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QSC ISA800Ti, 2 x 650W @ 4ohms & 100v contractor amplifier

  • Rear panel gain controls for tamper resistant operation

  • XLR and detachable Euro style input connectors

  • DataPort V2 for use with DPV2-compatible signal processing accessories

  • Independent defeatable clip limiters for reduced distortion

  • Selectable high-pass filters protect speakers

  • Class H complementary bipolar output circuitry reduces AC power draw and waste heat

  • 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

  • 25, 70, 100 volt, and low-impedance outputs available simultaneously

  • Simple barrier strip connection determines output mode

Availability: Ships in 2-4 days

RRP: £1438.56

Our Price: £1,198.80


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Product Description


Designed as a cost-effective solution specifically for sound contractors, the ISA Series includes seven models with 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).

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.

Additional Information

Additional Information

Manufacturer QSC
Item Condition New
Output power (20 Hz-20kHz THD+N=01%) 4ohms 2 x 650W
Output power (20 Hz-20kHz THD+N=01%) 8ohms 2 x 450W
Output power (20 Hz-20kHz THD+N=01%) 4ohms bridged 2400W
Output power (20 Hz-20kHz THD+N=01%) 8ohms bridged 1500W
Output power (20 Hz-20kHz THD+N=01%) 2ohms 2 x 1200W
Output power (20-20k Hz, THD<0, 2%) 100v 2 x 800W
Application Fixed Install
Rack Ears Yes
Input sensitivity Att. Max @ 8ohms 1.07v (+3.4 dBu)
Amplifier type 100V
Output channels 2
Input connectors XLR, Phoenix
Output connectors Barrier strip
Dimensions (W x H x D) 3U x 400mm
Weight (Kg) 26Kg
Distortion (THD full rated power 8 ohms) <0.02%
Market Sector Place of Worship, Education, A/V Corporate, Commercial


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