PLX1104 (Discontinued)

Low-Z Power Amplifier

Discontinuation Notice: The PLX1104 power amplifier has been discontinued. The direct replacement is the GX3. Please contact your local Sales Rep for more details.

Providing 325 watts per channel into 8 ohms and 550 watts per channel into 4 ohms in a short chassis, with a lightweight PowerLight power supply, the PLX1104 is ideal for the most demanding live sound applications.


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.
  • 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 overexcursion damage.

  • Switchable/defeatable clip limiters.

  • Four models with power ratings up to 1800 watts per channel @ 2 ohms, 3600 watts bridged @ 4 ohms

  • 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.


  PLX1104 (discont'd) PLX1804 (discont'd) PLX1802 PLX2502 PLX3102 PLX3602
Rated Power per Channel, Stereo Mode (both channels driven)*
8Ω FTC 20 Hz–20 kHz 0.05% THD 310 W 550 W 320 W 425 W 550 W 725 W
8Ω EIA 1 kHz 0.1% THD 325 W 600 W 330 W 450 W 600 W 775 W
4Ω FTC 20 Hz–20 kHz 0.05% THD 500 W 800 W 525 W 675 W 900 W 1100 W
4Ω EIA 1 kHz 0.1% THD 550 W 900 W 575 W 750 W 1000 W 1250 W
2Ω EIA 1 kHz 1% THD 900 W 1250 W 1550 W 1800 W
Rated Power, Bridge-Mono Mode*
8Ω20 Hz–20 kHz 0.1% THD 1100 W 1400 W 1900 W 2500 W
8Ω EIA 1 kHz 0.1% THD 1200 W 1500 W 2100 W 2600 W
4Ω EIA 1 kHz 1% THD 1800 W 2500 W 3100 W 3600 W
Signal to Noise (20 Hz–20 kHz) -106 dB -106 dB -107 dB -106 dB -107 dB -107 dB
Input Sensitivity at 8Ω 1.18 V rms 1.20 V rms 1.28 V rms 1.15 V rms 1.23 V rms 1.25 V rms
Maximum Voltage Gain 32.5 dB 35 dB 32 dB 34 dB 35 dB 36 dB
Output Circuitry Class AB 2-tier Class H Class AB 2-tier Class H 2-tier Class H 2-tier Class H
Power Requirements (1/8 power, pink noise at 4Ω) 8 A /120V 9.4 A /120V 8.7 A /120V 7.5 A /120V 9.5 A /120V 11.5 A /120V

 

Series-wide specifications
  04 MODELS (Discontinued) 02 MODELS
Distortion (SMPTE-IM) < 0.02% < 0.02%
Distortion (typical) - -
1/8 rated power, 20 Hz–20 kHz < 0.02% < 0.02%
Full rated power, 20 Hz–20 kHz < 0.02% < 0.02%
Damping Factor (8Ω) > 200 > 500
Input Impedance 10 kΩ unbalanced / 20 kΩ balanced 10 kΩ unbalanced / 20 kΩ balanced
Input Clipping 5.5 V rms (+15 dBu) 11 V rms (+21 dBu)
Cooling Variable-speed fan, rear-to-front air flow Variable-speed fan, rear-to-front air flow
Input Connectors, each channel 3-pin XLR and 1/4" TRS balanced, parallel 3-pin XLR and 1/4" TRS balanced, parallel
Output Connectors, each channel Two Neutrik NL4 Speakon®
Both channels available on upper NL4 connector
Two Neutrik NL4 Speakon® and four touch-proof binding posts
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
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 On/off muting, DC-fault power supply shutdown
Dimensions
Height
Width

3.5" (8.9 cm); 2 RU
19" (48.3 cm)

3.5" (8.9 cm); 2 RU
19" (48.3 cm)
Depth
—Rack mounting surface to rear
—Overall
8.95" (22.7 cm)
11" (27.9 cm)
12.8" (32.6 cm)
14.875" (37.9 cm)
Weight—Shipping / Net 18 lb (8.2 kg) / 13 lb (5.9 kg) 26 lb (11.8 kg) / 21 lb (9.5 kg)
Agency Approvals CE, FCC, cUL, UL CE, FCC, cUL, UL

 

Specifications are subject to change without notice.