Speck Electronics Xtramix - Manual (Page 25)

The smaller (inner) knob of the black capped concentric adjusts the level
being sent to the selected "Odd" effects bus. This control is used in
conjunction with the Odd Effects Assign Switch and Odd Assign
Changeover Switch.
When this button and the Odd Effects Changeover Switch (see below)
are both in the up position, then effects send #1 is selected. Depressing
only the Odd Effects Assign Switch changes the selection to effects #3.
Note that the 1/3 symbol immediately to the right of the Assign Switch
is meant to be read as 1 or 3.
Depressing this button accesses the 5/7 (5 or 7) effects sends. With this
switch down, and the Odd Effects Assign Switch in the up position,
effects send #5 is selected. When both buttons are depressed, then
effects send #7 is selected.
The larger (outer) knob of the black capped concentric adjusts the level
being sent to the selected "Even" effects bus. This control is used in
conjunction with the Even Effects Assign Switch and Even Assign
Changeover Switch.
When this button and the Even Effects Changeover Switch (see below)
are both in the up position, then effects send #2 is selected. Depressing
only the Even Effects Assign Switch changes the selection to effects
send #4. Note that the 2/4 symbol immediately to the right of the Assign
Switch is meant to be read as 2 or 4.
Depressing this button accesses the 6/8 (6 or 8) effects sends. With this
switch down and the Even Effects Assign Switch in the up position,
effects send #6 is selected. When both buttons are depressed, then
effects send #8 is selected.
Odd Effects Sends
10. Odd Level Control
Even Effects Sends
13. Even Level Control
11. Odd Effects Assign Switch
12. Odd Effects Changeover
Switch
14. Even Effects Assign Switch
15. Even Effects Changeover
Switch
20 Chapter 4 Operation Section