sent from my receiver to a base station which is plugged into an outlet and the wires are ran from there to the speakers. That might work for you and save you a lot of wire running.

Yes you are, your level of knowledge is not stellar either.

Do you have optical out on your computer? If so, you might want a receiver that has optical inputs, such as the Onkyo TX-8050. If you don't need optical inputs, the HK 3390 would work fine. Either would be a good cost savings over the Yamaha.

Thank you no optical out was going from Mini to RCA cable to the receiver.

In regards to license concern, you are right these have to be installed by licensed electrician and they have to have some kind of special license for gas pump. thanks for the concern.

If all it is for, is out at the pumps, look at a 70volt mono speaker system, since you will not need stereo out there. If this is just for inside the store, you can go with a regular mono amp, but need the pre-amp for what ever source you input (ie Sirius/XM for business, FM radio station, etc.)

any recommendations on mono system

Not really. There should be companies in your area that deal with this kind of stuff. Just don't buy the off the shelf stuff at Radioshack, since it is not the same grade of equipment they sold in the 70's.