AMC Music Box D12 User manual

IMPORTANT SAFETY INSTRUCTIONS
When using this electronic device, basic precautions should always be taken, including the
following:
1. Read all instructions before using the product.
2. Do not use this product near water (e.g., near a bathtub, washbowl, kitchen sink, in a wet
basement or near a swimming pool etc).
3. se this device when you are sure that the loudspeaker has a stable base and it is fixed securely.
4. This product may be capable of producing sound levels that could cause permanent hearing
loss. Do not operate for a long period of time at a high volume level or at a level that is
uncomfortable. If you experience any hearing loss or ringing in the ears, you should consult
with otorhinolaryngologists. The product should be positioned so that proper ventilation is
maintained.
5. The product should be located away from heat sources such as radiators, heat vents, or other
devices (including amplifiers) that produce heat.
6. The product should be connected to a power supply that is described in the operating
instructions or are marked on the product. Replace the fuse only with one of the specified
type, size and correct rating.
7. The power supply cord should be undamaged and never share an outlet or extension cord
with other devices so that the outlet or extension cord's power rating is exceeded. Never leave
device plugged be left plugged in to the outlet when it’s not being used for a long period of
time.
8. Care should be taken so that objects do not fall into, and liquids would not be spilled
through, the enclosure's openings.
9. The product should be serviced by qualified service personnel if:
•The power supply cord or the plug has been damaged.
•Objects have fallen into or liquid has been spilled on the product.
•The product has been exposed to rain.
•The product has been dropped or the enclosure damaged.
All the other servicing should be referred to qualified service personnel.

CONTENTS:
Before you start
What's in the box 4
Features 4
Hints on installation 4
Controls and connections
Rear panel 5
Player 6
Remote control 6
Specifications
Specifications 7

What’s in the box?
Items those are included in the box:
•Music Box D12 active loudspeaker
•IR remote control
•Instruction manual
•Power cable
Features
•Integrated USB, SD/MMC player.
•IR remote control
•Switching power supply and Class
D amplifier.
•Balanced microphone and line
inputs. Tone control.
•12” woofer and 1.5” tweeter.
Passive two way crossover.
•Power and clip indications.
•Pole socket for use with speaker
stands.
•Light cabinet with hanging holes.
Hints on Installation
This user manual contains an important information on operating Music Box D12 active
loudspeaker correctly and safety. Please read it carefully before operating your loudspeaker.
INSPECTION
Your Music Box D12 was carefully packed at the factory and packaging is designed to protect
the units in shipment. Before installing and using your unit, carefully examine the packaging
and all contents for any signs of physical damage. If you find any damage, notify the shipping
company immediately. Be sure to save the carton and all packing materials for carrier
inspection.
MOUNTING
The Music Box D12 is designed to use with speaker stands as well as stand alone. There are
several mounting holes in plastic cabinet for the easy and safety rigging. Because of the cabinet
design loudspeaker can by use as floor monitor too. Pay attention to the safety requirements
when loudspeaker is rigging or using with speaker stand. Unconcern of safety requirements
may cause a falling down and serious injury.
LOUDSPEAKERS COOLING
Also pay attention to the cooling requirements. Never block the rear panel of the loudspeaker.
Do not install the loudspeaker in a location that is exposed to direct rays of the sun or near the
hot appliance or radiators.
Congratulations on your choice of purchasing the active loudspeaker Music Box D12. You will
find that your Music box D12 has a superior performance and greater flexibility than any other
active loudspeakers in it’s price range. Please read this manual carefully to get the most important
information about your new unit. Thanks for selecting Music Box D12.

Rear Panel
1. MICROPHONE INPUT CONNECTOR
Balanced XLR connector in parallel with
6.3mm Jack. This input is suitable for
dynamic microphones.
2. LINE INPUT CONNECTOR
Balanced XLR connector in parallel with
stereo RCA. This input is suitable for line
level audio.
3. LINE OUT
Balanced XLR output in parallel with
6.3mm Jack. The signal in these outputs
are collected from microphone and line
inputs.
4. MIC VOLUME
Volume control of microphone input.
5. LINE VOLUME
Volume control of line’s input.
6. MASTER
Master volume control for adjust the
general sound level.
7. TREBLE
This control allows adjusting sound tone
of both microphone and line inputs and
music player. Adjusting level ± 15dB,
frequency - 12 kHz.
8. BASS
This control allows adjusting sound tone
of both microphone and line inputs and
music player.. Adjusting level ± 15dB,
frequency - 80 Hz.
9. LIMIT
This LED indicates when the sound
distortions occur in the amplifier.
Occasional blinking of the LEDs are
acceptable, but if they remain constantly
you should reduce the output level to
avoid audible distortion
10. SIGNAL
This LED indicates when audio signal
appear in the power amplifier.
11. POWER
This LED indicates if loudspeaker is
turned on.

12. VOLTAGE SELECTOR
Slide voltage selector to the left or right,
for selecting necessary voltage.
Voltages level is marked on the selector.
Before selecting voltage, make sure that
loudspeaker is disconnected from the
main power.
13. POWER SWITCH
Press the button for turning on/off.
Please make sure that all loudspeakers
volume controls are set to min
positions, before turning on.
14. FUSE HOLDER
se T2AL 250V fuse only. Contact
with qualified service personnel if
fuse blows up constantly.
15. PLAYER VOLUME CONTROL
Volume control of the player. Please
note: Total music player’s volume
depends from player's volume
control potentiometers, form
volume control buttons on the
player and master potentiometers.
Player
1. POWER AND PLAY/PAUSE
BUTTONS
By pressing POWER key, the unit is
switched on or off. PLAY/PA SE key
starts playing and change player’s
mode between play and pause.
2. VOLUME CONTROL
Volume control of the player. Please
note: Total music player’s volume
depends from player's volume
control potentiometers, form
volume control buttons on the
player and master potentiometers.
3. USB slot
Slot for SB flash drive.
4. IR receiver
Receives the commands from
remote control.
5. REPEAT AND EQ BUTTONS
There are available two modes of
repeat, ONE REPEAT and ALL
REPEAT. Press repeat key, to set
repeat mode.
Press key to change EQ mode
cyclically.
NORMAL → JAZZ → ROCK → POP →
CLASS
6. NEXT AND PREVIOUS BUTTONS
Single press of this button changes
the track to next or previous track,
according to which button, NEXT or
PREVIO S, was pressed.
7. SD/MMC SLOT
Slot for SD or MMC card.
Remote control
All music player’s functions can be controlled by IR remote control.
Because of the IR receiver’s location, IR remote control should be
directed to the rear panel in order to guarantee a reliable remote control
operation.

Specifications
Power supply ~ 115/230V, 60/50 Hz
Output power 150 W
Driver dimensions 12” (300 mm) woofer, 1,5”(38 mm) tweeter
Frequency response 45 Hz – 20 KHz
Bass control 80 Hz +/-15 dB
Treble control 12KHz +/-15 dB
Dimensions 615 mm x 400 mm x 320 mm
Weight 15 kg
The specifications above are correct at the time of printing of this manual. For improvement purposes,
all specifications for this unit, including design and appearance, are subject to change without prior
notice.

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