QSC ISA280 Stereo Power Amplifier - 185 Watts/Ch @ 8 ohms 280 Watts/Ch @ 4 ohms

 

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Dale #:QSC-ISA280

Availability: In Stock

Available for immediate shipment and pick-up from our Jamaica, New York location. In-store pick-up is available Monday through Friday from 8:30 am to 5:30 pm
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  • Designed as a cost-effective solution specifically for sound contractors, the ISA 450 features 280 Watts per channel at 4 Ohms. Versatile loading options and a comprehensive feature set make the ISA Series a rugged, cost-effective power solution for any permanently installed sound system.

    Features
    • Four models for low-impedance applications
    • 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)
    • 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
    • Simple barrier strip connection determines output mode

    Housed in a rugged 3-U chassis, it features 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.

  • Power Rating Stereo @ 2 ohms: 430W per channel
    Stereo @ 8 ohms: 185W per channel
    Bridged @ 8 ohms: 600W
    Damping Factor >200 @ 8 ohms
    Input Sensitivity 1.15Vrms
    Input Impedance 10 kOhm/20 kOhm (unbalanced/balanced)
    Gain 30.5dB
    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 0.5A at idle
    3.0A at 1/8 Power, 8 ohms
    6.5A at 1/8 Power, 2 ohms
    Dimensions 19 x 5.25 x 15.9" (483 x 133 x 400mm)
    Weight 36 lb (16 kg)
    Specialties Stable into reactive or mismatched loads
    Rear Panel Controls
    Comprehensive Protection Circuitry
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