‌The PLX3102 is a premium quality, high-power amplifier designed for the most demanding live performance uses. Built on the third generation of QSC power light technology, the plx3102 combines light weight, superlative audio quality and proven QSC reliability. With a power rating up to 3100 watts, the plx3102 is capable of providing plenty of clean, undistorted output to the most power hungry speaker systems. The plx3102 is the right 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. This model features built-in subwoofer processing, filter switches, and front panel indications of bridge mono status. He audio power circuitry in the plx3102 achieves performance normally associated with studio reference amplifiers. In order to reduce crossover distortion, precision bias tracking makes minute adjustments as amplifier temperature changes. The benefit is cleaner high-frequency and more consistent sound no matter how hard the amplifier is driven. The higher power models use QSC-exclusive class h output circuitry, a form of audio "turbocharging" that increases maximum power without affecting the basic audio quality.

Main 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
  

Specs

Power Rating:

Rating @ 1 kHz, THD=0.1%

1000W @ 4Ω Stereo (per channel)

600W @ 8Ω Stereo (per channel)

1550W @ 2Ω Stereo (per channel)

2100W @ 8Ω Bridged-Mono

3100W @ 4Ω Bridged-Mono

Rating @ 20 Hz - 20 kHz, THD=0.05%

900W @ 4Ω Stereo (per channel)

550W @ 8Ω Stereo (per channel)

1900W @ 8Ω Bridged-Mono

Damping Factor: 

>500

Input Sensitivity: 

1.23 Vrms @8 Ohms

Input Impedance: 

20 kOhms, balanced

10 kOhms, unbalanced

Gain:

35dB (@8 Ohms)

Frequency Response:

20 Hz - 20 kHz, -0.5dB

Signal-to-Noise Ratio:

-107dB (20 Hz - 20 kHz)

Total Harmonic Distortion (THD):

<0.02%, 20 Hz - 20 kHz

Input Connections: 

2 x XLR female, balanced

2 x 1/4" TRS phone, balanced

Output Connectors:

 2 x pair 5-way binding posts

2 x NL-4 Speakon

Controls Front Panel:

 2 x rotary Level Control knobs

1 x Power switch

Controls (Rear):

1 x Bridge/Stereo/Parallel Input Config. Switch

1 x Clip/Limiter

2 x Top 100 Hz HPF/Full/Sub 100 Hz LPF Filter switches

2 x 33 Hz HPF/Full (infrasonic) Filter switches

Indicators:

2 x Ch.1,2 red Clip LEDs

2 x Ch.1,2 green -10dB LEDs

2 x Ch.1,2 green -35dB signal LEDs

1 x blue Power LED

1 x amber Parallel LED

1 x amber Bridge Mono LED

Cooling: 

1 x variable-speed fan (back-to-front airflow)

Power Consumption:

1/8 power (pink noise)

@8 Ohms: 6A/120V

@4 Ohms: 9.5A/120V

@2 Ohms: 14A/120V

1/3 power (pink noise)

@8 Ohms: 10.7A/120V

@4 Ohms: 16.5A/120V

@2 Ohms: 27A/120V

Full Power:

@8 Ohms: 21A/120V

@4 Ohms: 33A/120V

@2 Ohms: 55A/120V

Power Requirements:

100, 120 or 220-240 VAC, 50- 60 Hz

Dimensions:

19 x 3.5 x 14.9" (483 x 89 x 379mm); 2U

Weight:

21 lbs (9.5 kg)

Specialties:

Detented Level Attenuators

Comprehensive Protection Circuitry

On/Off Muting, DC-fault Power Supply Shutdown