JBL Marine MA704

Multi-element high-performance, 4-channel amplifier

$379.95379.95 each
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Compact size

Compact size

JBL Marine amplifiers feature a slim chassis and a small footprint to allow for installation in tight spaces

High- and low-level inputs

High- and low-level inputs

Speaker-level and low-level inputs let JBL Marine amps integrate with just about any audio input.

Selectable Output and Variable Adjustment Crossovers

Selectable Output and Variable Adjustment Crossovers

JBL Marine amps feature selectable all-, high-, or low-pass crossovers with variable electronic frequency adjustment to allow for fine-tuning multiple system configurations.

Product Value

Product Value

JBL power and performance at an affordable price point

Cosmetic Appeal

Cosmetic Appeal

Product family look and feel to meet the needs of our JBL customers

Conformal-Coated PCB

Conformal-Coated PCB

JBL Marine amplifiers are engineered to withstand harsh marine conditions, with fully “marinized” circuit boards to ensure flawless power delivery, year after year

Variable Crossovers

Variable Crossovers

Onboard 12dB electronic crossovers, with selectable full-range, high-pass & low-pass switching, provide tuning options for systems of any size

Big Dynamic Power

Big Dynamic Power

Output power is perfectly matched to meet the needs for your JBL marine products

JBL Marine MA704 - White Matte - Multi-element high-performance, 4-channel amplifier - Hero

Specs & Downloads

Item# MA704

Product Description

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.

General Specifications

Max Power 1000W Peak
RMS Power Output @ 2Ω 100W x 4, <1% THD+N
RMS Power Output @ 4Ω 70W x 4, <1% THD+N
RMS Power Output, 4Ω Bridged 200W x 2, <1% THD+N
Signal-to-Noise Ratio >85dB (ref 1W output @ 4Ω)

What's in the box?

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

Documents & Downloads

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

Reviews and Q&A

Customer Reviews

Product Q&A


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