6 QSC Audio Products, LLC
TD-000163-00 Rev. B
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Typical
1
Full
2
Max
3
Idle
1.2 A
8
Ω
6.4 A 12.5 A 25.5 A
4
Ω
10 A 20 A 42 A
2
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ISA Series Performance Specifications (continued)
ISA 280 & ISA 300Ti ISA 450 & ISA 500Ti ISA 750 & ISA 800Ti ISA 1350
INPUT IMPEDANCE 10 kΩ unbalanced
20 kΩ balanced
CONTROLS Front: AC switch, Ch. 1 and Ch. 2 gain
Rear: 10-position DIP switch
INDICATORS POWER: Green LED CLIP: Red LED, 1 per channel
SIGNAL: Yellow LED, 1 per channel
CONNECTORS Input: Active balanced; XLR (pin 2 +) and detachable Euro-style terminal blocks
Output: Screw terminals with safety shroud
DataPort V2: HD-15 female
COOLING Continuously variable speed fan, back-to-front air flow
AMPLIFIER PROTECTION Full short circuit, open circuit, thermal, ultrasonic, and RF protection
Stable into reactive or mismatched loads
LOAD PROTECTION Turn-on/turn-off muting, AC coupling, triac crowbar (on each channel)
OUTPUT CIRCUIT TYPE AB AB H (2-tier) H (3-tier)
AB: Class AB+B complementary linear output
H: Class AB+B complementary linear output with Class H 2- or 3-tier high efficiency circuit
DIMENSIONS 19.0" (48.3 cm) wide, 5.25" (13.3 cm) tall (3 rack spaces)
15.9" (40 cm) deep (rack mounting to rear support ears)
WEIGHT Shipping:
ISA 280:
42 lb (19.1 kg)
ISA 450:
46 lb (20.9 kg)
ISA 750:
50.5 lb (23 kg) 68 lb (30.8 kg)
ISA 300Ti:
50 lb (22.7 kg)
ISA 500Ti:
55 lb (25 kg)
ISA 800Ti:
63 lb (28.6 kg)
Net:
ISA 280:
35 lb (15.9 kg)
ISA 450:
40 lb (18.2 kg)
ISA 750:
44.5 lb (20.2 kg) 77 lb (34.4 kg)
ISA 300Ti:
44 lb (20 kg)
ISA 500Ti:
49 lb (22.3 kg)
ISA 800Ti:
57 lb (26 kg)
POWER REQUIREMENTS Available for 120 or 220–240 VAC, 50/60 Hz
POWER CONSUMPTION
@ 120 VAC
(both channels driven)
Multiply currents by 0.5 for 230V units
US patents pending
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
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