JBL Marine MA4505


Multi-element high-performance, 5-channel amplifier


Weather-resistant & high-performance marine amplifiers

New weather-resistant & high-performance JBL Marine amplifiers deliver impressive power from a compact chassis designed to withstand outdoor environments. Available with 4-channel and 5-channel outputs. JBL Marine amplifiers incorporate our latest amplifier topology that includes selectable all-, high-, or low-pass crossovers with variable electronic frequency adjustment for precision system tuning. Engineered for harsh marine conditions, with power and performance to meet the needs of any outdoor audio system, JBL Marine amplifiers are the perfect match for all of your JBL marine products.

Item# MA4505

General Specifications

Max Power 1800W Peak
RMS Power Output @ 2Ω (subwoofer) 500W x 1, <1% THD+N
RMS Power Output @ 4Ω (subwoofer) 320W x 1, <1% THD+N
RMS Power Output @ 2Ω (full-range) 65W x 4, <1% THD+N
RMS Power Output @ 4Ω (full-range) 45W x 4, <1% THD+N
RMS Power Output @ 4Ω Bridged (full-range) 130W x 2, <1% THD+N
Signal-to-Noise Ratio (sub) >80dB (ref 1W output @ 4Ω)
Signal-to-Noise Ratio (full-range) >80dB (ref 1W output @ 4Ω)
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Spec Sheet (English)

English 966 KB
  • 1 amplifier
  • Stainless steel mounting hardware
  • Rubber inserts
  • 4 High-level input adapters
  • 3 spare fuses
  • 2 2-color brand stickers
  • Quick start guide

Documents & Downloads

The latest owner's manuals, quick start guides, and documents.

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