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QSC ISA300Ti
Installation Power Amplifier with 25V, 70V, 100V and Low Impedance Outputs

OUR PART #  ISA300TI

Our Price: $629.99
List Price: $789.99
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The QSC ISA300Ti is a power amplifier that features 25V, 70V, 100V and low impedance outputs and is designed for installation-based distributed audio systems. The ISA300Ti drives 70 volt lines directly with 300 Watts per channel.

Versatile loading options and a comprehensive set of features make the ISA300Ti a rugged, cost-effective power solution for any permanently installed sound system.

QSC ISA300Ti Features:

  • Includes 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 (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
  • Fully isolated 25, 70, 100 volt and low impedance outputs available simultaneously
  • Simple barrier strip connection determines output mode

QSC ISA300Ti Specifications:

  • Power Ratings:
    • Stereo Mode (both channels driven):
      • 8 Ohms, 20 Hz - 20 kHz, 0.1% THD: 185 Watts
      • 4 Ohms, 20 Hz - 20 kHz, 0.1% THD: 280 Watts
      • 2 Ohms, 1 kHz, 1% THD: 430 Watts
    • XF Output Power, Stereo Mode:
      • 70V or 100V, 50 Hz - 16 kHz, 0.5% THD: 300 Watts
      • 25V, 50 Hz - 16 kHz, 0.5% THD: 200 Watts
    • Bridge Mono Mode:
      • 8 Ohms, 1 kHz, 0.1% THD: 600 Watts
      • 4 Ohms, 1 kHz, 1% THD: 830 Watts
    • XF Output Power, Bridge Mono Mode 140V or 200V, 50 Hz - 16 kHz, 0.5% THD: 600 Watts
  • Signal-to-Noise Ratio: 100 dB
  • Distortion (SMPTE-IM): < 0.01%
  • Input Sensitivity at 8 Ohms: 1.15V (+3.4 dBU)
  • Gain at 8 Ohms: 33.4x (30.5 dB)
  • Output Circuitry: AB
  • Distortion (typical):
    • 20 Hz - 20 kHz, 10 dB below rated power: < 0.03% THD, 4 Ohms and 8 Ohms
    • 1.0 kHz and below, full rated power: < 0.03% THD, 4 Ohms and 8 Ohms
  • Frequency Response (10 dB below rated output power): -3 dB at 50 Hz, -0.5 dB at 20 kHz; XF Outputs: 50 Hz - 16 kHz,+0/-3 dB
  • Output Regulation (isolated outputs): < 1.5dB
  • Input Impedance: 10 kOhms unbalanced, 20 kOhms balanced
  • Input Clipping: 10 Vrms (+22 dBu)
  • Cooling: Continuously variable speed fan,back-to-front air flow
  • Connectors:
    • Input: Active balanced, 3-pin Euro style detachable terminal block and XLR (pin 2+)
    • Output: Covered barrier strips, DataPort V2 / HD-15connector
  • Controls:
    • Front: AC Switch
    • Rear: Ch 1 & 2 gain knobs / 10-position DIP switch
  • Indicators:
    • Power On: Green LED
    • Signal: Green LED (1 per channel)
    • Clip: Red LED (1 per channel)
  • Load Protection: On/Off muting
  • Dimensions (HxWxD): 5.25" (3RU) x 19" x 15.9" (13.3cm x 48.3cm x 40cm)
  • Weight: 44 lbs (20.0 kg)
  • Power Requirements: 100, 120, 230 VAC, 50 - 60 Hz
Digital Signal Processing Module for QSC AmplifiersQSC DSP4 Digital Signal Processing Module for QSC Amplifiers

With more than three decades of experience pioneering cutting edge audio products, QSC raises the bar once again with the DSP-4 Digital Signal Processing Module. This compact module offers two channels of independent DSP and attaches to ...

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Need it sooner? Call us!

Free Shipping Available

Our Price:$730.00

Crossover Module/CX1102QSC XC-3 Crossover Module/CX1102

The XC-3 is an active two-way crossover for use with bi-amplified loudspeakers. The unit mounts to the rear panel of a two-channel DCA, CX, or ISA amplifiers to save cost and rack space. The amplifier's DataPort provides the accessory's ...

Usually ships in 7-14 business days.
Need it sooner? Call us!

Free Shipping Available

Our Price:$230.00

Remote Rack Mounting Bracket for DSP-3 & DSP-4QSC DPX4 Remote Rack Mounting Bracket for DSP-3 & DSP-4

The DPX-4 allows remote rack mounting of QSC DataPort-compatible accessory modules such as the DSP-3 and DSP-4 digital signal processors. The bracket allows accessory modules to be used in a standalone configuration with QSC four-channel, ...

Usually ships in 7-14 business days.
Need it sooner? Call us!

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Our Price:$90.00

Power Supply for DSP3 QSC DPX1 Power Supply for DSP3

This external power supply is used for the DSP-3 Digital Signal Processor under special circumstances.When a DSP-3 is mounted out-board with a DPX-4 Rack Mount Bracket, or directly on an amplifier where external voltage is necessary, this ...

Usually ships in 7-14 business days.
Need it sooner? Call us!

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Our Price:$60.00

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QSC ISA300Ti
Installation Power Amplifier with 25V, 70V, 100V and Low Impedance Outputs

OUR PART #  ISA300TI

Product Information:

The QSC ISA300Ti is a power amplifier that features 25V, 70V, 100V and low impedance outputs and is designed for installation-based distributed audio systems. The ISA300Ti drives 70 volt lines directly with 300 Watts per channel.

Versatile loading options and a comprehensive set of features make the ISA300Ti a rugged, cost-effective power solution for any permanently installed sound system.

QSC ISA300Ti Features:

  • Includes 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 (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
  • Fully isolated 25, 70, 100 volt and low impedance outputs available simultaneously
  • Simple barrier strip connection determines output mode

QSC ISA300Ti Specifications:

  • Power Ratings:
    • Stereo Mode (both channels driven):
      • 8 Ohms, 20 Hz - 20 kHz, 0.1% THD: 185 Watts
      • 4 Ohms, 20 Hz - 20 kHz, 0.1% THD: 280 Watts
      • 2 Ohms, 1 kHz, 1% THD: 430 Watts
    • XF Output Power, Stereo Mode:
      • 70V or 100V, 50 Hz - 16 kHz, 0.5% THD: 300 Watts
      • 25V, 50 Hz - 16 kHz, 0.5% THD: 200 Watts
    • Bridge Mono Mode:
      • 8 Ohms, 1 kHz, 0.1% THD: 600 Watts
      • 4 Ohms, 1 kHz, 1% THD: 830 Watts
    • XF Output Power, Bridge Mono Mode 140V or 200V, 50 Hz - 16 kHz, 0.5% THD: 600 Watts
  • Signal-to-Noise Ratio: 100 dB
  • Distortion (SMPTE-IM): < 0.01%
  • Input Sensitivity at 8 Ohms: 1.15V (+3.4 dBU)
  • Gain at 8 Ohms: 33.4x (30.5 dB)
  • Output Circuitry: AB
  • Distortion (typical):
    • 20 Hz - 20 kHz, 10 dB below rated power: < 0.03% THD, 4 Ohms and 8 Ohms
    • 1.0 kHz and below, full rated power: < 0.03% THD, 4 Ohms and 8 Ohms
  • Frequency Response (10 dB below rated output power): -3 dB at 50 Hz, -0.5 dB at 20 kHz; XF Outputs: 50 Hz - 16 kHz,+0/-3 dB
  • Output Regulation (isolated outputs): < 1.5dB
  • Input Impedance: 10 kOhms unbalanced, 20 kOhms balanced
  • Input Clipping: 10 Vrms (+22 dBu)
  • Cooling: Continuously variable speed fan,back-to-front air flow
  • Connectors:
    • Input: Active balanced, 3-pin Euro style detachable terminal block and XLR (pin 2+)
    • Output: Covered barrier strips, DataPort V2 / HD-15connector
  • Controls:
    • Front: AC Switch
    • Rear: Ch 1 & 2 gain knobs / 10-position DIP switch
  • Indicators:
    • Power On: Green LED
    • Signal: Green LED (1 per channel)
    • Clip: Red LED (1 per channel)
  • Load Protection: On/Off muting
  • Dimensions (HxWxD): 5.25" (3RU) x 19" x 15.9" (13.3cm x 48.3cm x 40cm)
  • Weight: 44 lbs (20.0 kg)
  • Power Requirements: 100, 120, 230 VAC, 50 - 60 Hz
Digital Signal Processing Module for QSC AmplifiersQSC DSP4 Digital Signal Processing Module for QSC Amplifiers

With more than three decades of experience pioneering cutting edge audio products, QSC raises the bar once again with the DSP-4 Digital Signal Processing Module. This compact module offers two channels of independent DSP and attaches to ...

Usually ships in 7-14 business days.
Need it sooner? Call us!

Free Shipping Available

Our Price:$730.00

Crossover Module/CX1102QSC XC-3 Crossover Module/CX1102

The XC-3 is an active two-way crossover for use with bi-amplified loudspeakers. The unit mounts to the rear panel of a two-channel DCA, CX, or ISA amplifiers to save cost and rack space. The amplifier's DataPort provides the accessory's ...

Usually ships in 7-14 business days.
Need it sooner? Call us!

Free Shipping Available

Our Price:$230.00

Remote Rack Mounting Bracket for DSP-3 & DSP-4QSC DPX4 Remote Rack Mounting Bracket for DSP-3 & DSP-4

The DPX-4 allows remote rack mounting of QSC DataPort-compatible accessory modules such as the DSP-3 and DSP-4 digital signal processors. The bracket allows accessory modules to be used in a standalone configuration with QSC four-channel, ...

Usually ships in 7-14 business days.
Need it sooner? Call us!

Free Shipping Available

Our Price:$90.00

Power Supply for DSP3 QSC DPX1 Power Supply for DSP3

This external power supply is used for the DSP-3 Digital Signal Processor under special circumstances.When a DSP-3 is mounted out-board with a DPX-4 Rack Mount Bracket, or directly on an amplifier where external voltage is necessary, this ...

Usually ships in 7-14 business days.
Need it sooner? Call us!

Free Shipping Available

Our Price:$60.00

Click to download

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