Marine Audio MA112 User manual

Installation and Operation Manual
MA11
2

WARNING AND COMPLIANCE
Important Safety Instructions
•To ensure full satisfaction with the product, please read the entire
instruction manual.
•Keep instructions for future reference.
•Follow all operation guidelines and adhere to all safety warnings and
cautions to ensure safe use.
•Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.
•Only use attachments/accessories specified by the manufacturer.
•Never use harsh cleaning agents. Clean only with a dry cloth.
When Operating Vessel
•Keep the volume level low enough to be aware of your surroundings.
Protect from Submersion
•Do not submerge, as this can cause electrical shorts, fire or other damage.
Protect from High Temperatures
•The space behind the chosen mounting location should allow room for the
radios heatsink to dissipate heat generated under normal use. Do not
mount the radio within close proximity of the engine compartment.
Use the Proper Power Supply
•This product is designed to operate with a 12 volt DC negative ground
battery system.
WARNING:
•DO NOT OPEN, DISASSEMBLE OR ALTER THE UNIT IN ANY WAY.
Doing so may result in fire, electric shock or product damage.
•USE THE CORRECT AMPERE RATING WHEN REPLACING FUSE.
Failure to do so may result in fire, electric shock or product damage.
•DO NOT INSTALL IN LOCATIONS THAT MIGHT HINDER VEHICLE
OPERATION. Doing so may obstruct vision or hamper movement which
can result in a serious accident.
•INSTALL THE WIRING SO THAT IT IS NOT CRIMPED OR PINCHED BY
SCREWS ORSHARP METAL EDGES. Route the cables away from
moving parts or sharp pointed edges. This will prevent crimping and
damage to the wiring. If the wiring must pass through a metal hole, be
sure to use a rubber grommet to prevent the wire's insulation from being
cut by the metal edge of the hole. It is also recommended to apply sealing
caulk to any opening that may potentially allow water to enter.
•Be sure to choose a location that is flat and has clearance above the unit to
prevent any damage, as well as allow for ventilation.
•Before drilling any holes, carefully inspect the area underneath and behind
the mounting surface where the device will be mounted to make sure it will
not interfere with existing wires, fuel lines, the fuel tank or any other objects
that could be damaged.
•Always disconnect the vehicle negative battery terminal during installation
to prevent accidental shorting.
Compliance with FCC Rules (U.S.A Only)
This device complies with Part 15 of the FCC rules. Operation is subjected to
the following two conditions: (1) This device may not cause harmful interference,
and (2) this device must accept any interference received, including interference
that may cause undesired operation.
NOTICE
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against Harmful interference in a
residential installation. This equipment generates uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful Interference to radio communications.
FCC WARNING
•Changes or modifications to this unit not expressly approved by the party
responsible for compliance could void the user’s authority to operate the
equipment.

INTRODUCTION
Thank You!
Thank for choosing a this product. We hope you will find the instructions in this
owner’s manual clear and easy to follow. If you take a few minutes to look
through it, you’ll learn how to use all the features of your new receiver for
maximum enjoyment.
Features
Features of the MA112 include:
•Dimmable LCD Backlit Control, TFT Display
•Waterproof iPx6
•Low Battery Alarm
•AM/FM Tuner (US/EURO) with 36 Presets (18 AM, 18 FM)
•Bluetooth (Supports A2DP and AVRCP)
•APP Ready
•Electronic Bass, Treble, Balance and Fader Controls
•Illumination Control (Day and Night)
•UV and Corrosion Resistant
•Rear Auxiliary Audio Input (RCA)
•Rear Auxiliary Audio Output (RCA)
•4-Channel Amplified Audio Output
Box Content
•MA112 Radio
•Radio Mounting Bracket
•Screw Posts (x2)
•Locking Hex Nuts (x2)
•Washers (x2)
•Quick Reference Guide
•Warranty Card
HARDWARE KIT CONTENTS

INSTALLATION
Important Notes
•Before you begin, always turn off the batteries at the battery switch. If no battery
switch is installed on the vessel, you can disconnect the negative terminal from
your battery.
•Before final installation, test the wiring connections to make sure the unit is
connected properly and the system works.
•Consult with your nearest dealer if installation requires the drilling of holes or other
modification to your vessel.
•Install the unit where it does not interfere with driving and cannot injure
passengers if there is a sudden or emergency stop.
Mounting the Radio
1. Choose a mounting location on the helm, in the glove box, or desired area of the
vessel that will allow room behind to run radio cables to the power source.
Consider how you will use the AUX IN, LINE OUT and USB connectors and route
the appropriate extension cables to an accessible area.
2. Refer to the dimensioned diagram on the right to cut the installation opening.
IMPORTANT! Do not mount this unit where it can be submerged in water.
3. Cut a hole in the chosen mounting location using the template provided in the back
of this manual. At least 4.5” depth is needed to mount the radio.
4. Slide the included spring washers (B) over the screw posts (A) and attach the
screw posts to the back of the radio.
5. Place the radio in front of the mounting opening so the wiring can be brought
through the opening.
NOTE: Before final installation, test the wiring connections to make sure
the unit is connected properly and the system works
6. After completing all wire connections, turn the radio on to confirm operation
(battery switch will need turned back on or negative cable will need to be attached
for this test). If the radio does not operate, recheck all wiring until the problem is
corrected. Once proper operation is achieved, turn the battery switch off or
disconnect the negative cable from the battery.
7. Insert the radio into the mountinghole and make sure it is right-side-up.
8. Place the “U” bracket (C) over the screw posts and secure the radio to the chosen
mounting position using the included hex nuts (D). If necessary, cut the score
marks (E) on either side of the mounting bracket to custom fit the bracket length
for your application. See Figure A.
Auxiliary Input
Connect a portable audio device to the Audio Input (AUX IN RIGHT/LEFT) on
the back of the unit using RCA cables.
Line Output
The Line Out connectors (LINE OUT RIGHT/LEFT) on the back of the unit
output a line-level analog signal. Use this output to connect to an external
amplifier.

Wiring Diagram
Note: Do not connect the red wire to a constant
power connection. The red wire should be
connected to a vehicle connection with switched
power such as IGN or ACC.

BASIC OPERATION
Power On/Off
Press the power button (1) to turn the unit on.
Press and hold the power button (1) to turn the unit off.
Volume Control
Rotate the VOL/ENTER knob (4) clockwise to increase or counter-clockwise to
decrease the volume.
Play/Pause/Mute
Press the button (7) to silence the audio output in Tuner, AUX or
Bluetooth mode. Press again to restore the previous volume level.
Mode
Press the button (1) to enter source menu. Rotate the VOL/ENTER knob
(4) to navigate through the available modes and press the VOL/ENTER knob
(4) select the desired mode. Available modes are AM, FM, Bluetooth and AUX
input.
Audio Settings
Press button (2) to access the audio settings. Rotate VOL/ENTER knob (4)
to navigate through the following menu setting items: Equalizer (TREBLE,
BASS), Loudness (ON/OFF), Balance & Fade and System Settings. Press
VOL/ENTER buttons (4) to select the item. The unit will automatically exit the
Audio Settings after seven seconds of inactivity.
The following Audio setting items can be adjusted.
Equalizer
TREBLE: Press VOL/ENTER button (4) to active the Treble control. Rotate
VOL/ENTER knob (4) to adjust the Treble level from “-7” to “+7”.
BASS: Press VOL/ENTER button (4) to active the Bass control. Rotate
VOL/ENTER knob (4) to adjust the Bass level from “-7” to “+7”.
Loudness
Press the VOL/ENTER button (4) to toggle loudness on/off/ when listening to
music at low volumes, this feature will boost the bass and treble ranges.
Balance & Fade
BALANCE: Press VOL/ENTER knob button (4) to active the Balance control.
Rotate VOL/ENTER knob (4) to adjust the Balance level from “L7” to “R7”.
FADE: Press VOL/ENTER knob button (4) to active the Fade control. Rotate
the VOL/ENTER knob (4) to adjust the Fade level from “R7” to “F7”.

System Settings
Press VOL/ENTER knob button (4) to enter the system settings. Rotate the
VOL/ENTER button (4) to navigate through the following menu setting items:
Bluetooth, Illumination, Contrast, Low Voltage Alert, Tuning Region, System
Info, System Reset and Audio Settings. Press the VOL/ENTER buttons (4) to
select the item. The unit will automatically exit the Audio Settings after seven
seconds of inactivity.
The following System Setting items can be adjusted.
BLUETOOTH
Pair Device: Press the Enter button to pair a device.
Paired Device: View, lock and delete from a list of previously paired mobile
device models.
ILLUMINATION
Press the VOL/ENTER encoder button (4) to cycle through DAY, NIGHT or
AUTO mode.
Day Mode
Display: Adjust the display brightness.
Buttons: Adjust the buttons brightness.
Press VOL/ENTER knob button (4) to active the brightness control, then rotate
VOL/ENTER knob (4) clockwise or counter-clockwise to adjust desire
brightness from level “1” to “10” for day mode.
Night Mode
Display: Adjust the display brightness.
Buttons: Adjust the buttons brightness.
Press VOL/ENTER knob button (4) to active the brightness control, then rotate
VOL/ENTER knob (4) clockwise or counter-clockwise to adjust desire
brightness from level “1” to “10” for night mode.
Auto Mode
Automatically switches illumination from Day mode to Night mode when
illumination trigger lead is energized +12VDC.
CONTRAST
Rotate the VOL/ENTER knob (4) clockwise or counter-clockwise to adjust
desire display contrast.
LOW VOLTAGE ALERT
Press VOL/ENTER knob button (4) to turn the low voltage alert on or off. When
low voltage alert turn on, it will monitor input voltage on ACC line. When the
battery voltage is low (drops below 10.5V (+/-0.3V), the audible beep tone will
sound interval from speaker and the display will flash LOW VOLTAGE on the
bottom of the display.
TUNING REGION
Rotate the VOL/ENTER knob (4) to select the tuner region frequency step:
North America or Europe, press VOL/ENTER button (4) to confirm selection.
SYSTEM INFO
Press the VOL/ENTER button (4) to view software version information.
SYSTEM RESET
Press the VOL/ENTER button (4) to enter system reset menu. Rotate the
VOL/ENTER knob (4) to select “Confirm” and press VOL/ENTER button (4) to
confirm factory default restore. This function will time out after 5 seconds of
inactivity and the unit will resume normal operation. After reset, the unit will
default to FM mode.
AUDIO SETTINGS
Press VOL/ENTER button (4) to enter Audio Settings menu.
Back Key
Press button (3) to return previous settings menu
Auxiliary Input
Connect the portable audio device to the AUX IN cable routed from the rear of
the radio. Press the button (1) to enter the source menu. Then rotate the
VOL/ENTER knob (4) to select Auxiliary mode and press VOL/ENTER button
(4) to enter Auxiliary playback mode.

Save Presets
Rotate VOL/ENTER knob (4) to select desired location, press and hold
VOL/ENTER button (4) to save current station in the selected desired Preset
Stations.
Delete Presets
Rotate VOL/ENTER knob (4) to select the location, press and hold button
(5) to delete the station saved in the location.
Recall Presets
Rotate VOL/ENTER knob (4) to navigate through the memorized preset
stations, press VOL/ENTER button (4) to confirm selection and playback the
preset frequency.
Auto save Presets / Scan Presets
Press the menu button (6) to enter radio menu, then rotate the VOL/ENTER
knob (4) to navigate through following menu items: AUTOSAVE PRESETS and
SCAN PRESETS.
Scan Presets
Rotate VOL/ENTER knob (4) to select Scan Presets, press VOL/ENTER
button (4) to scan stations stored in current band. The unit will play for ten
seconds at each preset station. Press button (7) to stop scanning when the
desired station is reached.
AutoSave Presets
Rotate VOL/ENTER knob (4) to select AutoSave Presets, press VOL/ENTER
button (4) to confirm selection. The screen will display “Autosaving Presets…”
while the unit scanning the frequency. The unit will automatically scan for and
store 18 strongest stations for AM or FM.
NOTE: Only stations detected with sufficient signal strength will be
stored in the preset channels automatically.
TUNER OPERATION
Disclaimer: Antenna selection will impact reception.
Select a Band
Press the button (1) to enter source menu. Then rotate the VOL/ENTER
knob (4) to select AM/FM radio mode and press VOL/ENTER button (4) to
confirm entering AM or FM radio mode.
Manual Tuning
Press and hole the or buttons (3, 5) to enter manual tune mode, press
or buttons (3, 5) again to seek stations up/down step by step.
Auto Seek Tuning
Press the or buttons (3, 5) to automatically seek the next or previous
strong station.
Preset Station
Press and hold the VOL/ENTER button (4) to enter Preset Station menu.

CONNECT/DISCONNECT: To disconnect a paired device, press the
VOL/ENTER button (4) to temporarily remove the Bluetooth connection. The
connection can be re-established trough your phone menu by selection the
MA112 for connection or select the phone device name on pairing list through
the radio unit and press VOL/ENTER button (4) select CONNECT for
connection.
LOCK/UNLOCK: The MA112 can store up to 5 devices for Bluetooth
connection. The devices are stored in a FIFO (First In First Out) order. To
prevent a device from being bumped from the list when more than 5 devices
are used, you can lock the device. To Lock/Unlock a device, press the
VOL/ENTER button (4) to change between Lock/Unlock.
DELETE: Deleting a device removes it from the paired devices list. To delete a
device from the list, press the VOL/ENTER button (4). To reconnect with a
deleted device it must be paired again.
BLUETOOTH OPERATION
The MA112 includes built-in Bluetooth technology that allows you to connect
this unit to Bluetooth devices for streaming audio playback.
About Bluetooth Technology
Bluetooth is a short-range wireless radio connectivity technology. Operating in
the 2.4 GHz frequency range, it transmits voice and data at speeds up to 2.1
Mbit/s over a range of up to 10 meters.
Bluetooth Menu Option
NOTE: Please note that some Bluetooth menu options are only available
while the unit is in Bluetooth Audio mode.
Press the button (1) to enter the source menu. Then rotate the
VOL/ENTER knob (4) to select Bluetooth mode and press VOL/ENTER button
(4) to confirm entering Bluetooth playback mode.
Press button (6) to enter Bluetooth menu. Press VOL/ENTER button to
enter Bluetooth Settings. Then rotate the VOL/ENTER knob (4) to select
Paired Devices and press VOL/ENTER button to view list of previously paired
mobile devices model.
Paired Devices List
Rotate the VOL/ENTER knob (4) to navigate through the Paired Devices list
and press VOL/ENTER button (4) to enter Bluetooth Paired Device menu.
Then rotate the VOL/ENTER knob (4) to navigate through following menu
items: Connect/Disconnect, Lock/Unlock, and Delete.

Bluetooth Audio (A2DP)
Selecting Tracks
During playback, press or buttons (3, 5) to play the previous or next
track.
Pausing Playback
During playback, press button (7) to pause the Bluetooth audio playback.
“PAUSE” will appear on the LCD. Press button (7) again to resume
playback. If you change to another mode, playback will automatically pause.
Press the button (1) to enter the source menu. Then rotate the
VOL/ENTER knob (4) to select Bluetooth mode and press VOL/ENTER button
(4) to return to Bluetooth mode and resume audio playback from your
Bluetooth enabled device.
NOTE: If a Bluetooth device is disconnected due to the power being
turned off or if the device goes out of range, the unit will automatically
search for the matching Bluetooth mobile device when the power is
restored.
Pairing a Bluetooth Device
The screen will display “No Device Connected” if the unit is not connected with
a mobile device through Bluetooth. Press VOL/ENTER button (4) to connect
the unit with the last connected Bluetooth device.
Press and hold VOL/ENTER button (4) to enter Bluetooth quick pair. The
screen will display message “Verify Bluetooth is active on device and select:
“MA112”” and will be available to pair for 2 minutes.
While the unit counts from time -2:00 use your mobile device Bluetooth
function to search for a Bluetooth device. The mobile device will display the
Bluetooth device name (MA112). Select MA112. Once connected the
Bluetooth Audio icon will light up on the display.
After connecting successfully, you will be able to listen to audio stored on your
Bluetooth enabled device through the radio.
Answering a Call
When answering a call using the connected phone, Bluetooth audio playback
will pause. After hanging up from the call, Bluetooth audio will continue on
some phones. It may be necessary to press the button (7) to resume
Bluetooth audio playback.

CARE AND MAINTENANCE
•Keep the product away from dust and dirt, which can cause premature
wear of parts.
•Handle the product gently and carefully. Dropping it can damage circuit
boards and cases, and can cause the product to work improperly.
•Wipe the product with a dampened cloth occasionally to keep it looking
new. Do not use harsh chemicals, cleaning solvents, or strong detergents
to clean the product.
•Use and store the product only in normal temperature environments. High
temperature can shorten the life of electronic devices, damage batteries
and distort or melt plastic parts.
Ignition
The most common source of noise in reception is the ignition system. This is a
result of the radio being placed close to the ignition system (engine). This type
of noise can be easily detected because it will vary in intensity of pitch with the
speed of the engine.
Usually, the ignition noise can be suppressed considerably by using a radio
suppression type high voltage ignition wire and suppressor resistor in the
ignition system. (Most vessels employ this wire and resistor but it may be
necessary to check them for correct operation). Another method of suppression
is the use of additional noise suppressors. These can be obtained from most
CB/A radio or electronic supply shops.
Interference
Radio reception in a moving environment is very different from reception in a
stationary environment (home). It is very important to understand the
difference.
AM reception will deteriorate when passing under a bridge or when passing
under high voltage lines. Although AM is subject to environmental noise, it has
the ability to be received at great distance. This is because broadcasting
signals follow the curvature of the earth and are reflected back by the upper
atmosphere.
APP OPERATION
MARINE Audio app (no longer supported beginning in 2021)
ASA Audio app (available Fall 2020)
MARINE Audio Specialty Controller is the ultimate wireless remote control for
your stereo system. Store away your old remotes and enjoy the convenience of
all the primary functions of your stereo right from your phone or tablet by
transforming your mobile device into a functional stereo remote control!
Features
This app controls all of the primary functions of your stereo features including:
•Power on/off
•Mode Selection
•Volume control
•Play/Pause or Mute
•AM/FM radio tuner: seek.
•Bluetooth streaming audio
•Audio menu control: Bass, Treble, Balance, Fader, and Loudness on/off.
Connecting and using App from App Store
After downloading and installing the app on your device, pair your device to the
MA112 as stated above for Bluetooth paring. Once your device is paired you
can open the app and use with your MA112 radio.
When the app is installed on Android operating system, you may need to close
the app before Bluetooth pairing, otherwise there may be errors on Bluetooth
connection.

SPECIFICATIONS
FM Tuner
Tuning Range (USA)...............................................................87.5 to 107.9 MHz
Tuning Range (Europe)...........................................................87.5 to 108.0 MHz
Sensitivity.....................................................................................................<5μV
Stereo Separation…………........................................................................>30dB
AM Tuner
Tuning Range (USA).................................................................530 to 1710 KHz
Tuning Range (Europe).............................................................522 to 1620 KHz
Sensitivity...................................................................................................<63μV
Amplifier
Output Power...................................................................15 Watts x 4 Channels
Speaker Impedance………………………………….…4-8 Ω (ohms) per channel
General
Frequency band(s) (for Bluetooth)..............................................2.4~2.4835GHz
Maximum radio frequency power transmitted (for Bluetooth)...................10 dBm
Power Supply Requirements................................DC 12 Volts, Negative Ground
Operating Voltage...............................................................................10-16V DC
Fuse Rating...............................................................................15 Ampere (Max)
Chassis Dimensions…...........................................4.51" Diameter, 4.67"Deep
Mounting Dimensions..................................................3.866" Wide, 4.465" Deep
Weight.........................................................................................................1.39lb
.
Specifications are subject to change without prior notice.
TROUBLESHOOTING
Problem
Solution
No power
If the power supply is properly connected to
the vessel’s accessory terminal. but the
engine is not on, switch the ignition key to
"ACC"
Fuse may be blown. Replace with 15 AMP
ATP fuse.
No AM/FM reception
Antenna cable not connected; insert antenna
cable firmly
Check Power; make sure device is on.
No Sound
Check volume level; increase volume if
necessary.
Check Power; make sure device is on.
Check device; press the play/pause button to
ensure unit is not in Pause mode.
Check the Bluetooth source device volume
settings; increase as needed.
Ensure Bluetooth source device is still
connected
Cannot tune to radio
station, auto-seek does
not work
Check Power; make sure device is on.
Select a station manually, if signals are too
weak.
Check condition of antenna coax. Ensure it is
not being pinched or shorted. Note: antenna
mounting location, type of antenna,
environmental conditions, and physical
proximity of the tuner with relationship to the
transmitting tower all play a role in the ability
to tune in a specific radio station.
Cannot connect or pair
a Bluetooth Device
Check the radio to ensure not connecting to
any Bluetooth devices. Refer to page 8 for
disconnect the Bluetooth device.
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