Marck,

Just in case the multitude of answers aren't enough, I'll add to the confusion by putting my 2 cents in.

I use a pair of ElectroVoice EV SXA360's http://electrovoice.com/download_document.php?doc=1413 . They are extremely well built speakers with the power to handle large areas. They are a little pricey but the sound is great.

They are more compact than my JBL EON 15's were and yet still pack more punch. When I put them together with my ElectroVoice EV SBA760 http://electrovoice.com/download_document.php?doc=1430 they really kick.

The sub has a built in crossover, but I use the one in my DBX DriveRack PA.

But if you're trying to stay lightweight, then just leave off the sub and you'll still get a lot of bass

Richard