DISC QSC PLX1804 900W Professional Power Amplifier

Full Description

Guaranteed Great Sound

Designed to power one or two speakers from each amplifier channel (4 ohm minimum loading), the compact "04" models bring the same performance and technology, plus even greater value to applications that don't require bridged or 2 ohm operation. Precision bias tracking makes minute adjustments as the amplifier temperature changes, resulting in cleaner high-frequency and more consistant sound no matter how hard the amplifier is driven.

Stylish Looks with Rugged Reliability

QSC have used years of experience and attention to detail to design mechanical touches such as the side stiffening rails, rear rack ears and cable tie anchor points, as well as integrated front handles so the amplifier slides into a rack without scraping the installers fingers on the rack sides. Enjoy on-the-road reliability with the solid, cast-aluminium front panel that adds professional style to any rack. PLX2 series amplifiers have the refined, rugged good looks usually associated with high performance racing cars, competition bikes, professional power tools, and high power machinery.

Features

• Very light weight ("02" models, 21 lb/9.5 kg, "04" models 13 lb/5.9 kg)
• Cooling design exhausts hot air out the front, keeping the rack cool. Flow-through heat sinks require no filters that could become clogged
• Front panel LED power, clip, -10 dB, and signal present indicators for system monitoring and troubleshooting. 02 models also feature bridge and parallel mode LED indicators
• Two Speakon® NL4 output connectors provide positive-locking speaker connections. Upper connector provides both channel outputs on all four poles (Channel 1: 1+, 1-; channel 2: 2+, 2-) for bridged mono or for single-cable connection to bi-amplified speakers
• 21-position front-panel gain controls for precise, repeatable amplifier adjustment
• Balanced XLR inputs with parallel TRS connectors accommodate all common input connectors and support loop-through operation
• Patented PowerLight power supply technology with other patents pending
• Value combined with uncompromised PLX technology, quality and performance for applications that don't require bridged or 2-ohm stereo operation
• Two models with power ratings up to 900 watts per channel @ 4 ohms
• Clip limiting protects speakers; thermal limiting maintains operation even during abnormal overloads

Specifications

Rated Power per Channel, Stereo Mode (both channels driven)*

• 8Ω FTC 20 Hz-20 kHz 0.05 THD: 550 W
• 8Ω EIA 1 kHz 0.1 THD: 600 W
• 4Ω FTC 20 Hz-20 kHz 0.05 THD: 800 W
• 4Ω EIA 1 kHz 0.1 THD: 900 W

Rated Power, Bridge-Mono Mode*

• Signal to Noise (20 Hz-20 kHz): - 106 dB
• Input Sensitivity at 8Ω: 1.20 V rms
• Maximum Voltage Gain: 35 dB
• Output Circuitry: 2-tier Class H
• Power Requirements (1/8 power, pink noise at 4Ω): 9.4 A/120V

General Specifications

• Distortion (SMPTE-IM): < 0.02
• Distortion (typical):
  • 1/8 rated power, 20 Hz-20 kHz: < 0.02
  • Full rated power, 20 Hz-20 kHz: < 0.02

• Damping Factor (8Ω): > 200
• Input Impedance: 10 kΩ unbalanced / 20 kΩ balanced
• Input Clipping: 5.5 V rms (+15 dBu)
• Cooling: Variable-speed fan, rear-to-front air flow
• Input Connectors, each channel: 3-pin XLR and 1/4" TRS balanced, parallel
• Output Connectors, each channel: Two Neutrik NL4 Speakon®. Both channels available on upper NL4 connector
• 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
• Dimensions: Height 3.5" (8.9 cm); 2 RU / Width 19" (48.3 cm)
• Depth: Rack mounting surface to rear: 8.95" (22.7 cm) / Overall 11" (27.9 cm)
• Weight - Shipping / Net: 18 lb (8.2 kg) / 13 lb (5.9 kg)
• Agency Approvals: CE, FCC, cUL, UL