QSC PLX 1804, Power Amplifier - 2 x 900W

The compact PLX1804 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" PLX1804 is perfect for ultra-portable rigs, as well as reference-quality playback.

Stereo Mode 8 ohms (each channel) *   FTC 20 Hz - 20 kHz 0.05% THD   EIA 1 kHz 0.1% THD	550 W 600 W
Stereo Mode 4 ohms (each channel) *   FTC 20 Hz - 20 kHz 0.05% THD   EIA 1 kHz 0.1% THD	800 W 900 W
Signal to Noise (20 Hz - 20 kHz)	-106 dB
Input Sensitivity @ 8 ohms	1.20 Vrms
Gain @ 8 ohms	35 dB
Output Circuitry	2-Tier Class H
Distortion (SMPTE-IM)	Less than 0.02%
Typical Distortion   1/8 rated power, 20 Hz-20 kHz   Full rated power, 20 Hz-20 kHz	Less than 0.02% 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 Gain Attenuator: 0 to ∞ 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, 6 Hz
DC fault	Power supply shutdown
Ultrasonic	-3 dB, 80 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%
PHYSICAL
Dimensions   Height   Width   Depth, Rack mounting surface to rear panel   Overall Depth	3.5" (8.9 cm) 2 rack spaces 19" (48.3 cm) 8.95" (22.7 cm) 11" (27.9 cm)
Weight	13 lbs. (5.9 kg) net 18 lbs. (8.2 kg) shipping
Agency Approvals	CE, FCC, cUL, UL

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