MPA120MK2 6-Line/2-Mic Input Mixer Amp 120W 4Ω or 100V 1U

Product Features

• Super compact design with very low power consumption
• Six (unbalanced) stereo line inputs with individual sensitivity adjustment
• Two balanced mic inputs – 12 V phantom power available on either or both
• Separate HF/LF EQ adjustments for mic and music source
• Paging control on Mic 1 input via short-to-ground access connection
• Mic 1 configurable as high-voltage input for paging from existing 70/100 V-line system
• Selectable VOX mic-over-music priority on all mic Inputs
• Automatic Mic 1-over-Mic 2 priority in Page mode
• Selectable LINE 6 priority with choice of release times
• Selectable pre-announcement chime
• Music Mute
• Facility Port supports BT-1 Bluetooth and/or LM-2 Active Input Plates
• Compatible with standard Cloud remotes RL-1 &RSL-6 Series
• Power amplifier protection circuitry & input limiter
• Transformerless output stage 70/100 V-line systems directly, or low impedance loudspeakers (4/8 ohms)
• Aux output from pre-amp (balanced, line level)
• Automatic power-down function (user-selectable)
• ENERGY STAR Certification applied for
• Convection cooled (MPA120MK2); forced-air cooling with variable speed control (MPA240MK2)
• 1U 19” rack mounting unit

Product Specifications

Line Inputs

• Frequency Response:  20 Hz to 20 kHz, ±1 dB
• Sensitivity:  195 mV (-12 dBu) to 2.0 V (+8 dBu)
• Input impedance:  47 kohms
• Headroom:  16 dB
• Noise:  <-90 dB (22 kHz bandwidth)
• Equalisation
  • HF: ±10 dB @ 10 kHz
  • LF: ±10 dB @ 50 Hz

Microphone Inputs

• Frequency Response:  -3 dB @100 Hz (fixed filter) to 20 kHz, ±1 dB
• Sensitivity:  2.54 mV (-50dBu) to 245 mV (-10 dBu)
• Input Impedance:  3.3 kohms (balanced)
• Phantom Power:  12 V, switchable per-input by jumpers
• Headroom:  16 dB
• Noise (EIN):  -126 dBu
• Equalisation 
  • HF: ±10 dB @ 5 kHz 
  • LF: ±10 dB @ 100 Hz

High Voltage Input

• Frequency Response
  • via Mic I i/p:  -3 dB @100 Hz (fixed filter) to 20 kHz, ±1 dB
  • via Line 5 i/p:  20 Hz to 20 kHz, ±1 dB
• Input Gain Control:  10 dB to 20 dB
• Noise:  <-90 dB (22 kHz bandwidth)

Facility Input

• Frequency Response:  20 Hz to 20 kHz, ±1 dB
• Sensitivity:  0.775 V (0 dBu)
• Input impedance:  10 kohms (balanced)
• Headroom:  18 dB
• Noise Gate:  -60 dB

Main Outputs

• Output Power (1 kHz continuous sine wave)
  • MPA120 MK2:  120 watts
  • MPA240 MK2:  240 watts
• Minimum load
  • Low-Z output:  4 ohms
  • High-Z output
    • 70 V-line
      • MPA120 MK2 41 ohms
      • MPA240 MK2 66 ohms
    • 100 V-line
      • MPA120 MK2 21 ohms
      • MPA240 MK2 33 ohms
• Frequency response
  • Low-Z output:  20 Hz to 20 kHz, ±1 dB
  • High-Z output:  20 Hz to 20 kHz, ±1 dB (65 Hz filter off)
• THD + N:  < 0.05% @ 1 kHz
• Protection:  Fixed level signal limiter: DC, over-current and over-temperature protection

Auxiliary Output

• Nominal output level:  0 dBu (0.775 Vrms), balanced
• Noise:  <-90 dB, 22 kHz bandwidth

General

• Power Input:  Universal type, 85 to 265 VAC, 45 to 65 Hz
• Fuse details:  5 x 20 mm, time delay, 4 A
• Normal operating temperature:  0 °C to 35 °C (Note: performance and specifications cannot be guaranteed outside of this range)
• Cooling 
  • MPA120 MK2:  Natural convection
  • MPA240 MK2:  Forced air cooling, variable speed

Power consumption

• Standby
  • MPA120 MK2:  0.89 W (11.8 VA) 
  • MPA240 MK2:  0.89 W (11.8 VA)
• Idle
  • MPA120 MK2:  9.6 W (18.9 VA)
  • MPA240 MK2:  9.6 W (18.9 VA)
• 1/8th Power
  • MPA120 MK2:  29.9 W (40.6 VA)
  • MPA240 MK2:  48 W (56.7 VA)
• 1/3rd Power
  • MPA120 MK2:  59 W (67.1 W)
  • MPA240 MK2:  104.6 W (112.5 VA)

Heat Loss

• Standby
  • MPA120 MK2:  3.2 KJ/hr (3.1 BTU/hr)
  • MPA240 MK2:  3.2 KJ/hr (3.1 BTU/hr)
• Idle
  • MPA120 MK2:  34.5 KJ/hr (32.8 BTU/hr)
  • MPA240 MK2:  34.5 KJ/hr (32.8 BTU/hr)
• 1/8th Power
  • MPA120 MK2:   53.2 KJ/hr (50.5 BTU/hr)
  • MPA240 MK2:   64.3 KJ/hr (60.9 BTU/hr)
• 1/3rd Power: 
  • MPA120 MK2:  68.5 KJ/hr (64.0 BTU/hr)
  • MPA240 MK2:  87.7 KJ/hr (83.2 BTU/hr)

Physical

• Dimensions (w x h x d)
  • Net
    • 482.6 mm x 44 mm (1U) x 150 mm (less connectors & knobs)
    • 19” x 1.75” (1U) x 5.9” (less connectors & knobs)
  • Shipping (Gross)
    • 560 mm x 60 mm x 290 mm
    • 22” x 2.4” x 11.4”
• Weight
  • Net 2.15 kg / 4.8 lbs
  • Shipping 3.2 kg / 7.2 lbs

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