Luis,
I use a pair of Mackies SRM450 since a few years now. Before this set I had JBL EON15P's. (JBL EONs sound 'powerless' comparded to the SRM... IMHO)

Pro 450 :
Sound is excellent, huge & wide throw, bright sound, also unbelievable low.
I built myself a 15" folded bin-sublow cabinet, modified (low-pass filter) a VERY OLD (30 years !) but solidstate Yamaha mono 150W amp, to add some real-sub-low. This Yammie is beer-resistent and still playing.... and heating my cabinet.

Con 450 :
Weight.

Some of our friends prefer EV's (100Sx ?) because of the lower weight, but EV's have less Audio Power

We (Wietse & I) love our SRM's and heard nothing better or more compact.

Roel

[This message has been edited by Roel (edited 01-12-2003).]