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MPA 152 Amplier • Introduction
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MPA 152 Features
Class D digital audio amplifier — For high efciency and less
heat production.
Ripple Steering technology — Produces cleaner, low-emission,
audio output signals.
Fixed switching frequency — Switches at a frequency below the
AM band, which reduces the chance of radio interference.
Three audio inputs — Accepts 1 balanced/unbalanced input
pair (captive screw) and 2 unbalanced pairs (RCA and
TRS), providing up to three right and three left channel
inputs. All three right inputs are mixed to produce a
single right output; all three left outputs are mixed to
produce a single left output.
Stereo/Dual Mono toggle switch — Allows the user to choose
between stereo output or to sum the left and right outputs
and produce dual mono outputs.
Up to 15 watts (rms)/channel stereo output — Delivers up to
15 watts (rms)/channel, stereo or dual mono, into a 4 ohm
speaker system or up to 8 watts (rms)/channel into an
8 ohm system.
Front panel controls — Input level, bass and treble are easily
adjusted from the front panel.
Quick-plug speaker outputs — Speaker output is on a captive
screw connector for quick installation.
Volume and mute remote control — A rear panel, three-pin
captive screw remote input connector allows remote
adjustment of volume and muting.
Always-on clip limiting — Reduces gain automatically to
prevent amplier clipping.
Compact size — The ampliers are housed in a 1U high, quarter
rack 3" deep, metal enclosure, which offers exible
mounting options.
UL 2043 plenum rated — The MPA 152 meets UL 2043
requirements for heat and smoke release and is suitable
for in-the-ceiling installations, allowing the unit to be
stored out of sight, with reduced risk of theft.
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Although the amplifier is plenum rated, the power
supply provided with it is not. The power supply
must not be placed in the plenum space. All cables
connected to the amplifier must be plenum rated.