What is the difference between the INS and INS MIX buttons on the 8816?
“INS” (Insert) button: This switches the primary pre fade insertion IN circuit, to allow (for example) a compressor to be inserted into the main program path. This insert also has the facility to be made into a Sum and Difference insert, where the Left carries the “Sum” signal and the Right insert carries the “Difference” signal. This allows the two signal to be processed separately before being decoded on the insertion return. This facility is enabled by pressing the main mix output level control and the “INS” button changes colour from yellow to red when the M&S processing is in circuit. A compressor such as the Neve 33609 can be patched across the Insert, allowing the whole mix to be compressed or EQ’d. Sometimes it is necessary to mix between a clean mix and a processed mix, for example when using a Filter Bank to create a special effect across the whole mix for one section of a song. This can be done by patching the filter bank across the Inserts of the 8816 and switching to Inser
