- Description
Details
This QSC ISA280 2 Channel Power Amplifier includes a selectable high-pass filters 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. Selectable high-pass filters are included to protect speakers and prevent speaker transformer saturation with minimal effect on program material. Versatile loading options and a comprehensive feature set make the ISA Series a rugged, cost-effective power solution for any permanently installed sound system.
The ISA Installed System Amplifiers are designed to meet the needs of sound system designers and contractors worldwide. Three models feature isolated 25, 70, and 100 volt outputs for distributed sound systems, while four low impedance models are rated for 2 ohm operation.
- Features
Features
- 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
- Front panel indicators include power, signal, and clip
- 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
- Specification
Stereo Mode Both Channels Driven 8 Ohms 20 Hz-20 kHz 0.1% THD 185W 4 Ohms 20 Hz-20 kHz 0.1% THD 280W 2 Ohms 1 kHz 1% THD 430W Bridged Mono Mode 8 Ohms 1 kHz 0.1% THD 600W 4 Ohms 1 kHz 1% THD 830W XF Output Power, Bridged Mono Mode Signal to Noise (20 Hz-20 kHz) 100 dB Distortion (SMPTE-IM) Less than 0.01% Input Sensitivity @ 8 ohms 1.15v(+3.4 dBu) Voltage Gain @ 8 ohms 33.4x(30.5 dB) Output Circuitry Class AB Distortion (Typical) 20 Hz-20 kHz: 10 dB below rated power Less than 0.03% THD, 4 ohms and 8 ohms 1.0 kHz and below: full rated power Less than 0.03% THD, 4 ohms and 8 ohms Frequency Response 20 Hz-20 kHz, +0/-1 dB; -3 dB points: 5 Hz and 50 kHz Damping Factor (direct outputs) Greater than 200 at 8 ohms, ISA 1350 greater than 250 Input Impedance 10 k ohms unbalanced, 20 k ohms balanced Input Clipping 10 Vrms (+22 dBu) Cooling Continuously variable speed fan, back-to-front air flow Amplifier Protection Full short circuit, open circuit, thermal, ultrasonic, and RF protection Power Requirements 120, 230, VAC, 50-60 Hz Dimensions (H x W x D) 5.25" (133 mm) x 19" (483 mm) x 15.9" (404 mm) Net Weight 36 lbs (16.3 kg) Shipping Weight 42 lbs (19.1 kg) - Reviews
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