QSC ISA300Ti
Versatile Low-Impedance or 70V Installation Amplifier
| Price: $615.00 |
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Unique among distributed sound power amplifiers, the "Ti" versions will drive 8 or 4 ohm loads and a distributed system on the same channel simultaneously. This enables a contractor to reduce the number of required amplifier channels by allowing a limited number of distributed speakers to be attached to the same amp as is powering the main sound system.
Housed in a rugged 3-U chassis, all seven models feature rear panel gain controls for tamper resistant operation with 2 dB detents for quick and repeatable settings. Inputs include both XLR and detachable Euro-style connectors. Outputs feature covered barrier strip connectors for safety agency compliance, and for added versatility, a DataPort V2 (Version 2) terminated with an HD-15 connector is provided for use with DPV2-compatible signal processing accessories such as the XC-3 Crossover, SF-3 Subwoofer Filter, LF-3 Low Frequency Filter and the DSP-3 with external power supply.
Selectable high-pass filters are included to protect speakers and prevent speaker transformer saturation with minimal effect on program material. The ISA Series provide additional protection circuitry including DC, infrasonic, thermal overload, RF and short circuit protection.
On the ISA 750 and ISA 800Ti, class H complementary bipolar output circuitry increases system efficiency by reducing AC power draw and waste heat by 40%. Cooling is accomplished via an automatic variable speed fan, which pulls air from back to front.
FEATURES
- Four models for low-impedance applications
- ISA 1350 drives 70V lines directly with 1500 watts / channel
- Three "Ti" versions include low-impedance and isolated 25, 70, and 100 volt outputs for distributed audio systems
- Rear panel gain controls for tamper resistant operation with 2 dB detents for quick and repeatable settings
- XLR and detachable Euro style input connectors
- DataPort V2 for use with DPV2-compatible signal processing accessories (XC-3, SF-3, LF-3) and DSP-3/DSP-4 (with external power supply)
- Independent defeatable clip limiters for reduced distortion
- Selectable high-pass filters protect speakers and prevent speaker transformer saturation with minimal effect on program material (30 Hz or 70 Hz on non-"Ti" models, 50 Hz or 75 Hz on "Ti" models)
- Class H complementary bipolar output circuitry reduces AC power draw and waste heat by 40% on ISA 750 and 800Ti, and by 50% on ISA 1350
- Front panel indicators include power, signal, and clip (and protect on ISA 1350)
- Covered barrier strip output connectors for safety agency compliance
- Automatic variable-speed fan for quiet normal operation with maximum cooling on demand
- Rear-to-front air flow keeps equipment racks cool
- Stereo, Bridge, or Parallel operating modes
- Comprehensive protection circuitry including DC, infrasonic, thermal overload and short circuit protection
- 3-year warranty plus optional 3-year extended service contract
| Specifications: | |
| Cooling: | Continuously variable speed fan, back-to-front air flow |
| Damping Factor: | 200 at 8 ohms |
| Dimensions (L-W-H): | 19" (48.3 cm) rack mounting, 5.25"(13.3cm) tall (3 rack spaces), 15.9" (40 cm) deep (from front mounting rails) Inches |
| Frequency Response: | 20 Hz-20 kHz |
| Input Connectors: | Active balanced; 3-pin Euro-style detachable terminal block and XLR (pin 2+) |
| Input Impedance Balanced: | 20 k ohms |
| Input Sensitivity: | 1.15v dBu |
| Output Circuitry: | Class AB |
| Output Connectors: | Covered barrier strips |
| Power Rating 2 Ohm Stereo: | 430 Watts |
| Power Rating 4 Ohm Bridge: | 830 Watts |
| Power Rating 4 Ohm Stereo: | 280 Watts |
| Power Rating 8 Ohm Bridge: | 600 Watts |
| Power Rating 8 Ohm Stereo: | 185 Watts |
| Power Rating @ 70V: | 300W Stereo, 600W Bridge |
| Rack Units: | 3 U |
| Signal to Noise Ratio: | 100 dB 20 Hz-20 kHz |
| Voltage Gain: | 33.4x (30.5 dB) dB |
| Weight: | 44 Lbs |