The SchoepsMDMS U Passive Matrix Box for Double M/S is a simple way to obtain "Double M/S" Surround. It is a small, sturdy box with high-quality transformers forming a passive decoder matrix. The microphone signals are converted directly into 5.0 L / R / C / LS / RS surround signals. A second, switchable mode supplies four signals with no center-channel output.
The matrix parameters have been chosen so that the resulting signals correspond to an optimal arrangement while avoiding unwanted artifacts.
Decodes five channels from three microphone signals
Powers the three microphones correctly when connected to five microphone inputs
Settings have following characteristics: minimal overlap (crosstalk), optimal pickup balance in all directions, well-balanced 360° localization capability, optimal constancy of total levels across 360°, minimal pickup via the rear lobe (< -11dB)
Schoeps MDMS U MATRIX Specs
XLR-7F for front M microphone (cardioid or supercardioid), Side microphone, rear M microphone (cardioid or supercardioid)
5 × XLR-3M for the surround signals L, R, C, LS, RS