TTL55-A
ACTIVE THREE-WAY LINE ARRAY MODULE
MAIN APPLICATIONS
• Touring sound reinforcement for large-sized venues
• High quality reinforcement of music and speech
• Stadiums, arenas, concert halls
MAIN FEATURES
• Tour grade cabinet and mechanics
• 3500 Watt, 4 way amplification
• 6 x high power neodymium transducers
• High quality analog input board
• 96 kHz, 32 bit DSP processing
• Remote monitoring and control
• Maximum output per size on the market
DESCRIPTION
The TTL55-A is a high power, three way, active line array module engineered
to deliver an incredible output for use in indoor or outdoor large spaces.
The system is designed to be easily scalable from few modules for medium
and small theatres to full size arrays for very large outdoor stadia and public
spaces. The three new designs for the six neodymium transducers that power
the system represent the result of many years dedicated in pioneering new
solutions using the best materials available on the market.
The TTL55-A midrange transducer features a unique “Impedance Control
Coil” technology. A secondary coil wound on the speaker yoke and driven in
opposite phase to the primary coil has the function of cancelling the primary
coil inductance, increasing the speaker sensitivity and reducing the speaker
distortion. A primary effect of this technology is the improvement of the
temporal behaviour of the speaker, improving the crossover transition from
the midrange to the compression drivers.
The integration of the 3500 W four channel digital amplification and the
advanced digital processing set a new standard for distortion, noise and
thermal efficiency.
The TTL55-A amplifier represents a state of the art execution of a 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 switch. 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. The Dsp takes care of crossovers, equalisations, softlimiters, rms limiters, large signals compression and customised presets for
the 4 way amplification. Four digital amplifiers: 2 x 1000 watt low frequency,
1000 watt the midrange, 500 watt for the three high frequency drivers.
The TTL55-A is equipped with a dedicated networking board. Using our
proprietary RDNet protocol is possible to monitor all the system parameters,
form the input to the status of each single amplifier. Having a Dsp on board of
each cabinet, it is possible to address to single cabinets or groups of cabinets
specific presets or modifications of parameters like gain, equalisation or delay.
The RDNet protocol is based on RS-485 communication protocol, it is very
stable and it is possible to send and receive data on a simple XLR cable.
The TTL55-A cabinet is built in Baltic birch plywood and protected with heavyduty coating. The internal structure is braced and reinforced and all the parts
are assembled on metal inserts with metric screws. With a very small size
compared to the spl output it is easily transportable as a single module on a
dolly or in groups of four in dedicated karts. The front grille is powder coated
a features and special foam backing very transparent to the sound.
The suspension system is designed to have a safety factor 7 up to 20 speakers
per side.
ACOUSTICAL SPECIFICATIONS
Frequency response: 50 Hz- 20 Khz
Max SPL: 143 dB
Horizontal coverage angle: 90°
Vertical coverage angle: max. 7°
Compression driver: 3x1.5” neo, 2.5” voice coil
Midrange: 10” neo, 3.5” voice coil
Woofer: 2x12” neo, 4” voice coil
INPUT SECTION
Input signal (Impedance): bal/unbal
Input/Output connector: XLR, Ethercon
Input sensitivity: +4 dBu
PROCESSOR SECTION
Crossover frequencies: 320 Hz/1300 Hz
Protections: thermal, excurs., rms
Sensitivity control: Limiter: soft limiter
High pass: Controls: DSP controlled
AMPLIFIER
Power supply: switching 3500 Watt
High frequencies: D / 500 Watt
Mid frequencies: D / 1000 Watt
Low frequencies: D / 2 x 1000 Watt
Cooling: convection/forced
Connection: powercon
PHYSICAL
Height: 380 mm (15”)
Width: 1020 mm (40”)
Depth: 550 mm (21.6”)
Weight: 67 kg (147.7 lbs)
Cabinet: baltic birch plywood
Hardware: array fly-ware
Handles: 2 side
Pole mount cap Colour: Black
TTL55-A
TTL55-A
120
110
100
dB SPL
90
80
70
20
100
10
Total Q
1
100 1000 10000
100 1000 10000
Response -20dBu/1m
Frequency (Hz)
Directivity Index and Q
Frequency (Hz)
360
330
300
270
240
210
180
150
Coverage Angle (Deg.)
120
90
60
30
0
100 1000 10000
20
18
16
14
Directivity index Di, dB
12
10
8
6
4
2
0
5
0
-5
-10
-15
Attenuation in dB
-20
-25
-30
Horizontal ±10 degrees
Horizontal ±20 degrees
Horizontal ±30 degrees
Horizontal ±40 degrees
Horizontal ±50 degrees
Horizontal ±60 degrees
100 1000 10000
Beamwidth vs. Frequency
Horizontal Beamwidth (1/3 Octave)
Vertical Beamwidth (1/3 Octave)
Frequency (Hz)
Normalized Horizontal off-axis Response. Right side
Frequency (Hz)
5
0
-5
-10
-15
Attenuation in dB
-20
-25
-30
100 1000 10000
Normalized Horizontal off-axis Response. Left side
Vertical +10 degrees
Vertical +20 degrees
Vertical +30 degrees
Vertical +40 degrees
Vertical +50 degrees
Vertical +60 degrees
Frequency (Hz)
5
0
-5
-10
-15
Attenuation in dB
-20
-25
-30
Vertical -10 degrees
Vertical -20 degrees
Vertical -30 degrees
Vertical -40 degrees
Vertical -50 degrees
Vertical -60 degrees
100 1000 10000
Normalized Vertical off-axis Response.
Frequency (Hz)
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