EAN: 684284003874
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
QSC 280 Specs
| Number of Channels | 2 |
| Power Rating | 2 Ohms: 430 W per Channel 8 Ohms: 185 W per Channel 600 W Bridged |
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" |
In the Box
- QSC ISA-280 Commercial Power Amplifier
- AC Power Cord
- 4 x Rubber Feet
- Rear Rackmount Kit
- 2 x 3-Pin Terminal Block Connectors
- 3-Year Manufacturer Warranty
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