Format I requires: 1 omni, 1 shortgun, 1 figure 8.
Purpose: I format provides a strong fast front to back motion. It's 360° degrees proximity sensitive. It does not provide a very accurate L/R position, but it favorites the front to rear passage instead.
stereo encoding (DAT etc.)
X-Mat: Ch1 the omni to B1 and 2 to L/R on phase. On Ch 2 the Gunshot on B3 and 4 to L/R B3 out of phase. On Ch 3 the figure 8 on B1 and 2.
Position: near coincident.The shortgun point at fugue point surround, the figure 8 at side positions (180° relative to shortgun).