The Studiomaster Professional ARC 120A MIXER/POWER AMPLIFIER offers versatile features & outstanding value for installed sound applications such as schools, offices, restaurants, shops, factories, houses of worship and large meeting rooms.

  • PA Amplifier/Mixer.
  • 4 Balanced Mic/Line Inputs (Combo jacks)
  • 1 Auxiliary (stereo summing) Input.
  • Bass/Treble & Master controls on front panel.
  • Switchable phantom power for CH 1 mic input.
  • Low cut switch on rear panel.
  • Vox Priority on channel 1 overrides all other Input signals when activated
  • LED indicators for power on, signal & clip.
  • Pre out & Amp in (Send/Return) to connect to Equalizers or EFX processors.
  • Auxiliary Line Out to connect to a Booster Amplifier
  • • Can be used with either 70V or 100V or the 4 Ω, 8 Ω, 16 Ω
Power Output 200W Max., 160W RMS at 10% THD 150W RMS at 5% THD, 120W RMS at 1% THD
Outputs Speakers min 4 Ω, 8 Ω, 16 Ω, 70V, 100V
Line Out 1V/600 Ω
Pre Out 1V/600 Ω
Input 1–4 Mic 1.5 mV/1.1kΩ switchable to Line 300mV/14kΩ; XLR, balanced
Aux 300mV/50kΩ; RCA, unbalanced
Frequency range 50 –15000Hz, ±3dB
S/N ratio > 92dB
Tone control  
Bass ±10dB/100Hz
Treble ±10dB/10Hz
Power Supply 240V~/50Hz
External DC Supply 24V/9A
Dimensions (W x D x H)mm 482 x 275 x 88 (2U)
Net Weight (Kgs.) 10