• $990.00

The MP-A Series music and paging amplifier family builds on a 50 year legacy of QSC amplifier dependability and quality while offering an incredible amount of flexibility for business music and paging applications.

FlexAmp Technology

FlexAmp Technology simplifies system design by allowing a single high channel count amplifier to meet the needs of systems that would typically utilize multiple amplifiers of different power levels. It achieves this by allowing the installer to configure each pair of channels (e.g. ch 1-2, or 3-4, etc.) to deliver up to 400 W combined output power, in any mix. This makes for an amazing amount of flexibility, especially when paired with the output mode switch that offers settings for 4 Ω, 8 Ω, 70 V and 100 V.

Additional capabilities of the MP-A series include an 80 Hz highpass filter available on each output, as well as a remote input for putting the amplifier into standby mode for fire safety systems and an amplifier status signal on the remote output for system verification.


For an example of versatility of the MP-A Series, imagine the MP-A40V in a typical restaurant scenario. Output A of the amplifier is set up for a 20 W 70 V load for a pair of ceiling loudspeakers in the bathrooms while output B is set up in 4 Ω mode for driving one or two Lo-Z subwoofers with up to 380 W. Output C is set up with the highpass filter engaged for driving 250 W into 70 V ceiling loudspeakers in the main dining room, while output D is driving 150 W into 8 Ω surfacemount loudspeakers on the patio.

Power and Space Efficiency

MP-A Series amplifiers are extremely efficient with class-D output circuitry and switchmode power supplies. In addition, all models offer seamless Standby mode when not in use for 28 minutes and auto-ramp circuitry that ensures quiet and fast power up from Standby when signal is present. This combination of output topology and energy saving circuitry make for extreme efficiency and low operational costs. The 1RU chassis means that the MP-A Series amplifiers are perfect for installations with rack space restrictions.

  • FlexAmp Technology allows each pair of amplifier channels to deliver up to 400 W total power, in any ratio.
  • Class-D output circuitry and switchmode power supply for high efficiency and low cost of ownership
  • 1RU amplifier design for rack space savings
  • Load selector for driving 4 Ω, 8 Ω, 70 V or 100 V on each channel
  • Selectable 80 Hz highpass filter offered on each channel
  • Power saving features - Auto-standby (after 28 minutes with seamless autoramp when signal returns) and remote standby input
  • Amp status remote output
  • Legacy of rock-solid QSC amplifier dependability
Power (all channels driven)
200 watts
200 watts
70 V 200 watts
100 V 200 watts
FlexAmp Technology Allows each pair of amplifier channels to deliver up to 400 W total power, in any ratio
Frequency response at 8 Ω 20 Hz – 20 kHz +/- 0.5 dB
Signal to Noise > 103 dB
Input sensitivity 1.23 V (+4 dBu)
Gain at 8 Ω 30.0 dB
Output circuitry Class D
Input impedance >10k, balanced or unbalanced
Maximum input level 12.3 V (+24 dBu)
 Type Forced air cooling, thermally regulated fan speed, side/rear-to-front airflow
 Operating temperature range Maximum: -10° - 50° C, recommended: 0° - 35° C, reduced performance above 40° C
 Input Connectors Two 3.5mm Euro, 3-pin (green)
 Remote Connectors One 3.5mm Euro, 5-pin (black)
 Output Connectors One 5.0mm Euro, 4-pin (green)
Front Panel Indicators Power, signal (per channel), limit / mute / protect (per channel)
Rear Panel Indicators Short circuit, open circuit, thermal, RF protection
Load protected against DC faults
Front Panel Controls and Indicators Bi-Color LED signal / limit/ mute/ protect
Remote I/O Remote standby, amplifier status enunciation on 3.5 mm connectors
Highpass filter 80 Hz DIP switch engaged per channel
Dimensions 1.75 in x 19 in x 14.8 in (44 mm x 483 mm x 377 mm)
Net Weight 3.5 kg / 7.7 lb
Shipping Weight 5.6 kg / 12.3 lb
Power requirements Universal power supply (with active power factor correction), 100 – 240 VAC, 50 -60 Hz
Agency Approvals UL, CE, RoHS/WEEE compliant, FCC class B (conducted and radiated emissions)
  • 1x QSC MP-A20V Amplifier
  • 1x Power Cable
  • User Manual

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