RCF TTL31-A-Mk II Line

RCF TTL31-A-Mk II Line

RCF TTL31-A-Mk II Line

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RCF TTL31A-MK2 overview

  • 1Description

The TTL31-A Mk II from RCF is a full range, ultracompact, wide dispersion, line array module for touring and theatre sound reinforcement. It is a 2-way active system featuring with an 8" neo woofer with 64 mm voice coil in a horn loaded configuration, 3 x 1" neo compression drivers with 37 mm voice coils, titanium dome, in a horn-array configuration. Each transducer has been specifically designed for the application.

The woofer provides large excursion and relatively very light weight, and an incredibly high BL for best vocal presence, and the compression driver design offers the minimum spacing between throats to avoid HF cancellation. Thanks to the extensive use of neodymium and new basket designs, the total weight of the 4 transducers is less than 6 Kg.

The amplifier section features 750 watt switching power supply module, 500 watt low frequency digital amplifier module, 250 watt high frequency digital amplifier module, and an extra capacitor bus able to sustain the voltage for 100 ms burst signals. The total available power supply power is 750 watts and can be distributed to the 2 final amplifier sections. Each amplifier section has a very high maximum output power capability in order to provide, when necessary, maximum output bursts in a specific frequency range.

The TTL31-A II amplifier represents an execution of thought out, DSP controlled multiway digital amplification. The analog input board offers XLR input and output link, cluster size control switches, high frequencies correction switches, pre-loaded equalizations by-pass (memory recall) switch and 4 status LEDs. Ethercon input and output connect the system in daisy chain on a RDNet monitoring and controlling system from the FOH. The signal processor is a 32 bit floating point DSP running at 96 kHz. and is responsible for crossover activity, equalization, the soft-limiters, RMS limiters, large signals compression and customized presets for the 2 way amplification.

The TTL31-A MKII is equipped with a dedicated networking board. Using our proprietary RDNet protocol, it is possible to monitor all the system parameters, from the input to the status of each single amplifier. Having a DSP on board of each cabinet, it is possible to address to each and every cabinet or groups of cabinets, with specific presets or modifications of parameters like gain, equalization or delay, even on the fly. The RDNet protocol is based on RS-485 communication protocol, is very stable, and it is possible to send and receive data on a simple XLR cable.

The AC panel features In/Out Powercon connectors and an On/Off switch. The cabinet is in marine Baltic birch plywood, coated with high resistance epoxy paint. The mechanical suspension and orientation system is in steel, very precise, and is relatively easy to use. The suspension system is directly connected to the aluminum sides of the cabinet. The suspension system is designed to have a safety factor 7 up to 16 speakers per side.

Table of Contents
  • 1Description

RCF TTL31A-MK2 specs

Acoustic Specifications
Frequency Response 60 Hz to 20 kHz
Maximum Sound Pressure Level (SPL) 132 dB
Horizontal Coverage Angle 100°
Vertical Coverage Angle 15°
Low Frequency Driver 8.0" neo, 2.5" Voice Coil (203.2 neo, 64.mm VC)
Midrange Frequency Drivers None available
High Frequency Driver 3 x 1.0" neo, 1.5" Voice Coil (25.4 neo, 37.0 mm VC)Me
Input / Output
Input Signal Balanced / unbalanced
Input Connections XLR, RDNet ready, Powercon
Input Sensitivity (Selectable) -2 dBu , +4 dBu
Output Connectors XLR, Powercon
Processor Section
Crossover Frequency 1600 Hz
Protection Features Thermal, hf
Electronic Sensitivity Control Yes
Limiter Fast limiter, RMS
High Pass Filter 100 Hz
Controls Gain reduction, RDNet local setup/bypass, Time Delay, Presets (Linear, Close, Far listening, High-pass), RDNet Ready
HF correction, cluster size, HPF
Amplifier Specifications
Active or Passive Active
Power Supply Switching, 750 Watt
Maximum Amplifier Power 750 W
High Frequency Driver 250 Watts
Mid Frequency Driver N / A
Low Frequency Driver 500 Watts
Cooling Convection forced
Connections Powercon in/out
Cabinet Material
Enclosure Material Baltic Birch plywood
Hardware Side fly fittings
Handles 2 per side
Color Black
Physical Specifications
Dimensions (H x W x D) 11.81 x 21.2 x 18.2" (300 x 538 x 450 mm)
Weight 49.5 lb (22.5 kg)

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