dBTechnologies VIO S218 Dual 18-Inch Active Subwoofer

The dBTechnologies VIO S218 is a high-output dual 18-inch active bass-reflex subwoofer built for touring and large sound reinforcement systems. Two neodymium woofers with 4-inch voice coils deliver deep low-frequency impact, with usable bandwidth extending from 28 Hz to the selected crossover frequency.

Two Digipro G4 Class D amplifiers provide a combined 3200 W RMS output and a maximum SPL of 143 dB. Pair it with your VIO loudspeaker system for powerful bottom-end reinforcement, with onboard delay, polarity inversion and a cardioid stack preset to support flexible system configurations.

Key Features

• Dual 18-inch neodymium woofers with 4-inch voice coils
• Active bass-reflex enclosure
• 3200 W RMS amplification from two 1600 W RMS Digipro G4 Class D amplifiers
• Maximum SPL: 143 dB
• RDNet card installed for remote control via Aurora Net
• Optional Dante card upgrade, sold separately
• NFC proximity sensors and front LED identification system
• Onboard delay from 0 to 9.9 ms in 0.1 ms steps
• Cardioid mode and polarity inversion controls
• System Test transducer diagnostics
• Multiplex plywood cabinet with polyurea finish
• Rain cover included

Technical Specifications

• Frequency response (-6 dB): 28 Hz to selected crossover frequency
• Frequency response (-10 dB): 27 Hz (HPF)
• Directivity: omnidirectional
• DSP: 32 bit
• AD/DA conversion: 24 bit / 96 kHz
• Limiters: peak, RMS and thermal
• Crossover: selectable 60–110 Hz plus full range, 8 steps
• Crossover output slope: 24 dB/octave
• Cooling: passive convection and internal fan
• Power supply: full-range SMPS with PFC, 100–240 V, 50–60 Hz
• Balanced XLR signal input and output
• USB data service port
• RDNet RJ45 input and link
• powerCON TRUE1 mains input and output
• Polarity: 0 or 180 degrees
• Two top pick points for a DRK-210 rigging frame
• Dimensions (W x H x D), per manufacturer technical table: 1300 x 520 x 800 mm
• Weight: 85.6 kg