Grass Valley Maestro Master Control v.1.7 - Manual (Page 138)

134 Maestro Channel Branding User Guide
Section 5 — The Maestro Configuration Editor
Figure 104. Mono to Center Surround and Stereo Up Mix
Figure 105 shows the mono source mapped to the left front and right front
outputs equally.
Figure 105. Mono to Left and Right Front Surround and Stereo Up Mix
Figure 106 shows mapping to all three front speakers.
Figure 106. Mono to Left Front, Right Front and Center Surround and Stereo Up Mix