AMC MPA 30 User manual

IMPORTANT SAFETY INSTRUCTIONS
When using this electronic device,
asic precautions should always e
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. Use this device when you are sure that player has a stable base and it is fixed securely.
4. his product, in combination with amplifier and loudspeakers 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. he product should be positioned so that proper ventilation is
maintained.
5. he product should be located away from heat sources such as radiators, heat vents, or
other devices (including amplifiers) that produce heat.
6. he 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. he 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 into the outlet when it is 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. he product should be serviced by qualified service personnel if:
• he power supply cord or the plug has been damaged.
• Objects have fallen into or liquid has been spilled on the product.
• he product has been exposed to rain.
• he product has been dropped or the enclosure damaged.
10. here are some areas with high voltage inside, to reduce the risk of electric shock do not
remove cover of the player. he cover should be removed by the qualified personnel only.
No user servicea le parts inside.

CON EN S:
Before you start
Introductions 4
Features 4
Operation
Front panel 5
Rear panel 5
Media player 5
Function description (amplifier) 6
Function description (media player) 7
Output terminal 8
Controls and connectors
Connectors 9
Cable wiring examples 9
Specifications
General specifications 12

Introductions
his MPA 30 media player amplifier are designed for public address systems such as: paging,
announcements and background music broadcasting in industrial plants, offices, schools, shopping
centers, night clubs, dinning rooms, conference hall, auditoriums and recreations areas.
Features
• Preamplifier output and direct power amplifier input.
• 6.3mm S jack priority microphone input.
• 6.3mm S jack microphone input.
• AUX/PHONO input.
• one control.
• Built-in USB/SD/MMC player.
• Screw terminal for external 12V DC power supply.

Front Panel
1. USB/SD/MMC player 6. one control BASS
2. Priority microphone input 7. AUX/PHONO level control
3. Priority microphone level control 8. one control REBLE
4. Microphone input 9. Master volume control
5. Microphone level control 10. Power switch
11. Power indicator
Rear Panel
1. Power connector and AC fuse ( 1AL
250V)
2. Screw terminal for 12V DC power supply
3. Screw terminal output
4. Preamplifier output
5. Direct power amplifier input
6. AUX/PHONO input
7. AUX/PHONO selector
Media player
1. USB slot
2. SD MMC card slot
3. Control keyboard
4. LCD display

Function description
Amplifier
PRIORITY MICROPHONE INPUT
his is unbalanced microphone input which has a priority over the microphones, AUX/PHONO inputs and
media player.
PRIORITY MICROPHONE LEVEL CONTROL
his knob is designed for the priority microphone volume level controlling.
MICROPHONE INPUT
his is unbalanced microphone input.
MICROPHONE LEVEL CONTROL
his knob is designed for the microphone volume level controlling.
BASS TONE CONTROL
his knob is used to attenuate low frequency tones of the sound. Low frequency can by adjusted in ±10
dB range at 100 Hz point.
AUX/PHONO LEVEL CONTROL
his knob is designed for the AUX/PHONO input volume level controlling.
TREBLE TONE CONTROL
his knob is used to attenuate high frequency tones of the sound. High frequency can by adjusted in ±10 dB
range at 100 kHz point
MASTER VOLUME CONTROL
his knob is designed to adjust main volume of the amplifier.
POWER SWITCH
By using this switch amplifier can be turning on/off.
POWER INDICATOR
his LED lights up after amplifier's turning on.
POWER CONECTOR AND FUSE
Power connector is designed for main powers connecting to amplifier. his connector is combined with
fuse holder and 1A, 250V fuse.
SCREW TERMINAL FOR 12V DC POWER SUPPLY
his terminal is designed to power up the amplifier when the main power is unavailable. Use only
DC 12V power supply or batteries and take attention to polarity during the wiring.
SCREW TERMINAL OUTPUT
his terminal is designed to connect audio line to amplifier. here are available 4 types of output: low
impedance 4 Ω output, 25 Ω, 70 V and 100 V outputs for audio line. Please find same connection examples
in page 8.

PREAMPLIFIER OUTPUT
his is line level output directly from device preamplifier. Preamplifier output and amplifier input are
designed to insert signal processor such as equalizer or limiter.
DIRECT AMPLIFIER INPUT
his is line level input directly to device power amplifier. Preamplifier output and amplifier input are
designed to insert signal processor such as equalizer or limiter.
AUX/PHONO INPUT
Stereo RCA input with selectable sensitivity. here is a possibility to connect the line level audio as well as
phonograph.
AUX/PHONO SELECTOR
his selector is designed to adjust the gain for the AUX/PHONO INPU .
Media player
USB SLOT
USB slot for the USB flash drive inserting.
SD MMC SLOT
SD MMC slot for the SD MMC card inserting.
NEXT
Single press will change the playing track to next track. Single press in random playing mode skips to
random track.
FORWARD
Single press will change the playing track to forward track. Single press in random playing mode skips to
random track.
VOL+
Increase the music player volume.
VOL-
Decrease the music player volume.
REAPEAT
Pressing this key allows to change sound tracks playing mode like in picture below.
PLAY/PAUSE
By pressing this key when device is stopped, play starts after track search. When this key is pressed during
playing the mode of the device is changed into pause. When this key is pressed during pause, it switch
back to play mode.

ON/OFF
urns on/off the music player.
LCD DISPLAY
Displays the status of the device and main information about the playing track (time and tack number).
Output terminal
here is a possibility to connect external power supply, external battery etc. Please find the connection
example.

Connectors
S connector
RS connector
XLR male connector XLR female connector
RCA connector
Cable wiring examples
Cable to balanced input from balanced output. RS connectors.

Cable to unbalanced input from balanced output. RS and S connectors.
Cable to balanced input from unbalanced output. S and RS connectors.
Cable to unbalanced input from unbalanced output. S connectors.
Cable to balanced input from balanced output. XLR connectors.
Cable to unbalanced input from balanced output. XLR and S connectors.
Cable to balanced input from unbalanced output. S and XLR connectors.

Cable to balanced input from balanced output. RS and XLR connectors.
RCA cable.
Cable to unbalanced input from RCA output. RCA and S connectors.
Cable to balanced input from RCA output. RCA and XLR connectors.
Cable to balanced input from RCA output. RCA and RS connectors.
Cable to RCA input from balanced output. RCA and XLR connectors.
Cable to RCA input from balanced output. RCA and RS connectors.

General specifications
Power supply AC 230 V, 50 Hz or 12 V DC
Output power 30 W RMS
AC power consumption (Stand y) 16 W
AC power consumption 86 W @ RA ED POWER
Total harmonic distortions 0,5 %
MIC sensitivity -47 dBu
PHONO sensitivity -47 dBu
AUX sensitivity -17 dBu
Frequency response 80 Hz – 18 kHz +/- 3 dB
Output 100 V, 70 V, 25 V, 4 Ω
Bass control 100 Hz +/-10 dB
Tre le control 10 kHz +/-10 dB
Dimensions 75 mm (H) x 190 mm (W) x 280 mm (D)
Weight 4,5 kg
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