Description
Les amplificateurs ISA sont une solution idéale et économique pour les installations fixes nécessitant des enceintes à faible impédance ou en mode distribué. La gamme comporte sept modèles : quatre modèles faible impédance (ISA 280, ISA 450, ISA 750, ISA 1350) offrant une impédance minimale de 2 ohms et trois modèles « Ti » (ISA 300Ti, ISA 500Ti, ISA 800Ti) dotés de transformateurs des sortie pour les systèmes audio en mode distribué de 25, 70 et 100 volts. La connexion DataPort V2 Lite facilite l'utilisation d'accessoires pour amplificateur (XC-3, LF-3 et SF-3.) offrant des solutions économiques de crossover et de filtrage du subwoofer.
Caractéristiques
- Puissance totale de sortie jusqu'à 2400 watts
- Châssis 3U avec commandes de gain à l'arrière avec paliers de 2 dB
- Limiteurs d’écrêtage désactivables et indépendants pour réduire la distorsion et protéger les enceintes
- Les filtres passe-haut sélectionnables protègent contre la saturation du transformateur et la course excessive des parties mobiles
- Comprend une protection contre la surcharge thermique, infrasonique, électrique et contre les courts-circuits
- Connecteurs d’entrée XLR et Euroblock 3 broches et sorties sécurisées avec binding post
- Connecteur DataPort V2 non compatible avec Q-SYS, BASIS ou CM16a
Spécifications techniques
| SPECIFICATIONS | ISA280 | ISA450 | ISA750 | ISA1350 | ISA300Ti | ISA500Ti | ISA800Ti |
| OUTPUT POWER PER CHANNEL, STEREO MODE, both channels driven | |||||||
| 8Ω, 20 Hz–20 kHz 0.1% THD 4Ω, 20 Hz–20 kHz 0.1% THD 2Ω 1 kHz 1% THD |
185 W 280 W 430 W |
260 W 425 W 700 W |
450 W 650 W 1200 W |
800 W 1300 W 2000 W |
185 W 280 W 430 W |
260 W 425 W 700 W |
450 W 650 W 1200 W |
| DIRECT POWER PER CHANNEL, STEREO MODE | |||||||
| 70V, 20 Hz–20 kHz +0/-0.3 dB 0.5% THD | - | - | - | 1500 W | - | - | - |
| TRANSFORMER-ISOLATED OUTPUT POWER PER CHANNEL, STEREO MODE | |||||||
| 70V or 100V, 50 Hz–16 kHz 0.5% THD 25V, 50 Hz–16 kHz 0.5% THD |
- - |
- - |
- - |
- - |
300 W 200 W |
500 W 300 W |
800 W 500 W |
| OUTPUT POWER, BRIDGED MONO MODE | |||||||
| 8Ω, 1 kHz 0.1% THD 4Ω 1 kHz 1% THD |
600 W 830 W |
900 W 1400 W |
1500 W 2400 W |
2800 W 4000 W |
600 W 830 W |
900 W 1400 W |
1500 W 2400 W |
| TRANSFORMER-ISOLATED OUTPUT POWER, BRIDGED MONO MODE | |||||||
| 140V or 200V, 50 Hz-16 kHz 0.5% THD | - | - | - | - | 600 W | 1000 W | 1600 W |
| Signal to Noise (20 Hz-20 kHz) | 100 dB | ||||||
| Distortion (SMPTE-IM) | Less than 0.01% | Less than 0.01% | Less than 0.02% | Less than 0.01% | Less than 0.01% | Less than 0.01% | Less than 0.02% |
| Input Sensitivity @ 8 ohms | 1.15 V (+3.4 dBu) |
1.07 V (+2.8 dBu) |
1.07 V (+2.8 dBu) |
1.24 V (+4.1 dBu) |
1.15 V (+3.4 dBu) |
1.07 V (+2.8 dBu) |
1.07 V (+2.8 dBu) |
| Maximum Voltage Gain | 33.4× (30.5 dB) |
44.7× (33 dB) |
56.2× (35 dB) |
64.0× (36.1 dB) |
33.4× (30.5 dB) |
44.7× (33 dB) |
56.2× (35 dB) |
| Output Circuitry | Class AB | Class AB | Class H, 2 tier | Class H, 3 tier | Class AB | Class AB | Class H, 2 tier |
| THX Approved | - | Yes | Yes | - | - | - | - |
| Weight - Net | 36 lb (16.3 kg) |
42 lb (19 kg) |
47 lb (21.3 kg) |
68 lb (30.8 kg) |
44 lb (20.0 kg) |
49 lb (22.3 kg) |
57 lb (26 kg) |
| Weight - Shipping | 42 lb (19.1 kg) |
48 lb (22 kg) |
53 lb (24.0 kg) |
77 lb (34.4 kg) |
50 lb (22.7 kg) |
55 lb (25 kg) |
63 lb (28.6 kg) |
| ALL MODELS | |||||||
| Distortion (Typical) 20 Hz–20 kHz: 10 dB below rated power 1.0 kHz and below: full rated power |
Less than 0.03% THD, 4 ohms and 8 ohms Less than 0.03% THD, 4 ohms and 8 ohms |
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| Frequency Response 10 dB below rated output power |
ISA 280, 450, 750 and 1350: 20 Hz–20 kHz, +0/-1 dB; -3 dB points: 5 Hz and 50 kHz |
ISA 300Ti, 500Ti and 800Ti: Direct outputs: -3 dB @ 50 Hz, -0.5 dB @ 20 kHz; XF outputs: 50 Hz–16 kHz, +1/-3 dB |
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| Damping Factor with 8Ω Load (direct outputs) | Greater than 200; ISA 1350 greater than 250 | ||||||
| Output Regulation (isolated outputs) | Less than 1.5 dB | ||||||
| Input Impedance | 10 kΩ unbalanced, 20 kΩ balanced | ||||||
| Input Clipping | 10 V rms (+22 dBu) | ||||||
| Cooling | Continuously variable speed fan, back-to-front air flow | ||||||
| Connectors, each channel | Input: Active balanced; 3-pin Euro-style detachable terminal block and XLR (pin 2+) Output: Covered barrier strips DataPort V2: HD-15 connector |
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| Controls | Front: AC switch Rear: Ch. 1 and Ch. 2 gain knobs, 10-position DIP switch |
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| Indicators | PWR-ON: Green LED; SIGNAL: Green LED (1 per channel); CLIP: Red LED (1 per channel) |
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| Dimensions (HWD) inches | 5.25 x 19 x 15.9 / 3RU | ||||||
| Dimensions (HWD) mm | 133 x 483 x 400 / 3RU | ||||||
| Amplifier Protection | Full short circuit, open circuit, thermal, ultrasonic, and RF protection; Stable into reactive or mismatched loads |
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| Power Requirements | 120 or 230 VAC, 50–60 Hz | ||||||
| Load Protection | On/off muting; Triac crowbar: ISA 750, 1350, and 800Ti; AC coupling: ISA 280, 300Ti, 450, and 500Ti | ||||||
All specifications are subject to change without notice.