Owner's Manual

Features
• 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 auto-
ramp when signal returns) and remote
standby input
• Amp status remote output
• Legacy of rock-solid QSC amplifier
dependability
Multi-channel amplifiers
MP-A Series
MP-A20V | MP-A40V | MP-A80V
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.
Flexibility
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 surface-
mount 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.
Introduction
MP-A20V | MP-A40V | MP-A80V