10
EN
Specifications: ISA 280, ISA 450, ISA 750, and ISA 1350
OUTPUT POWER in watts
ISA280
ISA 450
ISA 750
ISA 1350
FTC:
8 ohms, 2 channels driven
185
260
450
800
(20 Hz - 20 kHz, 0.1% THD)
4 ohms 2 channels driven
280
400
650
1300
(20 Hz - 20 kHz, 0.1% THD)
EIA:
16 ohms, 1 channel driven
100
140
250
475
(1 kHz, 0.1% THD)
8 ohms, 1 channel driven
200
280
475
850
(1 kHz, 0.1% THD)
4 ohms, 1 channel driven
300
450
750
1400
(1 kHz, 0.1% THD)
2 ohms, 2 channels driven
430
700
1200
2000
(1 kHz, 1.0% THD)
Bridged Mono:
16 ohms
370
520
900
1600
(20 Hz - 20 kHz, 0.1% THD)
8 ohms
600
900
1500
2800
(1 kHz, 0.1% THD)
4 ohms
830
1400
2400
4000
(1 kHz, 1.0% THD)
FREQUENCY RESPONSE
+0.0, -1.0 dB: 20 Hz to 20 kHz (LF filter OFF, at -10 dB from rated power), -3 dB points: 5 Hz and 50 kHz.
DAMPING FACTOR
>200 at 8 ohm load
>200 at 8 ohm load
>200 at 8 ohm load
>250 at 8 ohm load
INPUT SENSITIVITY
+3.43 dBu (1.15 Vrms)
+2.81 dBu (1.07 Vrms)
+2.81 dBu (1.07 Vrms)
+4.08 dBu (1.24 Vrms)
VOLTAGE GAIN
30.5 dB (33.4 x)
33.0 dB (44.7 x)
35.0 dB (56.2 x)
36.1 dB (64.0x)
OUTPUT CIRCUIT TYPE
AB
AB
H 2-tier
H 3-tier
CURRENT CONSUMPTION
(Ampere, rms, both channels driven, 120 VAC*)
Idle
0.5
0.5
0.6
1.3
1/8 power**, 8 ohms
3.0
3.7
4.0
6.2
1/8 power**, 4 ohms
4.5
6.0
6.3
9.9
1/8 power**, 2 ohms
6.5
9.3
9.2
14.0
* NOTE: for 240 VAC models, multiply all values by 0.5 (one-half).
**
NOTE: 1/8 power is representative of typical program material with occasional clipping.
WEIGHT
36 pounds (20.0 kg)
36 pounds (20.0 kg)
47 pounds (25.0 kg)
68 pounds (30.8 kg)
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
