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.
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