800-795-5111
 

Other products by QSC
(Tech Support Website)

View Accessories

Item #: ISA800TI
MSRP: $1,640.00
Login


QSC ISA800Ti Power Amplifier 2 Channel 450 Watts per CH 8 Ohms Stereo Amp w 70 Volt Transformer

FEATURES

  • Low-impedance outputs plus isolated 25, 70, and 100 volt outputs for distributed audio systems
  • Rear panel gain controls for tamper resistance; 2-dB detents allow 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 (50 Hz or 75 Hz) protect speakers and prevent speaker transformer saturation, with minimal effect on program material
  • Two-tier Class H complementary bipolar output circuitry reduces AC power draw and waste heat by 40%
  • Front panel indicators include power, signal, and clip
  • Covered barrier strip output connectors for safety agency compliance
  • Automatic on-demand variable-speed fan: quiet normal operation, with maximum cooling when needed
  • Rear-to-front air flow helps keep 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

 

SPECIFICATIONS ISA280 ISA450 ISA750 ISA1350 ISA300Ti ISA500Ti ISA800Ti
  STEREO MODE, Both Channels Driven
8 ohms 20 Hz–20 kHz 0.1% THD 185 W 260 W 450 W 800 W 185 W 260 W 450 W
4 ohms 20 Hz–20 kHz 0.1% THD 280 W 425 W 650 W 1300 W 280 W 425 W 650 W
2 ohms 1 kHz 1% THD 430 W 700 W 1200 W 2000 W 430 W 700 W 1200 W
  DIRECT POWER, STEREO MODE
70V 20 Hz–20 kHz +0/-0.3 dB 0.5% THD - - - 1500 W - - -
  TRANSFORMER-ISOLATED OUTPUT POWER, STEREO MODE
70V or 100V 50 Hz–16 kHz 0.5% THD - - - - 300 W 500 W 800 W
25V 50 Hz–16 kHz 0.5% THD - - - - 200 W 300 W 500 W
  BRIDGED MONO MODE
8 ohms 1 kHz 0.1% THD 600 W 900 W 1500 W 2800 W 600 W 900 W 1500 W
4 ohms 1 kHz 1% THD 830 W 1400 W 2400 W 4000W  830 W 1400 W 2400 W
  XF OUTPUT POWER, BRIDGED MONO MODE
140V or 200V 50 Hz-16 kHz 0.5% THD - - - - 600W 1000W 1600W
Signal to Noise (20 Hz-20 kHz) 100 dB 100 dB 100 dB 100 dB 100 dB 100 dB 100 dB
Distortion (SMPTE-IM) Less than 0.01% Less than 0.01% Less than 0.02% Less than 0.01% Less than 0.01% Less than 0.01% Less than 0.02%
Input Sensitivity @ 8 ohms 1.15 V
(+3.4 dBu)
1.07 V
(+2.8 dBu)
1.07 V
(+2.8 dBu)
1.24 V
(+4.1 dBu)
1.15 V
(+3.4 dBu)
1.07 V
(+2.8 dBu)
1.07 V
(+2.8 dBu)
Maximum Voltage Gain

33.4×
(30.5 dB)
44.7×
(33 dB)
56.2×
(35 dB)
64.0×
(36.1 dB)
33.4×
(30.5 dB)
44.7×
(33 dB)
56.2×
(35 dB)
Output Circuitry Class AB Class AB Class H Class H, 3 Tier Class AB Class AB Class H
THX Approved - THX Approved THX Approved - - - -
Weight - Net

36 lb
(16.3 kg)
42 lb
(19 kg)
47 lb
(21.3 kg)
68 lb
(30.8 kg)
44 lb
(20.0 kg)
49 lb
(22.3 kg)
57 lb
(26 kg)
Weight - Shipping

42 lb
(19.1 kg)
48 lb
(22 kg)
53 lb
(24.0 kg)
77 lb
(34.4 kg)
50 lb
(22.7 kg)
55 lb
(25 kg)
63 lb
(28.6 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 280, 450, 750 and 1350: 
20 Hz–20 kHz, +0/-1 dB; -3 dB points: 5 Hz and 50 kHz
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 with 8Ω Load (direct outputs) Greater than 200; ISA 1350 greater than 250
Output Regulation (isolated outputs) Less than 1.5 dB
Input Impedance 10 kΩ unbalanced, 20 kΩ balanced
Input Clipping 10 V rms (+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"(13.3 cm) 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 or 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

 

 


Prop 65WARNING: This product contains chemicals including Styrene which is known to the state of California to cause cancer, and Bisphenol A (BPA), which is known to the state of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.


New Project

Print Project

PrintProject

Volutone