The ISA Series features seven models including four low impedance models (ISA 280, ISA 450, ISA 750, ISA 1350) rated for 2-ohm operation, and three "Ti" versions with isolated 25, 70 and 100 volt outputs for distributed audio systems (ISA 300Ti, ISA 500Ti, ISA 800Ti). Versatile loading options and a comprehensive feature set make the ISA Series a rugged, cost-effective power solution for any permanently installed sound system.
- Drives 70V lines directly with 1500 watts per channel
- Rear panel gain controls for tamper resistance; 2-dB detents allow 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 (30 Hz or 70 Hz) protect speakers and prevent speaker transformer saturation, with minimal effect on program material
- Three-tier Class H complementary bipolar output circuitry reduces AC power draw and waste heat by 50%
- Front panel indicators include power, signal, clip and protect
- Covered barrier strip output connectors for safety agency compliance
- Automatic on-demand variable-speed fan: quiet normal operation, with maximum cooling when needed
- Rear-to-front air flow helps keep 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
- Power Rating Stereo @ 2 ohms: 2000W per channel
- Stereo @ 8 ohms: 800W per channel
- Bridged @ 8 ohms: 2800W
- Damping Factor >250 @ 8 ohms
- Input Sensitivity 1.24 Vrms @ 8 ohms
- Input Impedance 10 kOhm/20 kOhm (unbalanced/balanced)
- Gain 36.1dB
- Frequency Response 20Hz to 20kHz, +/-1dB
- Signal-to-Noise Ratio 100dB (20 Hz - 20 kHz)
- Total Harmonic Distortion (THD) <0.03%, 4 and 8 ohms, 20 Hz - 20 kHz, 10 dB below rated power
- Input Connections 2 x 3-pin XLR Female, Balanced
- 2 x 3-pin Detachable EuroBlock
- 1 x HD-15 DataPortV2
- Output Connectors 2 x Covered Barrier Strips
- Controls Front Panel 1 x Power Switch
- Controls (Rear) 1 x 10-Position DIP Switch Set
- 2 x Ch.1, 2 Gain Knobs
- Indicators 2 x Red Clip LED
- 2 x Green Signal LED
- 1 x Green Power LED
- Cooling Continuously variable speed fan, back-to-front air flow
- Power Consumption 1.3A at idle
- 6.2A at 1/8 Power, 8 Ohms
- 14.0A at 1/8 Power, 2 ohms
- Dimensions 19 x 5.25 x 15.9" (483 x 133 x 400mm)
- Weight 68 lbs (30.8 kg)
- Specialties Drives 70V Lines Directly with 1500W/Ch. Output
- Rear Panel Controls
- Comprehensive Protection Circuitry
