From the Manufacturer
the PowerLight™ 1.8 is an advanced professional audio amplifier featuring uncompromised audio performance. A new high frequency power supply, utilizing QSC’s PowerWave™ Switching Technology, has been combined with the rugged audio amplification circuits of traditional QSC amplifiers to produce an amplifier with incredible reliability, thermal capacity and audio performance. The PowerLight 1.8 is rated at 450 watts/channel into 8 ohms, 700 watts/channel into 4 ohms, and 900 watts/channel into 2 ohms
making it ideal for powering subwoofers and high
power, passive full-range speaker systems.
Increased power supply regulation maintains
excellent low impedence performance.
Outstanding audio performance and reliability,
high efficiency design, networkability, and light
weight make this amplifier ideal for all critical
sound system applications