The MPA 181T accepts balanced and unbalanced stereo or mono audio input signals, and provides a summed mono audio output for 70 volt speaker systems, or 4 ohm/8 ohm speakers. The amplifier provides full output power from unbalanced, -10 dBV inputs such as CD players and VCR sources. Front panel controls are provided for bass, treble, and input level. The front panel also features a limiter switch to prevent distortion from overdriven inputs. The MPA 181T features remote control capability for volume adjustment and muting. The MPA 181T is housed in a 1U, quarter rack width, 6" deep metal enclosure.

Features

• Inputs: Balanced or unbalanced stereo/mono on a captive screw connector; unbalanced stereo on RCA connectors and a 3.5 mm stereo mini jack; all inputs actively summed

• Speaker outputs: 5 mm captive screw connector

• Improved Class D amplification design ?Provides lower distortion and higher efficiency with less heat than traditional Class D designs.

• 18 watts rms output for 70 volt speaker systems

• THD + Noise: 0.1% @ 1 kHz at nominal level for 1 watt, 8 ohm load or 70V output

• 14 watts rms into 4 ohms, 9 watts rms into 8 ohms

• Front panel bass, treble, and input level controls

• Balanced and unbalanced buffered audio inputs ?Audio input is balanced or unbalanced on a captive screw connector, and unbalanced on both RCA connectors and a 3.5 mm stereo mini jack. The three inputs are individually buffered, and can be connected to three separate sources at the same time without altering performance.

• Front panel limiter switch to prevent amplifier clipping

• Remote control capabilities for volume via 10k pot. and muting via contact closure

• UL Rated for use in a plenum airspace ?Meets UL2043 and UL60065 for fire and smoke, excluding power supply.

• Rack-mountable 1U, quarter rack width metal enclosure

• Flexible mounting options ?The MPA 181T can be mounted above a projector or in a rack.

• External international power supply included, part # 70-380-01

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