Setting Up A Master And Slave Configuration - AUDIOropa PRO LOOP Class-D Serie Bedienungsanleitung

5. Setup
5.1 Setting up a simple perimeter loop
- Power up your amplifier and check that all potentiometers are at 0.
- Connect your loop to the »speakON« loop connector.
- Connect a 1 kHz sinusoidal source tone to one of the inputs.
- Increase the input signal on the front panel of the PRO LOOP driver to between 26 and
36 dB of the input level indicator.
- Increase the output current via the loop output adjuster on the front panel of the
driver to reach between 75% and 100% on the output level indicator.
- Take a field strength meter and take a first measurement in the center of your room.
- Adjust the settings to -3dB in the center of the zone.
- Perform further adjustments to achieve a IEC60118-4 compliant installation.

5.2 Setting up a Master and Slave configuration

5.2.1 Master driver
Drivers of the PRO LOOP D series can use a secondary (or more) unit for low-overspill
loop installations, daisy-chained with an alternating 90° phase shift.
In cases where a very large coverage area is needed, several units can be combined in
Master- and Slave setups to achieve this. The Master driver unit is the unit with the audio
source connected at INPUT 1, 2 or 3. This is the basic signal, the phase shift modules
within in the units will shift this signal by 90 ° or 0 ° to pass it to the next slave driver.
There is no particular setting needed to determine which driver will be a Slave unit: The
Master driver is the only driver that will have INPUT 1, 2 or 3 in use, see section 4.7.1.
5.2.1 Master loop
- Power up your Master driver and check that all controls are set to 0.
- Connect your primary loop to the »speakON« Master loop connector
- Connect a 1 kHz sinusoidal source tone to one of the inputs
- Increase the input signal on the front panel of the PRO LOOP driver to between 26 and
36 dB of the input level indicator.
- Increase the output current via the Master output adjuster on the front panel of the
driver to reach between 75% and 100% on the output level indicator.
- Take a field strength meter and take a first measurement in the center of your room.
See the following section 5.2.2.
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