Active System Subwoofer

The VSS 18 is a completely digital system unit integrating a 18" direct radiating subwoofer. It includes digital amplifier technology with a high-performance audio DSP, switched mode power supply with PFC and neodymium loudspeaker in an extremely lightweight casing.

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  • compact system
  • balanced placement of the handles
  • light weight only 33 kg
  • usable for a single person
  • easy choice and upload of factory and user presets by navigation pad


  • heart and control center for large PA systems
  • system subwoofer in the systems: SD7 | SD8
  • also combinable with VLX 10 & 12
  • creation of powerful subwoofer arrays (also cardioid) in combination with subwoofer VB 18
  • integrated DSP enables to adjust multiple parameters (e.g. delay)
  • flexible signal routing of loudspeaker outputs


  • high sound pressure level at really low power compression
  • low frequent dispersion of 38 Hz – 160 Hz
  • minimum of air flow noises
  • consequent digital signal path


Components 18" neodymium
Dispersion omnidirectional
SPL nom. (Fullspace@1W/1m) / max. SPL (at AES nominal load) 102 / 129 dB
Frequency range (-10 dB) 40 Hz – fx
Amplifier 1x 750 W (bass) + 2x 500 W
Features (elektronic) ground-free, navigation pad, LCD-display, adjustable gain, digital crossovers (80–160 Hz), subsonic-filter, parametric EQs, peak/RMS-limiter, delays (0–1000 ms)
Power requirements 90–250 Volt / 50–60 Hz PowerCon In & Link
Control panel navigation pad, LCD-display, multi-color LED. 3 potentiometer
Connectors Line-ln 2x XLR, Link-Out 2x XLR AES/EBU In & Link-Out (XLR) 2x Speakon NL4
DSP 24 bit / <1,5 ms
Weight 33 kg