AMCPRO DMPA 60 Light Media Player Amplifier User Manual

AMCPRO DMPA 60 Light Media Player Amplifier

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). Care should be taken that objects do notfall into liquids and liquids would not be spilled on the device.

3. Use this device when you are sure that It has a stable base and It Is fixed securely.

4. This product, in combination with 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 an otorhinolaryngologist.

5. The product should be located away from heat sources such as radiators, heat vents, or other devices that produce heat

6. Note for power connections: for pluggable equipment. the socket outlet shall be installed near the equipment and shall be easily accessible.

7. The power supply should be undamaged and never share an outlet or extension cord with other devices. Never leave the device plugged into the outlet when it is not being used for a long period of time.

8. Power disconnection: when the power cord connected to the power grid is connected to the machine, the standby power is turned ON. When the power switch is turned ON, the main power is turned ON. The only operation to disconnect the power supply fi-om the grid, unplug the power cord.

9. Protective Grounding -An apparatus with class I construction shall be connected to a power outlet socket with a protective grounding connection. Protective Earthing – An apparatus with class I construction shall be connected to a main socket outlet with a protective earthing connection.

10. The lightning tlash with an arrowhead symbol, with an equilateral triangle, & is intended to alert the user to the presence of uninsulated dangerous voltage within the product’s enclosure that may be of sufficient 7 magnitudes to constitute a risk of electric shock to persons.

11. The exclamation mark within an equllate~I triangle Is Intended to al_ert the & user to the presence of important operating and maintenance (servicing) I
    instructions in the literature accompanying the appliance. •

12. There are some areas with a high voltage inside, to reduce the risk of electric shock do not remove oover of the device or power supply. The oover should be removed by the qualified personnel only.

13. The product should be serviced by qualified service personnel if:

14.  The power supply or the plug has been damaged.

15.  Objects have fallen into or liquid has been spilled on the product.

16.  The product has been exposed to rain.

17.  The product has been dropped or the enclosure damaged

CAUTION

To reduce the risk of electric shock, do not remove screws. No user- serviceable parts inside. Refer servicing to qualified service personnel. To reduce the risk of fire, electric shock or product damage, do not eJ<pOse this apparatus to rain. mom,, dripping or splashing and that no objects filled with liquids. such as vases. shall be placed on the apparatus.

Before you start

DMPA Light series device is a compact 1 U half-rack size public address mixing amplifier, containing media player with AUX input, Bluetooth and FM radio receivers, 1 microphone input, emergency mute control. This system is designed for small-scale installations, such as gas stations, bars, convenience stores, where easy operation is appreciated. Low impedance output on amplifiers DMPA30 Light and DMPA60 Light allows connecting in parallel two 8 ohm loudspeakers or four 16 ohm units. This amplifiers feature allows creating small size public address system with low impedance speakers in order to maximize audio quality for background music.

FEATURES

• Compressed audio playback
• Supports up to 32GB USB flash and SD cards
• Bluetooth and FM radio receivers
• 3 channel mixer with microphone and aux inputs
• Microphone input priority and phantom power
• Stereo RCA output
• Stereo RCA AUX input
• Emergency mute
• Amplifier output with phoenix connector
• Supports 100 V and 4 0 speaker installations
• Direct Low Z mode

Operation

Front Panel

1. MIC, AUX & Media player volume
2. Bass and treble controls
3. USB drive input
4. 3,5 mm AUX input
5. LCD display
6. Master volume
7. Mode button
8. Player control buttons
9. Repeat function button
10. Media player mute/ power button

Rear Panel

1. Mains power input & fuse holder
2. Power switch
3. Ground connecting point
4. Amplifier output
5. DC power supply input
6. RCA LINE output
7. RCA AUX input
8. Phantom power and mic input priority settings
9. Output impedance selector
10. Microphone input
11. 24 V emergency mute connector
12. FM antenna connector

Operation

Front panel functions

• MIC 1 /AUX/ PLAYER LEVEL CONTROLS
  Rotary knobs for adjusting the volume level of the selected channel. BASS

• BASS & TREBLE TONE CONTROLS
  Tone controls provide attenuation of bass and treble response. The flat position is obtained when the knobs are set to middle position. Turn the knob clockwise to raise tone level approximately+ 10 dB; turn counter-clockwise to lower tone level by approximately-10 dB.

• USB DRIVE INPUT
  For connecting USB flash drive only. Files are accessible in media player.

• AUX INPUT
  3,5 mm stereo TRS input for auxiliary audio source. Select AUX input in the media player to play sound from this input. Volume is controlled with a “PLAYER” level control knob on the front panel.

• MASTER VOLUME
  Rotary knob for adjusting master volume.

Rear panel functions

• MAIN POWER CONNECTOR AND FUSE
  Power connector for mains power, combined with fuse holder. Use only the same type of use that is written on the device.

• POWER SWITCH
  Switch amplifier power ON or OFF.

• AMPLIFIER OUTPUT
  Audio outputs for 4 0 and 100 V speaker lines. Only one output can be used at a time. Operating amplifiers with more than one output may cause damage the amplifier or connected speakers.

• DC POWER SUPPLY INPUT
  The amplifier can be operated using 24 V DC power. This is useful for emergency
  situations or when AC mains power is not available.

• LINE LEVEL AUDIO OUTPUT
  RCA stereo output for connecting device to an external audio amplifier or other equipment.

Operation

Rear panel functions

• AUX INPUT
  RCA stereo input for connecting external audio source.

• MIC INPUT
  Phoenix connector for balanced microphone connection.

• PHANTOM POWER AND INPUT PRIORITY
  MIC input can provide 24V phantom power for condenser microphones. This input can also have a priority over other inputs.

• OUTPUT IMPEDANCE SELECTOR
  The selector is intended to set up the amplifier’s outputs depending on the audio system type. 100 V mode enables output transformer and sets up amplifier circuits to adjust and amplify audio optimized for 100 V speaker lines. The 4-ohm mode turns off the 100 V output transformer, in order to connect audio directly from the power amplifier stage to the 4-ohm output terminal. This mode ensures the best amplifier performance also enables 20 Hz – 20 kHz frequency reproduction in order to force low impedance loudspeakers to sound as best as they can

• EMERGENCY MUTE
  When 24 V DC current is supplied to EMG MUTE input, all device outputs will be
  muted. This is useful when using devices combined with external alarm systems.

• FM ANTENNA
  F-type connector for FM radio antenna.

Media player functions

• LCD SCREEN
  LCD screen displays main information about media player status: track number and time, media player volume level, music source, FM frequency.

• USB FLASH DRIVE
  Supports up to 32 GB USB flash drives formatted in the FAT32 file system.

• MODE
  Switch player between Bluetooth, FM and USB player modes.

• PLAY/PAUSE
  Switch player mode between play and pause. Hold this button at FM mode in order to start radio station auto scan. Press this button rapidly in order to toggle FM frequency auto/manual scanning mode.

• FORWARD/BACKWARD
  Single short press in music and Bluetooth modes will change currently playing track. Holding buttons for few seconds Increase or decrease volume level of media player. In FM mode use these buttons to change FM frequency in 0.1 MHz steps, also switch radio presets.

Operation

Media player functions

• PLAY FROM USB
  When a USB memory stick is inserted into the USB port, the track number and time will show in the display and audio files will start to play automatically.

• REPEAT AND RANDOM PLAY
  Select one of three modes:
  RTA – Repeat all tracks.
  RTL – Repeat one track.
  RND – Random play
  The second function of this button is to save FM radio frequency to a selected preset.

• MUTE/POWER
  Press this button to mute audio. Hold this button longer in order to turn off/on media player.

• FM radio receiver
  FM radio receiver allows to save 26 presets with selected radio stations. It uses the same control buttons, but with different functionality (pictured below).

• ENTER TO AUTO-TUNING MODE
  Press and hold the Play/Pause button for a few seconds to scan available stations and store them as presets. Press and hold Play/Pause button for a few second to abort auto-tuning. To step through presets, press the Previous or Next buttons.

• ENTER TO MANUAL TUNING MODE
  Press the Play/Pause button to enter manual tuning mode. Use the Backward/Forward button to adjust the frequency in 0.1 MHz steps. Press the Repeat button to select preset number and change it by using the Backward/Forward buttons. Press the Repeat button again to save radio station to preset. Press Mute button to exit manual frequency adjusting without saving radio

Operation

Bluetooth

• PAIR
  1. Enter Bluetooth mode on your DMPA Light media player.
  2. Open the Bluetooth settings menu on your mobile device and search for “AMC Player_0000” in the list of available devices.
  3. Select “AMC Player_0000” and confirm that it is connected as an audio device.

• CONTROL
  Backward, Forward and Play/pause buttons control audio player on your mobile device. Holding the Backward or Forward buttons will adjust the output volume of the mobile device.

• RENAME
  Customize device Bluetooth name by holding Play/Pause button until “AMC Player_0000” is displayed. It is possible to change 4-digit part of the name. Press backward or Forward buttons to edit the number and Play/Pause to select another character. Hold Play/Pause to save changes and exit. Android devices have the facility to re-name devices within the Bluetooth settings menu. If the Bluetooth ID has been re-named on the Android device, editing the Bluetooth ID on the media player will not affect the name displayed on that Android device.

General Specifications

DMPA Light Media Player Amplifier

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