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. With power ratings up to 3,600 watts, PLX2 amplifiers are capable of providing plenty of clean, undistorted output to the most power hungry speaker systems.
The PLX2502 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 PLX2502 features built-in subwoofer processing, filter switches, and front panel indications of bridge mono status.
Features:
• Very light weight (21 lbs/9.5 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.
• Speakon® NL-4 output connectors provide a positive-locking speaker connection. Ch 1 output uses all 4 wires 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.
• Speakon® NL4 and binding post outputs.
• 100 Hz high pass and low pass filters for bi-amping subwoofer and satellite systems without the need for an external crossover.
• Switchable/defeatable 33 Hz infrasonic filters protect woofers from over-excursion damage.
• Switchable/defeatable clip limiters.
Power Rating:
Stereo:
• 450 Watts (8 ohms 1 kHz, 0.1% THD, both channels driven)
• 750 Watts (4 ohms 1 kHz, 0.1% THD, both channels driven)
• 1250 Watts (2 ohms 1 kHz, 1% THD, both channels driven)
Mono Bridged:
• 1500 Watts (8 ohms 1 kHz, 0.1% THD, both channels driven)
• 2500 Watts (4 ohms 1 kHz, 1% THD, both channels driven)
Specifications:
STEREO MODE, both channels driven*
• 8 ohms:
FTC 20 Hz - 20 kHz 0.05% THD: 425 W
EIA 1 kHz 0.1% THD: 450 W
• 4 ohms:
FTC 20 Hz - 20 kHz 0.05% THD: 675 W
EIA 1 kHz 0.1% THD: 750 W
• 2 ohms EIA 1 kHz 1% THD: 1250 W
BRIDGE MONO MODE *
• 8 ohms:
20 Hz-20 kHz 0.1% THD: 1400 W
EIA 1 kHz 0.1% THD: 1500 W
• 4 ohms 1 kHz 1% THD 2500 W
• Signal to Noise (20 Hz - 20 kHz): -106 dB
• Input Sensitivity @ 8 ohms: 1.15 Vrms
• Gain @ 8 ohms: 34 dB
• Output Circuitry: 2-Tier Class H
• 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 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
Parallel: Amber LED
Bridge Mono: Amber LED
• 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 supply cutback
• High Line: Standard +15%, survive +25%
• Low Line: -33%
• Dimensions
Height: 3.5" (8.9 cm) 2 rack spaces
Width: 19" (48.3 cm)
Depth, Rack mounting surface to rear panel
Overall Depth: 12.8" (32.6 cm), 14.875" (37.9 cm)
• Weight:
21 lbs. (9.5 kg) net
26 lbs. (11.8 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
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