- Four models for low-impedance applications 

 

- Three "Ti" versions include low-impedance and isolated 25, 70, and 100 volt outputs for distributed audio systems 

 

- 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) 

 

- Class H complementary bipolar output circuitry reduces AC power draw and waste heat by 40% on ISA 750 and 800Ti, and by 50% on ISA 1350 

 

- 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