Specification Sheet

Multi-element high-performance, 4- and 5-channel amplifiers
HARMAN International Industries, Incorporated
8500 Balboa Boulevard, Northridge, CA 91329 USA
www.jbl.com
© 2018 HARMAN International Industries, Incorporated. All rights reserved. JBL is a trademark of HARMAN
International Industries, Incorporated, registered in the United States and/or other countries. The Bluetooth
®
word
mark and logos are registered trademarks owned by Bluetooth
®
SIG, Inc. and any use of such marks by HARMAN
International Industries, Incorporated is under license. Other trademarks and trade names are those of their
respective owners. Features, specifications and appearance are subject to change without notice.
Technical specifications:
JBL Marine MA704
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:
100W x 2, <1% THD+N
Signal-to-Noise Ratio: >85dB
(ref 1W output @ 4Ω)
JBL Marine MA4505
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)
Features and Benefits
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.
What’s in the box:
JBL Marine MA704
1 x amplifier
High-level input wiring harness
2 spare fuses
2 2-color brand stickers
1 x Quick start guide
JBL Marine MA4505
1 x amplifier
High-level input wiring harness
2 spare fuses
2 2-color brand stickers
1 x Quick start guide
Marine Amplifiers