QSC - PLX1804 Specifications

PLX1804 Specifications

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.

SPECIFICATIONS	PLX1804
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

* CE versions may have up to 12% (0.5 dBw) less power due to special construction to meet EN-61000 AC harmonic limits

CURRENT CONSUMPTION		PLX1804
1/8 Power (pink noise)	8 ohms 4 ohms	5.7A/120V 9.4A / 120V
1/3 Power (pink noise)	8 ohms 4 ohms	10.4A/120V 16.5A / 120V
Full Power	8 ohms 4 ohms	20A/120V 32A / 120V
Notes		Long term, breaker-limited to 15A/120V

All Specification Subject to Change Without Notice.

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PLX2 SERIES AMPLIFIERS

DOCUMENTS

PLX2 Specifications (PDF 275K)
User Manual (PDF 4.7MB)

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PLX1804 Front Panel
PLX1804 Front Left View
PLX1804 Front Right View
PLX2 "04" Rear Panel
PLX2 "04" Rear Left View
PLX2 "04" Rear Right View
PLX2 "04" Models Stack
PLX2 Family Stack

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PLX2 04 Models

PLX2 "04" Models: PLX1104 and PLX1804