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Adastra UM30 Ultra Compact Mixer-Amplifier 100V


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UM Series Ultra Compact Mixer-Amplifiers 100V

100V mixer-amplifiers with USB audio player, FM tuner and BT wireless receiver in an ultra compact housing. Microphone input, line input and USB/FM/BT sections are governed by front panel volume controls and a master volume. Mono output to either 100V line or 8 Ohms speaker load is connected via screw terminals on the rear panel. Supplied with hardware for mounting 2 units side by side in a 1U 19″ rack space. Designed as a versatile solution for small to medium PA installations.

  • Ultra compact form factor
  • Efficient class D amplifier design
  • Internal USB/FM/BT audio player
  • 100V line or 8 Ohms operation


  • Power supply170-264Vac, 50Hz (IEC) or 24Vdc
  • Amplifier : constructionClass D + transformer output
  • Audio sourceInternal USB/FM/BT player
  • Inputs1 x mic (6.3mm), 1 x line (2 x RCA), 1 x aux (3.5mm)
  • Line output2 x RCA (mono)
  • Speaker outputsScrew terminals – 100V / 8 Ohms / Com
  • DC power24Vdc screw terminals
  • Mute24V relay contacts
  • THD<0.4% @ 1kHz
  • Input impedance1k Ohms (mic/line)
  • Input sensitivity-10dB (line), -45dB (mic)
  • SNR80dB (line), 75dB (mic)
  • Frequency response100Hz – 18kHz
Output power : rms30W
Alarm outputN/A
Dimensions249 x 210 x 44mm

In the box

The box for this item contains :

  • UM series compact 100V amplifier
  • IEC power lead(s)
  • Rack-mounting hardware

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