QSC ISA450 Installed System Power Amplifier

The ISA450 is a THX-approved member of QSC's ISA Series, sized for permanently installed low-impedance systems that don't need the headroom of the larger ISA750. It is rated down to 2 ohms per channel, so a single amplifier channel can feed multiple parallel loudspeaker taps in a retail or restaurant zone.

Rear-panel gain controls with 2 dB detents keep levels tamper resistant once a system is tuned, and a DataPort V2 connector accepts QSC's DPV2 signal-processing accessories. A selectable 30/70 Hz high-pass filter, defeatable clip limiters, and full short circuit, thermal, and RF protection make it a straightforward rack amp for unattended install work.

Output Power (8 ohm stereo)	260 W per channel, 20 - 20,000 Hz, 0.1% THD
Output Power (4 ohm stereo)	425 W per channel
Output Power (2 ohm stereo)	700 W per channel
Output Circuitry	AB
Signal to Noise	100 dB (20 Hz - 20,000 Hz)
Certification	THX approved for professional cinema applications
Dimensions	5.25 in (3 rack spaces) x 19 in x 15.9 in
Net Weight	42 lb (19 kg)