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6.2 Operational Check List
To operate a DSA loudspeaker, pre-performances checks and adjustments
should be made. In typical permanently installed applications, these
checks would normally be one-time, set-up adjustments that may only
need to be periodically verified. All of these steps require using DSAPilot.
1. Set the Power Management function as appropriate for your application.
2. Select each cluster in the DSAPilot design and verify the LED indicator
illuminates on the corresponding physical cluster.
3. Verify that the LED indicator on each enclosure is at the top or bottom
as shown in DSAPilot.
4. Adjust the input gain for each cluster for the desired nominal output
level for the expected input signal levels.
5. Adjust the input EQ for each cluster for the desired voicing to accom-
modate room acoustics, program content, or personal taste.
6. Adjust the input Limiting for each cluster to prevent higher than desired
output SPLs.
6.3 Normal Operation
6.3.1 POWERING UP
Power is applied to DSA in one of three ways:
1. Always On: Connect the loudspeaker to a continuously powered
AC mains supply. The loudspeaker is always ready for use. For
this mode, disable the Power Management function.
2. Off/On: Connect the loudspeaker to an AC mains supply which
is switched on and off between uses. The AC mains must be
switched on for each use. For this mode, disable the Power
Management function.
3. Standby/On: Connect the loudspeaker to a continuously powered
AC mains supply. The loudspeaker will be ready when input signal is
applied. For this mode, enable the Power Management function.
6.3.2 SIGNAL PROCESSING SETTINGS
When powered up, the signal processing in each loudspeaker will be set to
what it was for the previous use. The signal processing settings are
retained by non-volatile memory in each loudspeaker. This memory will
last indefinitely when connected to the AC mains. When disconnected
from AC mains, a battery supplies power to this memory. The expected
battery life without being connected to the AC mains is 10 years.
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