Used QSC USA 900 Power Amp

Used QSC USA 900 Power Amp in Excellent condition delivers reliable performance with 450 watts per channel at 4 ohms or 275 watts at 8 ohms. This rugged, rackmountable amplifier is known for its clean sound, efficient cooling system, and durable build — perfect for live sound or fixed installations. Designed for professional audio applications, the USA 900 offers balanced XLR and 1/4" inputs, and binding post or Speakon speaker connections for versatile integration.