I need some advice about stage monitors

[Rimshot]

Okay, I feel stupid for asking this because I've been around a long time and I should know this and I don't.
I play about 2 or 3 gigs a week with my band (I play music for belly dancers). I have a good set-up with a Yamaha MG16FX board and a 1300 watt Crown amp and a pair of Acoustic Audio speaker cabs wuth 15" woofers and titanium cones (great sound). I have large Corwin Vega speaker cab that I use as a stage monitor but I only have the two main outs in the back of my amp, so I rig up the monitor through the earphone out and it's weak. I know I'm doing something stupid. What do I need and what should I do to get power to the stage monitor?
I already know that I'm being stupid here, so I don't need to hear that again, what I need is some help making this work. It's probably a simple solution, but nobody around me knows.

 

[Chili]

You need another power amp. I'm surprised you got anything at all coming off the headphone jack.

peace.

 

[antichef]

playing gigs several times a week backing belly dancers doesn't sound very stupid

 

[didgijimmy]

playing gigs several times a week backing belly dancers doesn't sound very stupid

I concur, imagine how that would look on a resume!

 

[mixsit]

One side of the Crown mains, one side monitor.

 

[Rimshot]

You need another power amp. I'm surprised you got anything at all coming off the headphone jack.

peace.

Yeah I forgot to mention that I am running it through a small Ibenez head into the monitor cab.
mixit, that's a good idea, but placement in the mix is SO critical to what we do that running two speakers on mono will give me some big conflicts.
I guess the answer is to get another bigger amp. Thanks

 

[stevieb]

Another power amp is in order, but it needn't be that big. I would think that if you are running just one or two monitor mixes, you could do fine with 100 to 200 watts per channel- maybe 400 max.