The integrated digital processor is based on a state of the art 32 bit, floating point DSP running at 96 kHz sampling rate. The calculation capacity largely exceed the processing needs and the DSP is never pushed to the limit.
The DSP takes care of the crossover, the equalisation of the transducers, limiter and system presets such as high pass filters, air absorption and cluster size corrections.
It is possible to operate directly on the DSP from the input board through these switches:
The combination of the 2 central switches gives 4 possibilities of mid low frequencies correction depending on cluster size:
• 4-6 modules (small flown systems)
• 7-9 modules (medium flown systems)
• 10-12 modules (medium large flown systems)
• 13-20 modules (large flown systems
The combination of the 2 top switches gives 4 possibilities of high frequencies correction depending on target distance (air absorption correction):
-near field ( up to 25 meters)
-mid field ( from 25 to 40 meters)
-mid/far field ( from 40 to 60 meters)
-far field ( more than 60 meters)
This switch by-pass (reset) the last preset loaded on TTL55A DSP with the RDNet Control 8 remote control to allow the manual configuration of the system.
The RDNet protocol represents a perfect blend of reliability and flexibility, in fact it is based on the RS-485 communication protocol, which is very stable and allows to send and receive data on a simple XLR cable in case Ethercon cables are not available.
The TTL55-A is equipped with a dedicated networking board. Using our proprietary RDNet protocol is possible to monitor all the system parameters, from the input to the status of each single amplifier.
Thanks to the DSP on board of each cabinet, it is possible to address to single cabinets or group of cabinets specific presets or modifications of parameters like gain, equalization or delay in real time.
In order to assist with the set up procedures for the TTL55-A line array system, RCF has developed a complete prediction software package.
The software enables a complete two dimensional simulation of the behaviour of the TTL55-A modules and also suggest the correct subwoofer combination.
The system curvature angles and the sound projection data are computed with maximum sound pressure levels for the given design.
The software will allow simulations up to a maximum of twenty TTL55-A systems.
The rigging menu provides data for weight, centre of gravity and length of the array configuration. Rigging points and rigging hardware configurations are also computed.