6
Operating Instructions
Using the 3-position
Output Assign
switches, select either the
A Input
, the
B Input
, or
A+B Inputs
. If the sum of
both inputs is selected, but only one input is driven, the output is reduced by 6 dB compared to the output being
assigned to only the driven input. Since normally the output would be assigned to both inputs only if both inputs
are driven, this isn’t usually an issue. With the sum of the inputs available in this way, the DA216S may be used as
a two-input mixer with 16 assignable outputs. Each output has an independent Gain control which ranges from
off
to +6 dB gain in the output stage. Coupled with a maximum gain of +10 dB for the
Master Level
controls, a
total of +16 dB gain is available with the
Output Level
controls. The
Input Gain
switch provides for an additional
20 dB gain increase.
Mic-Level
For optimum noise performance with microphones, obtain as much gain as possible in the Input stage of the
DA216S without overdriving the unit.
1.
Set the appropriate
Input Pad
switch to
Mic
(
out
).
2.
Set the appropriate
Input Gain
switch to 40 dB (
in
).
3.
Set the
Master Level
controls fully counterclockwise.
4.
Set the
Output Level
controls midway.
5.
Adjust the
Master Level
clockwise until the
OL LED
just blinks on the loudest expected program material. If
the master level is turned all the way up and the OL LED is not lighting, set the
Input Gain
to 60 dB and
adjust the master level again. Adjust the
Output Levels
for the desired output level. If the OL LED is
not
lit,
adjusting the output level cannot cause clipping within the DA216S. The user may still want to turn down the
output level to avoid overloading downstream equipment.
Line-Level
In the line-level configuration, start with unity gain.
1.
Set
Input Pad
switch to
Line
position (
in
).
2.
Set appropriate
Input Gain
switch to 0 dB.
3.
Set
Master Level
controls fully counterclockwise.
4.
Set
Output Level
controls midway.
5.
Adjust the
Master Level
clockwise until the
OL LED
just blinks on the loudest expected program material. If
the master level is turned all the way up and the OL LED never comes on, set the
Input Gain
switch
out
to the
20 dB position. Adjust the master level control as before for optimum gain, then adjust the
Output Level
controls for the desired output level.
Summary of Contents for DA216S
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