- QSC Professional Audio Amplifiers Audio User Manual PLX 1104, PLX 1804, PLX 1802, PLX 2502, PLX 3102, PLX 3602

Specifications PLX 1104, PLX 1804

PLX 1104 PLX 1804

OUTPUT POWER (Watts)

(1)

20 - 20k Hz, 0.05% THD, 8 ohms/Ch. 310 550

1k Hz, 0.1% THD (EIA), 8 ohms/Ch. 325 600

20 - 20k Hz, 0.05% THD, 4 ohms/Ch. 500 800

1k Hz, 0.1% THD (EIA), 4 ohms/Ch. 550 900

DISTORTION, SMPTE-IM 0.02% 0.02%

FREQUENCY RESPONSE 20 - 20k Hz, ±0.5 dB, all models

SIGNAL to NOISE, unweighted, 20 - 20k Hz -108 dB -106 dB

VOLTAGE GAIN 32.5 dB 34.9 dB

INPUT SENSITIVITY, Vrms

for rated power into 8 ohms 1.18 (+3.7 dBu) 1.20 (+3.8 dBu)

OUTPUT CIRCUIT TYPE AB AB/H

INPUT IMPEDANCE 10k ohms unbalanced, 20k ohms balanced

DYNAMIC HEADROOM 2 dB at 4 ohms

DAMPING FACTOR (8 ohms) >200

AMPLIFIER PROTECTION Short circuit, open circuit, thermal, ultrasonic and RF protection. Stable into reactive or mismatched loads

COOLING Continuously variable speed fan; back-to-front air flow through heat sink array

CONTROLS Front: AC POWER switch, Gain controls (each channel) 21 detents

Back: AC circuit breaker

LED INDICATORS POWER (blue), SIGNAL (green x 2), -10 dB (green x 2), CLIP (red x 2)

CONNECTORS Input: 1/4-inch TRS and female XLR; 20k ohm balanced, 10k ohm unbalanced

Output: Speakon connectors: Ch 1, 4-wires (Ch 1 + Ch 2); Ch 2, 2-wires (Ch 2 only)

LOAD PROTECTION Turn-on/turn-off muting, DC fault blocking, Clip limiting, Infrasonic filter (-3 dB at 5 Hz)

POWER REQUIREMENTS Refer to rear panel serial number label. Configured at factory for 100, 120 or 220-240 VAC, 50- 60 Hz.

DIMENSIONS 19.0" (48.3 cm) W, 3.5" (8.9 cm) H, 10.1" (25.7 cm) D (from front mounting rails, including rear support

ears)

WEIGHT

(1)

13 pounds (5.9 kg) net; 18 pounds (8.2 kg) shipping

(1) NOTE: Due to special construction to meet EN-6100, CE models may have 5-12% (0.5 dBw) less power and 1.2 lb (0.6 kg) more weight.

U.S. patent no. 5767744 and patents pending

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE