The 4000W QSC Loudspeaker System will make a medium sized room feel like a high end club setup.
 
The QSC KW153s have dedicated drivers to the high, mid and low frequencies for better clarity and higher fidelity sound. It features a 1000W (Continuous RMS) amplifier that drives a 15" LF driver, a 6.6" MF (Middle Frequency) Driver and a 1.75" tweeter, all of which converge nicely thanks to combination of great DSP (Digital Sound Processing) and projection.

QSC KW153 Power Rating: 1000W (Watts) Continuous Class D Amplifier
Dimensions: 580 × 560 × 1168 mm
Weight: 39.5kg
 
QSC KW181 Power Rating: 1000W (Watts) Continuous Class D Amplifier
Dimensions: 516 mm x 595 mm x 761 mm w/casters
Weight: 42.5kg 
 
Features
1000 watt Class D power modules in all models (2 x 500 W continuous)
Extensive DSP featuring DEEP™ and Intrinsic Correction™ enhances system performance
DMT™ (Directivity Matched Transition) ensures matched LF and HF coverage across the entire listening area, eliminating unnatural "dead" or "hot" frequency zones.
Rugged, texture-painted birch enclosures
Four-position Mic/Line gain (full-range models)
Tour-grade 16 gauge steel grilles
Comfortable ergonomic handles