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QSC ISA 500Ti 500 Watt Power Amplifier

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Item#: ISA500TI
UPC: 684284045003
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About This Product

QSC ISA 500Ti 500 Watt Power Amplifier

This ISA500Ti 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.

ISA500Ti Features:

• Low-impedance and isolated 25, 70, and 100 volt outputs for distributed audio systems available simultaneously
• 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 (50 Hz or 75 Hz)
• 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
QSC ISA500Ti Specifications
SPECIFICATIONSISA500Ti
  STEREO MODE, Both Channels Driven
8 ohms 20 Hz-20 kHz 0.1% THD 260W
4 ohms 20 Hz-20 kHz 0.1% THD 425W
2 ohms 1 kHz 1% THD 700W
  DIRECT POWER, STEREO MODE
70V 20 Hz-20 kHz +0/-0.3 dB 0.5% THD -
  XF OUTPUT POWER, STEREO MODE
70V or 100V 50 Hz-16 kHz 0.5% THD 500W
25V 50 Hz-16 kHz 0.5% THD 300W
  BRIDGED MONO MODE
8 ohms 1 kHz 0.1% THD 900W
4 ohms 1 kHz 1% THD 1400W
  XF OUTPUT POWER, BRIDGED MONO MODE
140V or 200V 50 Hz-16 kHz 0.5% THD 1000W
Signal to Noise (20 Hz-20 kHz) 100 dB
Distortion (SMPTE-IM) Less than 0.01%
Input Sensitivity @ 8 ohms 1.07v
(+2.8 dBu)
Voltage Gain @ 8 ohms

44.7x
(33 dB)
Output Circuitry Class AB
THX Approved -
Weight - Net

49 lbs
(22.3 kg)
Weight - Shipping

55 lbs
(25 kg)
  ALL MODELS
Distortion (Typical)
  20 Hz-20 kHz: 10 dB below rated power
  1.0 kHz and below: full rated power
Less than 0.03% THD, 4 ohms and 8 ohms

Less than 0.03% THD, 4 ohms and 8 ohms
Frequency Response
10 dB below rated output power

ISA 300Ti, 500Ti and 800Ti: 
Direct outputs: -3 dB @ 50 Hz, -0.5 dB @ 20 kHz; XF outputs: 50 Hz-16 kHz, +1/-3 dB
Damping Factor (direct outputs) Greater than 200 at 8 ohms, ISA 1350 greater than 250
Output Regulation (isolated outputs) Less than 1.5 dB
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
Connectors, each channel Input: Active balanced; 3-pin Euro-style detachable terminal block and XLR (pin 2+)
Output: Covered barrier strips 
DataPort V2: HD-15 connector
Controls Front: AC switch
Rear: Ch. 1 and Ch. 2 gain knobs, 10-position DIP switch
Indicators PWR-ON: Green LED; SIGNAL: Green LED (1 per channel);
CLIP: Red LED (1 per channel)
Dimensions 19" (48.3 cm) rack mounting, 5.25"(13.3cm) tall (3 rack spaces), 
15.9" (40 cm) deep (from front mounting rails)
Amplifier Protection Full short circuit, open circuit, thermal, ultrasonic, and RF protection;
Stable into reactive or mismatched loads
Power Requirements 120, 230, VAC, 50-60 Hz
Load Protection On/off muting; Triac crowbar: ISA 750, 1350 and 800Ti; AC coupling: ISA 280, 300Ti, 450 and 500Ti
The ISA 500Ti Box Includes:
(1) QSC ISA500Ti 500 Watt Power Amplifier
(1) Power Cord
(1) User Manual