Introduction
About this Manual
This manual contains information about the Extron MPA 181T Mini Power Amplifier with instructions on how to mount and operate the unit.
About the MPA 181T
The Extron MPA 181T is a high performance, compact, single channel power amplifier. The MPA 181T delivers 18 watts (rms) for 70 Volt line level speakers, 14 watts (rms) for 4 ohm speaker loads, and 8 watts (rms) for 8 ohm loads.
The MPA 181T accepts balanced and unbalanced stereo and mono inputs, and outputs a mono audio signal to drive for 4/8 ohm direct speakers or 70 volt line distribution speakers.
Front panel controls are provided for input level, bass, and treble. The front panel also features a limiter switch which automatically reduces the gain to prevent distortion (amplifier clipping). The MPA 181T features remote control capability for volume adjustment and muting. The MPA 181T, housed in a 1U, quarter rack width metal enclosure, can be mounted under a desk, or mounted on a projector.
Features
Class D audio amplifier — The MPA 181T features improved, class D technology for high efficiency and low distortion.
Compact size — The MPA 181T is housed in a 1U high, 1/4 rack width, 6" deep, metal enclosure, allowing this amplifier to fit in many unique applications.
Three balanced and unbalanced audio inputs — Balanced or unbalanced input are available on the captive screw connector, while the 3.5 mm stereo mini jack and RCA connectors provide unbalanced input. The captive screw, RCA and stereo mini jack connectors are actively mixed together, then summed into a mono signal.
Selectable 70V or direct 4/8 ohm output — Fits distribution sound or direct 4/8 ohm applications.
Quick plug speaker outputs — Speaker output is on a captive screw connector for quick installation.
Front panel controls — Input level, bass, and treble can be easily adjusted from the front panel.
Limiter switch — The limiter switch prevents output distortion (clipping) and potential damage to speakers.
Volume and mute remote control — A rear panel, captive screw “Remote” input connector allows for remote control of volume adjustment and muting.
Flexible mounting options — The MPA 181T can be mounted on a rack, projector, or under furniture.
External international power supply — The included autoswitchable, 12 VDC, 3 A external power supply provides worldwide power compatibility
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MPA 181T • Introduction | MPA 181T • Introduction |
