AMC MA 30X Mixer Amplifier User Manual

AMC MA 30X Mixer 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).
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 gastroenterologist.
5. The product should be located away from heat sources such as radiators,  heat vents, or other devices 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.
7. The power supply should be undamaged and never share an outlet or extension cord with other devices. Never leave device plugged into the outlet when it is not being used for a long period of time.
8. Care should be taken that objects do not fall into liquids and liquids  would not be spilled on the device.
9. The product should be serviced by qualified service personnel if:
   • The power supply 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.
10. There are some areas with high voltage inside, to reduce the risk of electric shock do not remove cover of the microphone receiver or power supply. The cover should be removed by the qualified personnel only.

Before you start

MA 30X is a compact 30 W mixing amplifier for small size installations. It features 3 channel mixer, output level meter, bass and treble tone controls, paging microphone input with phantom power and adjustable priority setting, 2 inputs for line or microphone level signals. Equipped with low and high impedance outputs for all speaker line types.

FEATURES

•  30 W power amplifier
• 3 channel mixer
• LED output level meter
• Bass and treble tone controls
• Low and high impedance outputs
• Two inputs for microphones or line level signal
• One microphone input with phantom power and priority
• Phoenix connector for outputs

Operation

Front Panel Functions

• CHANNEL 1-3 VOLUME CONTROL
  Control volume of inputs 1-3 Inputs 2 & 3 will be muted when input 1 is set to have a priority.

• BASS & TREBLE TONE CONTROLS
  Bass control ±12 dB, center frequency 80 Hz Treble control ±12 dB, center frequency 12 kHz

• MASTER VOLUME
  Control device master volume.

• Output level meter
  Provides visual indication of device output level.

• POWER
  Switch MA 30X ON or OFF.

Back Panel Functions

• MAINS POWER INPUT AND FUSE BOX
  If fuse replacement is needed use only the same type of fuse that is written on the back of the device.

• AMPLIFIER OUTPUTS
  Connect audio line to amplifier. There are 4 types of outputs: low impedance 4 Ω & 8 Ω outputs, high impedance 70 V & 100 V outputs.

• INPUT 1
  Balanced XLR connector for paging microphone. When active, input 1 will silence inputs 2 & 3 (use priority rotary dial to set level of attenuation). +48 V phantom power can be supplied to this input in order to use MA 30X input 1 with condenser microphone. Phantom power enable/disable jumper is installed inside amplifier near microphone 1 XLR connector.

• INPUT 2
  Balanced XLR connector for microphone and balanced Phoenix connector for mono line level signal. Connect only one source at the time.

• INPUT 3
  Unbalanced TS connector for microphone and unbalanced RCA connectors for stereo line level signal. Connect only one source at the time.

General Specifications

MA 30X

• Power supply
  230 V AC 50 Hz

• Output power
  30 W

• Idle power consumption:
  7.3 W

• Max power consumption:
  90 W

• Input 1-3 MIC input sensitivity
  -51 dBu

• Input 2 line input sensitivity
  -14 dBu

• Input 3 line input sensitivity
  -20 dBu

• Total harmonic distortions
  1%

• S/N ratio
  55 dB

• Frequency response
  55 Hz – 20 kHz (±3 dB)

• Output
  4 Ω, 8 Ω, 70 V, 100 V

• Bass control
  ±12 dB, center frequency 80 Hz

• Treble control
  ±12 dB, center frequency 12 kHz

• Dimensions
  280 mm (W) x 233 mm (D) x 75 mm (H)

• Weight
  3.5 kg

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