Question about this PA System

[tisza]

Something like this:

http://www.musiciansfriend.com/srs7/g=rec/search/detail/base_pid/632200/

Since it has 4 channels, can I use 2 for guitar, 1 for vocals, and 1 for bass? And will it all come out good? Sorry for the stupid question, but I know little to nothing about guitar amps and stuff. Could someone give me like a little runthrough on PA Systems and such?

[Aes820]

That PA will be good to run vocals through at small gigs.

You can run a line out from a guitar or bass amp through it if you wish. But for a PA of that size I would reccomend that you use your own guitar and bass amps for them each and only rely on the PA for the vocals.

Plugging an electric guitar or a bass guitar directally into the inputs of the PA wont give you very good results.

[isojoe420]

What about this one Aes?
http://www.musiciansfriend.com/srs7/g=live/search/detail/base_pid/630542/