The MLA-1 from JL Cooper is a wall-panel mounted MIDI line amplifier, featuring four MIDI inputs and four MIDI outputs, that would normally be accessed via a separate MIDI-jack panel. This allows MIDI signals to be sent through 1,000 feet or more of common twisted pair wire.
The unit is suitable for school installations, recording facilitates, stadiums, arenas, hotels, amusement parks, or other facilities where MIDI messages are required to be sent a long distance, or to multiple locations. Since the MLA-1 converts the MIDI input to a proprietary format, a second, compatible unit is required at the termination of the long cable run.
Surface mount MIDI line amplifier that allows for MIDI cable runs over 1,000 foot using common twisted pair wire