QSC PLX1802 Power Amplifier

The PLX2 series is a range of premium quality high-power amplifiers designed for the most demanding live performance uses. Built on the third generation of QSC PowerLight technology PLX2 amplifiers combine light weight superlative audio quality and proven QSC reliability.

The PLX1802 is an excellent choice for users who need to drive up to four loudspeakers from each amplifier channel (2 ohm loading), or when extremely high power bridge mono operation is required. The PLX1802 features built-in subwoofer processing, filter switches, and front panel indications of bridge mono status.

SPECIFICATIONS
STEREO MODE, both channels driven *
8 ohms
• FTC 20 Hz - 20 kHz 0.05% THD: 320 W
• EIA 1 kHz 0.1% THD: 330 W
4 ohms
• FTC 20 Hz - 20 kHz 0.05% THD: 525 W
• EIA 1 kHz 0.1% THD: 575 W
2 ohmsEIA 1 kHz 1% THD: 900 W
BRIDGE MONO MODE *
8 ohms
• 20 Hz-20 kHz 0.1% THD: 1100 W
• EIA 1 kHz 0.1% THD: 1200 W
4 ohms 1 kHz 1% THD: 1800 W

• Signal to Noise (20 Hz - 20 kHz): -107 dB
• Input Sensitivity @ 8 ohms: 1.28 Vrms
• Gain @ 8 ohms: 32 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 500
• Input Impedance:
20k ohms balanced
10k ohms unbalanced
• Input Clipping: 11 Vrms (+21 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® and Touch-proof binding posts
(Both channels available on Ch 1 NL4 connector)
• Rear Panel Switches Input Configuration:
Bridge/Stereo/Parallel
Clip Limiters each channel
Filters (per channel): Top 100 Hz HPF/Full/Sub 100 Hz
LPF & 33 Hz HPF/Full (infrasonic)
• 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
Parallel: Amber LED
Bridge Mono: Amber 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, 5 Hz
• DC fault: Power supply shutdown
• Ultrasonic: -3 dB, 85 kHz
• Short Circuit: Cutback
• Thermal: Muting at 90° C
• Over Current:
Active clip limiting
Power spply cutback
• High Line: Standard +15%, survive +25%
• Low Line: -33%
PHYSICAL
• Dimensions
Height: 3.5" (8.9 cm) 2 rack spaces
Width: 19" (48.3 cm)
Depth, Rack mounting surface to rear panel: 12.8" (32.6 cm)
Overall Depth: 14.875" (37.9 cm)
Weight 21 lbs. (9.5 kg) net
26 lbs. (11.8 kg) shipping
• Agency Approvals CCC, CB, CE, FCC, KETI, 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
• 1/8 Power (pink noise):
8 ohms: 5A/120V
4 ohms: 8.7A / 120V
2 ohms: 13A / 120V
• 1/3 Power (pink noise):
8 ohms: 7.7A/120V
4 ohms: 12.3A / 120V
2 ohms: 19.7A / 120V
• Full Power
8 ohms: 12.6A/120V
4 ohms: 21.3A / 120V
2 ohms: 33.2A / 120V
• Notes Long term, active-limited to 25A/120V