The MSX 12s were supplied to the Installation Contractor by ARX's Australian distributor the Resource Corp Pty Ltd.
The ARX MSX 12 transformer isolated microphone / line splitter delivers noise-free audio splitting and is a totally passive device requiring no power, and consists of Four channels of transformer isolated ultra low noise microphone/line splitter.
Each of these channels has a direct looped Main / FOH feed allowing phantom power to pass through the unit with a transformer isolated monitor split on the front panel and a transformer isolated aux split on the rear.
(Jim Evans)
