2x FBT ProMaxX 14 A
2x B&C 15PZB100 in reflex enclosures

FBT ProMaxX 14 A
Loud and crisp, yet with low ear fatigue. They are very loud and clear, and the sound is tweakable, although often unnecessary.They compare to L'Acoustics, Kling & Freitag, Seeburg, etc.. From personal experience, these are a league above QSC K12, Yamaha DZR, and EV-ETX.

B&C 15PZB100 in reflex enclosures
These 15" subwoofers outperform many 18" boxes in both loudness and depth. Every professional or loudspeaker engineer will vouch for B&C components. Made in Italy from top components and hosted in a matched reflex enclosure, these loudspeakers deliver a fast, punchy sound. Bass notes will be distinguishable and have minimal unwanted resonance. These are fantastic for non-ideal acoustic environments