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6.2 Operational Check List
To operate a DSAi module, 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
accommodate 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 DSAi in one of three ways:
1. Always On: Connect the module to a continuously powered ac
mains supply. The module is always ready for use. For this mode,
disable the Power Management function.
2. Off/On: Connect the module 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 module to a continuously powered ac
mains supply. The module 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 module will be set to
what it was for the previous use. The signal processing settings are
retained by non-volatile memory in each module. 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.
6.3.3 OPERATION
Operate DSAi similarly to any other loudspeaker. This normally involves
setting the source levels to achieve the desired output as well as applying
external equalization or other signal processing to achieve certain
desired results. DSA’s internal user signal processing, set using
DSAPilot, should not be used for in performance adjustments.
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