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QSC ISA 300Ti Power Amplifier
Description
Designed as a cost-effective solution specifically for sound
contractors, the ISA Series features seven models including 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).
Versatile loading options and a comprehensive feature set make the ISA
Series a rugged, cost-effective power solution for any permanently
installed sound system.
Unique among distributed sound power amplifiers, 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.
Selectable high-pass filters are included 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.
On the ISA 750 and ISA 800Ti, class H complementary bipolar output
circuitry increases system efficiency by reducing AC power draw and
waste heat by 40%. Cooling is accomplished via an automatic variable
speed fan, which pulls air from back to front.
Features:
- Four models for low-impedance applications
- ISA 1350 drives 70V lines directly with 1500 watts / channel
- 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 3-year extended service contract
SPECIFICATIONS - QSC ISA300Ti
STEREO MODE - both channels driven
- 8 ohms 20 Hz-20 kHz 0.1% THD - 185W
- 4 ohms 20 Hz-20 kHz 0.1% THD - 280W
- 2 ohms 1 kHz 1% THD - 430W
XF OUTPUT POWER, STEREO MODE
- 70V or 100V 50 Hz-16 kHz 0.5% THD - 300W
- 25V 50 Hz-16 kHz 0.5% THD - 200W
BRIDGE MONO MODE
- 8 ohms 1 kHz 0.1% THD - 600W
- 4 ohms 1 kHz 1% THD - 830W
XF OUTPUT POWER, BRIDGE MONO MODE
- 140V or 200V 50 Hz-16 kHz 0.5% THD - 600W
- Signal to Noise (20 Hz-20 kHz) - 100db
- Distortion (SMPTE-IM) - Less than 0.01%
- Input Sensitivity @ 8 ohms - 1.15v (+3.4 dBu)
- Voltage Gain @ 8 ohms - 33.4x (30.5 dB)
- Output Circuitry - Class AB
- Weight - Net - 44 lbs (20.0 kg)
- Weight - Shipping - 50 lbs (22.7 kg)
ALL ISA SERIES 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
- Frequency Response 10 dB below rated output power - ISA 280,
450, and 750 and 1350: 20 Hz20 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 Hz16 kHz, +0/-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
All of our
QSC products are listed at MAP (the lowest price that the merchandise
can legally be sold for). QSC does NOT honor any warranties
from customers who purchased their equipment from a dealer with prices
below MAP.
Regular Price: $899.99
Our Price: $489.00 (FREE shipping within the 48 states) |
