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4.
THE TTL SYSTEM
AUDIO CONNECTIONS AND CABLING
The TT+ line arrays input panel presents balanced XLR input/output.
SIGNAL CABLES DAISY CHAINS
Audio signal can be daisy-chained using the male XLR loop through connectors. A single audio source can drive multiple
speakers modules (like a full left or right channel made of 8-16 speaker modules); make sure that the source device is
able to drive the impedance load made of the modules input circuits in parallel.
The TT+ line arrays input circuit presents a 100 KOhm input impedance. The total input impedance seen as a load from
the audio source (ex. audio mixer) will be:
• system input impedance = 100 KOhm / number of input circuits in parallel.
The required output impedance of the audio source (ex. audio mixer) will be:
• source output impedance > 10 * system input impedance
• always make sure that XLR cables used to feed audio signal to the system are:
- balanced audio cables
- wired in phase
A single defective cable can affect the performance of the overall system!
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