QSC ISA280 Installed System Power Amplifier

The ISA280 is the entry point into QSC's ISA Series, built for permanently installed low-impedance systems that need a cost-effective rack amp rather than a 70V distributed line. It is rated down to 2 ohms per channel, so one amplifier channel can drive several parallel loudspeaker taps in a small zone.

Rear-panel gain controls with 2 dB detents keep levels tamper resistant once 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 round out the feature set for unattended install work.

Output Power (8 ohm stereo)	185 W per channel, 20 - 20,000 Hz, 0.1% THD
Output Power (4 ohm stereo)	280 W per channel
Output Power (2 ohm stereo)	430 W per channel
Output Circuitry	AB
Signal to Noise	100 dB (20 Hz - 20,000 Hz)
Dimensions	5.25 in (3 rack spaces) x 19 in x 15.9 in
Net Weight	36 lb (16.3 kg)