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JBL MA704, 4 Channel Full Range Marine Amplifier - 280W

SKU: JBL-MA704 UPC: 050036346320
Out of stock
Regular price $359.95
Regular price Sale $429.95 Sale price $359.95
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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.

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

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

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

JBL power and performance at an affordable price point

Cosmetic Appeal

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

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

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

Big Dynamic Power

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

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Weather Resistance Conformal-Coated

Number of Channels

4

Class

D

Peak Power Rating (Watts)


RMS Power Rating (Watts x Channels) - 4 Ohms

70 x 4

RMS Power Rating (Watts x Channels) - 2 Ohms

100 x 4
Bridged RMS Power Rating (Watts x Channels) 200 x 2
Minimum Impedance Unbridged (Ohms)

2

Minimum Impedance Bridged (Ohms)

4

THD at Rated RMS Power

1.0%

Bulit-in Crossover - Low Pass
Yes
Built-in Crossover - High Pass
Yes
High Pass Crossover Frequency (Hz)

32-320Hz

Low Pass Crossover Frequency (Hz)
32-320Hz
Signal-to-Noise Ratio
85dB
Bass Boost

Bass Remote Included


Fuse Rating 60A
CEA-2006 Compliant Yes
Maximum Power Wire Gauge Size 4 Gauge
Warranty 1 Year
Weather Resistance Conformal-Coated

Number of Channels

4

Class

D

Peak Power Rating (Watts)


RMS Power Rating (Watts x Channels) - 4 Ohms

70 x 4

RMS Power Rating (Watts x Channels) - 2 Ohms

100 x 4
Bridged RMS Power Rating (Watts x Channels) 200 x 2
Minimum Impedance Unbridged (Ohms)

2

Minimum Impedance Bridged (Ohms)

4

THD at Rated RMS Power

1.0%

Bulit-in Crossover - Low Pass
Yes
Built-in Crossover - High Pass
Yes
High Pass Crossover Frequency (Hz)

32-320Hz

Low Pass Crossover Frequency (Hz)
32-320Hz
Signal-to-Noise Ratio
85dB
Bass Boost

Bass Remote Included


Fuse Rating 60A
CEA-2006 Compliant Yes
Maximum Power Wire Gauge Size 4 Gauge
Warranty 1 Year

WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to