3 x 18″ Active Bass Reflex, Semi-horn Loaded Subwoofer
Designed to maximise in-phase frontal emission
On-board delay for perfect time alignment
On board cardioid array configuration preset
Frequency range extending down to 35Hz
Network ready with an integrated RDNet port
Vio S318 is equipped with 3 18” bassreflex half-horn loaded woofers, configured in order to maximise frontal emission. The 3 voice coils are in facts mechanically aligned in order to achieve a perfect phase response.
The 3 DIGIPRO G3 amplifiers deliver a total 2700 W RMS power, allowing the system to reach up to 143dB SPL.
The system features an integrated delay module achieving up to 9.9 ms delay with 0,5  ms steps. The crossover module sets the low pass filter alongside with the highpass filter for the integrated crossover output. The system also features an attenuation control, a polarity switch and a RDnet port for remote control.
The high quality multiplex housing is reinforced with a robust polyurea finishing and equipped with 5 aluminium handles per side.
The dolly transport DT-318 allows to transport up to 3 subs simultaneously, both on wheels or on lift track. As an alternative to the dolly, wheels can be mounted on the rear side of the cabinet.
 
ACTIVE 3×18″ BASSREFLEX SEMI-HORN LOADED SUBWOOFER
INTERNAL DESIGN TO MAXIMISE IN-PHASE FRONTAL EMISSION
ON-BOARD DELAY FOR PERFECT TIME ALIGNMENT
ON-BOARD CARDIOID ARRAY CONFIGURATION PRESET
FREQUENCY RANGE EXTENDING DOWN TO 35HZ
NETWORK READY WITH AN INTEGRATED RDNET PORT
 
Technical Data 
Speaker Type: Active Bassreflex Semi-Horn-Loaded Subwoofer
Acoustical data
Frequency Response [- 6 dB]: 39 Hz to Cut Freq (X-Over Dependent)
Frequency Response [- 10 dB]: 35 Hz (HPF)
Max SPL: 143 dB
LF: 3×18″
Voice Coil LF: 4 “
Directivity: Omnidirectional
 
Amplifier
Amp Technology: Digipro® G3
Amp Class: Class D
RMS Power: 2700 W
Peak Power: 5400 W
Cooling: Convection
Power Supply: 2700 W SMPS with Auto Range PSU
 
Processor
Controller: DSP 64 bit
AD/DA Converter: 24 bit/48 KHz
Limiter: RMS, Peak, Thermal
Delay Option:
0-9.9 ms internal
Steps of 0.1 ms
Crossover Frequency LF-HF: 70-105Hz + Full range
LF-Xover out slope: 24 dB/Octave
 
Input
Signal Input:
1xXLR balanced
1xRJ45 LINK (RDNet)
Signal Output:
1x XLR balanced
1xRJ45 LINK (RDNet)
Power Socket:
1xPowerCON TRUE1 IN
1xPowerCON TRUE1 OUT
Controls:
1x Input Attenuation Rotary Switch
2x Rotary Encoder (Delay 9.9 ms)
1XPolarity Inversion Switch (0° or 180°)
1xCardioid Mode Switch
1x X-Over Freq Switch (70-105 Hz + Full Range (steps of 5 Hz)
 
Mechanics
Housing:
Multiplex plywood
Polyurea painted
Handles:
4x Per Side
Aluminium
Raincover: Included
Rigging Points: 2xPick Points on top to fix DRK-210 rigging frame
Width: 1300 mm (51.18 in)
Height: 520 mm (20.47 in)
Depth: 800 mm (31.5 in)
Weight: 103.9 kg (229.06 lbs)