QSC ISA-280 Commercial Power Amplifier ISA280 QSC ISA-280 Commercial Power Amplifier ISA280
QSC ISA-280 Commercial Power Amplifier ISA280
QSC ISA-280 Commercial Power Amplifier ISA280

QSC ISA-280 Commercial Power Amplifier ISA280

$794.00
Brand: QSCReviews
Available to order. Usually ships in 1–3 business days.
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QSC 280 Overview

The ISA-280 Commercial Power Amplifier from QSC is a 3-RU rackmount power amplifier designed specifically for sound contractors. It can be used as a low-impedance solution rated for 2-Ohm operation at 430W per side, or 8-Ohm operation at 185W per side. The versatile loading options, feature set, and protection circuitry, in addition to the built-in HD-15 DataPort V2 DSP interface capability, ensures a high-value, cost-effective solution for budget-minded installations.

The ISA-280 is housed in a rugged all-metal chassis that features rear-panel gain controls for tamper-resistant operation and 2 dB detents for quick and repeatable settings. The inputs include both XLR and detachable Euro-style connectors, and the outputs feature covered barrier-strip connectors for full safety agency compliance.

  • High-output stereo power amplifier for low-impedance contractor installation applications
  • Rear-panel gain controls for tamper-resistant operation with 2 dB detents for quick and repeatable settings
  • DataPort V2 HD-15 connector for use with DPV2-compatible external signal processing accessories
  • Full short-circuit, open-circuit, thermal, ultrasonic, and RF protection
  • Independent defeatable clip limiters for reduced distortion, selectable 30 Hz or 70 Hz high-pass filters protect speakers and prevent speaker transformer saturation
  • Front panel indicators include power, signal, and clip; Stereo, Bridge and Parallel operating modes
  • Automatic variable-speed fan for quiet normal operation with maximum cooling; rear-to-front air flow
  • XLR and detachable Euro style input connectors, covered barrier-strip output connectors with full safety agency compliance
Performance
Protections
Reactive/Mismatched Load
Frequency Response
20 Hz to 20 kHz ±1 dB
Damping Factor
> 200 at 8 Ohms
Input Sensitivity
1.15 Vrms
Input Impedance
20 Kilohms (Balanced)
10 Kilohms (Unbalanced)
Max Gain
30.5 dB
SNR
100 dB
THD
4 / 8 Ohms:
< 0.03% (Full Range, at Rated Power -10 dB)
Connectivity
Analog Audio I/O
2 x Barrier Strip Output (Covered)
2 x XLR 3-Pin Balanced Input
2 x Block 3-Pin Input (Detachable)
Digital I/O
1 x DE-15/DB-15 DataPort 2.0 Input
Power
Current Consumption
0.5 A (Idle)
8 Ohms:
3 A (1/8 Power)
2 Ohms:
6.5 A (1/8 Power)
Physical
Display & Indicators
2 x Red LED (Clip)
2 x Green LED (Signal)
1 x Green LED (Power)
Cooling
Fan (Variable Speed)
Dimensions
5.2 x 19.0 x 15.9" / 133.0 x 483.0 x 400.0 mm
Weight
36 lb / 16.3 kg
Packaging Info
Package Weight
44.5 lb
Box Dimensions (LxWxH)
24 x 22 x 8.5"

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QSC warranty

This product is covered by the manufacturer's warranty. We help you with the claim from start to finish.

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Setup questions, compatibility, firmware: chat with a specialist or email info@silarius.com, Monday to Friday, 8am to 4pm ET.

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Business accounts

Approved businesses can pay on Net 30 / PO terms after their second completed order.

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