6
All the TTL33-A/ TTL31-A electronic is in a strong, separate, extruded
aluminum housing. From the right side of the amplifi cation modu-
le are available Neutrik Powercon input and output, on/off switch
and protected ports for the ventilation fan. From the left side of the
amplifi cation module are available all the inputs and controls. The
amplifi cation module is connected to the main cabinet in 4 points
with M6 metric screws and easily removable.
INPUTS
The TTL33-A/ TTL31-A input section offers XLR input, XLR output for daisy chaining, and sensitivity control (+
∞
, -2 dB).
A set of 5 switch is used for parameters and confi guration control: air absorption, cluster size, low frequencies cut off.
A data port is available for fi rmware upgrade and special applications.
SIGNAL PROCESSING
Each TTL33-A/ TTL31-A cabinet features a last generation, 32 bit fl oating point DSP for audio processing and a separate
micro-processor for general system management.
Analog-digital conversions are operated from high resolution 24 bit, 96 kHz converters.
The signal processing make use of state-of-the-art algorithms and performs a very accurate system equalization (6 point
each band), 24 dB/oct crossovers, transducers time alignment, hard limiter circuit, soft clipping circuit.
The DSP reads the system confi guration and adjust the parameters to optimise the performances related to air absorption, cluster
size and subwoofer fi ltering. “RCF Shape Designer” software helps defi ning all parameters for specifi c projects and system designs.
AMPLIFIERS
The TTL33-A/ TTL31-A amplifi cation power is delivered from 3/2 high accuracy, high power digital amplifi ers. Very low
distortion and very natural sound combined to minimum weight and minimum heat dissipation are the distinctive char-
acteristics of this unique amplifi er’s design.
THE TTL33-A AMPLIFICATION SECTION FEATURES:
• 750 watt switching power supply module
• 500 watt low frequency digital amplifi er module
• 500 watt midrange digital amplifi er module
• 250 watt high frequency digital amplifi er module
• extra capacitor bus able to sustain the full voltage for over 100 ms burst signals
The total available power supply power is 750 watts and can be distributed to the 3 fi nal amplifi er sections. Each amplifi er sec-
tion has a very high maximum output power capability in order to provide, when necessary, maximum output bursts in a specifi c
frequency range. A small fan, speed controlled, guarantee the air circulation inside the amplifi er in the most demanding situations.
THE TTL31-A AMPLIFICATION SECTION FEATURES:
• 750 watt switching power supply module
• 500 watt low frequency digital amplifi er module
• 250 watt high frequency digital amplifi er module
• extra capacitor bus able to sustain the full voltage for over 100 ms burst signals
ELECTRONICS
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