SPECIFICATIONS ISA 300T ISA 500T ISA 800T
AMPLIFIER PROTECTION Full short circuit, open circuit, thermal, ultrasonic and RF protection.
Stable into reactive or mismatched loads.
COOLING Continuously variable speed fan; back-to-front air flow.
INDICATORS Front Panel: POWER LED (green), 2 each SIGNAL (green) and CLIP (red) LEDs
CONNECTORS Input: (2)XLR, (2)terminal block (“euro” or “Phoenix”) and (1)QSC DataPort V2 connector
Output: screw-terminal barrier strip
LOAD PROTECTION Turn-on/turn-off muting Turn-on/turn-off muting Turn-on/turn-off muting
AC coupling AC coupling Triac crowbar
Clip limiting Clip limiting Clip Limiting
OUTPUT CIRCUIT TYPE AB AB Class-H
POWER REQUIREMENTS (all models) SEE SERIAL NUMBER LABEL ON REAR PANEL FOR THE SPECIFIED OPERATING VOLTAGE
CURRENT CONSUMPTION

@ 120 VAC, typical

(both channels driven) in Amperes

Idle 0.3 0.4 0.5
1/8 power, 8 ohms* 2.6 3.5 4.5
1/8 power, 4 ohms* 4.1 5.9 7.0
1/8 power, 2 ohms* 6.2 9.1 10.3
1/8 power, 70V or 100V* 5.5 6.9 8.5

NOTE: 1/8 power is representative of current draw with typical music program material with occasional clipping. *Pink noise

CONTROLS (all models) Front: AC POWER switch
Back: Gain controls, DIP switch block with 10 poles: Clip Limiters, Stereo/Parallel/Bridge mode
selection, low frequency filter frequency selection.
DIMENSIONS (all models) 19.0" (48.3 cm) wide, 5.2" (13.2 cm) tall (3 rack spaces)
15.75" (40.0 cm) deep (from front mounting rails) including rear support ears
WEIGHT (all models) 44 pounds ( 20.0 kg) 44 pounds ( 20.0 kg) 55 pounds (25.0
kg.)

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

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