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QSC PLX 1104

550w Per Channel @ 4 ohms Power Amplifier

Product Code 40897

Retail Price
$929
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$749.99
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Manufacturer
QSC

The compact PLX1104 brings the same performance and technology as the rest of the PLX2 Series, plus even greater value, to applications that don't require bridged or 2 ohm operation. Designed to power one or two speakers from each amplifier channel (4 ohm minimum loading), this model offer a simplified feature set while retaining genuine, uncompromised PLX performance and technology. Weighing just 13 pounds (5.9 kg), the "plug-and-play" PLX1104 is perfect for ultra-portable rigs, as well as reference-quality playback.



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MPN: PLX1104

Power:
325 watts stereo at 8 ohms
550 watts stereo at 4 ohms

Stereo Mode 8 ohms (each channel)
- FTC 20 Hz - 20 kHz 0.05% THD: 310 W
- EIA 1 kHz 0.1% THD: 325 W

Stereo Mode 4 ohms (each channel)
- FTC 20 Hz - 20 kHz 0.05% THD: 500 W
- EIA 1 kHz 0.1% THD 550 W

Signal to Noise (20 Hz - 20 kHz): -106 dB
Input Sensitivity @ 8 ohms: 1.18 Vrms
Gain @ 8 ohms: 32.5 dB
Output Circuitry: AB
Distortion (SMPTE-IM): Less than 0.02%

Typical Distortion
- 1/8 rated power, 20 Hz-20 kHz: Less than 0.02%
- Full rated power, 20 Hz-20 kHz: Less than 0.02%

Frequency Response: 20 Hz-20 kHz, -0.5 dB
Damping Factor: Greater than 200

Input Impedance
- 20k ohms balanced
- 10k ohms unbalanced

Input Clipping: 5.5 Vrms (+15 dBu)
Cooling: Variable-speed fan, rear-to-front air flow
Input Connectors, each channel: 3-pin XLR and 1/4" TRS balanced
Output Connectors, each channel: Neutrik NL4 Speakon (Both channels available on Ch 1 output)

Rear Panel Switches
- Circuit Breaker

Front Panel Controls
- Detented Input Attenuator: 0 to 8 dB
- Power On/Off

Front Panel Indicators
- Clip: Red LED
- -10: Green LED
- Signal (-35 dB): Green LED
- Power: Blue LED

PROTECTION
- Amplifier Protection: Full short circuit, open circuit, thermal, infrasonic, ultrasonic, and RF protection
- Stable into reactive or mismatched loads

Load Protection: On/off muting, DC-fault power supply shutdown
Infrasonic: -3 dB, 8 Hz
DC fault: Power supply shutdown
Ultrasonic: -3 dB, 120 kHz
Short Circuit: Muting
Thermal: Limiting at 85° C, Muting at 90° C

Over Current
- Active clip limiting
- AC circuit breaker

High Line: Standard +15%, survive +25%
Low Line: -40%

Dimensions
- Height: 3.5" (8.9 cm) 2 rack spaces
- Width: 19" (48.3 cm)
- Depth, Rack mounting surface to rear panel: 8.95" (22.7 cm)
- Overall Depth: 11" (27.9 cm)

- 3-year warranty plus optional 3-year extension available


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