JBL Marine Amplifier

The JBL Marine Series amplifiers deliver reliable, high-performance power for marine audio systems in a compact, weather-resistant design. Compatible with both aftermarket and factory source units, they feature adjustable crossover controls, balanced differential inputs for reduced noise, and built-in protection circuitry for dependable operation on the water.

Features:

• Compact low-profile chassis fits installations with limited mounting space
• Variable crossover controls allow precise system tuning
• Input level control supports both speaker-level and preamp-level inputs
• Compatible with aftermarket and factory marine audio systems
• Balanced differential inputs help minimize engine noise and signal interference
• Selectable turn-on mode supports remote turn-on or DC offset detection
• Integrated protection against short circuits, overheating, overvoltage, and undervoltage

Specifications:

• Model A754, 4-Channel:
  • Amplifier Type: Class H
  • Channels: 4
  • Power Output @ 4 ohm: 75W RMS x 4
  • Power Output @ 2 ohm: 100W RMS x 4
  • Bridged Power Output @ 4 ohm: 200W RMS x 2
  • Crossover: Variable high-pass and low-pass, 32 - 320 Hz, 12 dB/octave
  • Preamp Outputs: Yes
  • Line-Level Input Sensitivity: 200 mV RMS - 4V RMS
  • Speaker-Level Input Sensitivity: 1 - 22V RMS
  • Signal-to-Noise Ratio: >80 dB
  • Total Harmonic Distortion: <1%
  • Fuse Rating: 30A x 2
  • Recommended Power/Ground Wire: 8 AWG
  • Dimensions (W x H x D): 12 5/8" x 2 1/16" x 7 1/8" (320 x 51.3 x 180 mm)
• Model A5055, 5-Channel:
  • Amplifier Type: Class A/B + Class D
  • Channels: 5
  • Power Output @ 4 ohm: 50W RMS x 4 + 320W RMS x 1
  • Power Output @ 2 ohm: 75W RMS x 4 + 500W RMS x 1
  • Bridged Power Output @ 4 ohm: 150W RMS x 2 + 500W RMS x 1
  • Front/Rear Crossover: Variable high-pass and low-pass, 32 - 320 Hz, 12 dB/octave
  • Subwoofer Crossover: Variable low-pass, 32 - 320 Hz, 12 dB/octave
  • Bass Boost: 0 - 12 dB @ 45 Hz
  • Subwoofer Phase: 0 deg./ 180 deg.
  • Remote Bass Controller: Included
  • Line-Level Input Sensitivity: 200 mV RMS - 4V RMS
  • Speaker-Level Input Sensitivity: 1 - 22V RMS
  • Signal-to-Noise Ratio: >80 dB
  • Total Harmonic Distortion: <1%
  • Fuse Rating: 30A x 3
  • Recommended Power/Ground Wire: 4 AWG
  • Dimensions (W x H x D): 14 3/16" x 2 1/16" x 7 1/8" (360 x 51.3 x 180 mm)

Owner's Manual (9.90 MB)

Specification Sheet