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The ISA-750 Commercial Power Amplifier from QSC is a 3-RU rackmount power amplifier designed specifically for sound contractors. It can be used as a low-impedance solution rated for 2-Ohm operation at 1200W per side, or 8-Ohm operation at 450W per side. The versatile loading options, feature set, and protection circuitry, in addition to the built-in HD-15 DataPort V2 DSP interface capability, ensures a high-value, cost-effective solution for budget-minded installations.

The ISA-750 is housed in a rugged all-metal chassis that features rear-panel gain controls for tamper-resistant operation and 2 dB detents for quick and repeatable settings. The inputs include both XLR and detachable Euro-style connectors, and the outputs feature covered barrier-strip connectors for full safety agency compliance.

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Key Features

  • 450W Per Channel @ 8 Ohms
  • Protection Circuitry
  • Built-In HD-15 DataPort V2
  • DSP Interface Capability
  • Rugged All-Metal Chassis
  • Rear-Panel Gain Controls
  • XLR and Detachable Euro-Style Inputs
  • Covered Barrier-Strip Connector Outputs

Technical Specification

Tech Specs

  • Number of Channels:2
  • Power Class:Class H, 2-tier
  • Watts/Side @ 8 ohms:450W
  • Watts/Side @ 4 ohms:650W
  • Watts/Side @ 2 ohms:1200W
  • Watts Bridged:1500W @ 8 ohms, 2400W @ 4 ohms
  • Inputs:2 x XLR, 2 x 3-pin Euroblock
  • Outputs:1 x Barrier Strip
  • Data I/O:DataPort V2 (remote DSP control)
  • Cooling System:Variable Speed Fan
  • Filters:Yes
  • Frequency Response:20Hz-20kHz
  • THD:<0.03%
  • Overload Protection:Full short circuit, open circuit, thermal, ultrasonic, RF protection
  • Rack Spaces:3U
  • Power Source:Standard IEC AC plug
  • Height:5.25"
  • Depth:15.9"
  • Width:19"
  • Weight:47 lbs.
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