

Features
Compact size
The JBL marine A5055 amplifier features a low-profile chassis and a small overall footprint to fit in more vehicles where available space is limited.
High and low level input
Speaker-level and low-level inputs allow the marine A5055 to integrate with both aftermarket and factory marine stereo systems.
Variable crossover and bass boost
Unlike many amplifiers available at similar prices, the JBL marine A5055 features variable electronic crossovers and bass boost circuits allowing for precise system tuning and performance.
Low noise and distortion
The marine A5055 has been engineered using Balanced Differential Inputs to ensure low noise and distortion even at high output levels. This also makes it far less susceptible to line induced radiated engine noise.
Input Level Control
When low-level inputs are used, this control adjusts the input sensitivity between 200mVrms and 4Vrms. When high-level inputs are used, this control adjusts the input sensitivity between 1Vrms and 22Vrms.
Full on-board protection
On-board circuitry protects the marine A5055 from shorts, high-temperature, overvoltage and undervoltage. An LED indicator is provided to let you know when one of these conditions exists.
Phase Switch
This switch changes the input phase to inverted or non-inverted. This is especially helpful with the subwoofer channel.
RBC wired remote
The RBC wired remote is an easy installation and can be mounted for convenient volume adjustment from driver's seat.
Class AB+D amp technology
The JBL marine A5055 5channels subwoofer amplifier delivers 760-Watts RMS using a Class AB+D amplifier design to ensure high output and minimum current draw.
Turn-on mode
This switch changes DC to REM to adapt with low-level signals or high-level signals, this is especially helpful as part of remote turn-on lead of your installation more choice .A selectable "Turn-on mode" can protect battery to avoid current drain, when you don't expect turn on your amplifier.
Specs & Downloads
Item#: JBLMA5055AM
EAN: 1200130003103
General Specifications
- 5 channel marine amplifier
- 50 watts RMS x 4 + 320 watts RMS x 1 at 4 ohms
- 75 watts RMS x 4 + 500 watts RMS x 1 at 2 ohms
- 100 watts RMS x 2 bridged at 4 ohms + 500 watts RMS x 1 at 2 ohms
- variable high- and low-pass filters (32-320 Hz, 12 dB/octave) on front and rear channels
- low-pass filter (32-320 Hz, 12 dB/octave) on subwoofer channel
- bass boost on subwoofer channel (0-12dB at 45Hz)
- phase switch on subwoofer channel (0, 180 degrees)
- preamp and speaker-level inputs
- fuse rating
- 30A x 3
- 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
- WxHxD=360mm x 51.3mm x 180mm WxHxD=14-3/16” x 2-1/16" x7-1/8”
- One marine A5055 five channel amplifier
- 4 Bare wire-to-RCA adapters
- Six 30A ATO fuses (3 installed, 3 spare)
- Remote bass control module
- 16.5' Remote control cable (RJ-25 plugs on both ends)
- 2 Self-tapping screws for remote (M3 x 15mm)
- 4 Mounting screws (M4 x 53mm)
- Owner's Manual
- Two JBL stickers
- 1 logo badage
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