Yamaha PM4000 Owner's Manual (image) - Page 125
How to Use the VCA Masters Plus, the Group Master Faders to Obtain, the Functional Equivalent of 16
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8.2.4 How to Use the VCA Masters Plus the Group Master Faders to Obtain the Functional Equivalent of 16 Subgroups. Let's assume the object is to obtain a stereo output (or a pair of mono outputs). Some input channels can be assigned to the Group busses via their assign switches [1]. The eight Group Master Faders [42] then control these eight subgroups, and the Group-to-Stereo switches [40] combine these eight subgroups for control by the Stereo Master Faders [58]. At the same time, other input channels are not assigned to the groups. Instead, they are assigned directly to the stereo bus (and the Stereo Master Faders) by means of their ST assign switches [3]. In order to exercise group control of the direct-to-stereo input channels, those channels' VCA assign switches [22] are engaged (typically just one switch per module). The correspondingly numbered VCA Master Faders [47] then exercise control over subgroups of input channels which are assigned directly to the Stereo Master Fader. The eight VCA Master Faders plus the eight Group Master Faders thus control 16 different subgroups, all of which are mixed into the same stereo (or dual mono) output. NOTE: In this application, any groups requiring overall signal processing (such as compression of a drum group, or flanging of a vocal group) should be assigned to the Group Master Faders. This allows the Group INSERT IN/OUT patch point to be used to handle the overall mixed signal; there is no corresponding means to process a group which is created via VCA assignment. Figure 8-4. System Diagram with VCAcontrolled Inputs Plus Group Busses Used to Create 16 Subgroups, Which All Mix Into the Stereo Output Page 8-6