Compact 18" sensor controlled subwoofer

  • Compact 18” sensor controlled subwoofer
  • Extended frequency range down to 25 Hz (-6 dB)
  • The feedback loop control ensures extreme fast transient response and ultra low distortion
  • Flyable or ground stackable in cardio or omni configurations
  • Rigging is compatible to ViRAY
  • Subwoofer arrays can be curved for perfect time alignment with ViRAY
  • LINUS10 DSP-amplifier and comparator provides integrated power and feedback loop control solution


The Coda Audio award winning sensor controlled technology is extended with the compact SCV-F subwoofer. Combining a closed feedback-loop control with large, low noise laminar flow ports the SCV-F subwoofer offers increased output and well controlled response.

This technology goes ahead of conventional subwoofers offering measurable and clearly audible advantages in the impulse response, group delay, waterfall and the distortion domain. In fact the range 35 – 100 Hz is time aligned while the group delay increase slightly in the range 25 – 35 Hz. The reduced group delay results in extremely accurate and musical bass reproduction. The sound quality is far beyond the conventional port loaded systems.


The SCV-F is a sensor controlled subwoofer incorporating an 18” woofer in a compact, vented enclosure.
The driver contains an integrated velocity sensor that measures the diaphragm movement in real time, compares it with the input audio signal and adjusts the amplifier driving voltage and/or current, correcting any driver inaccuracy. It is a self-optimizing, closed feedback-loop in which the driver confirms precisely the power it needs to accurately reproduce the original audio signal. The key advantage is a very extended and controlled response. Any distortion produced by the driver or the enclosure is instantly corrected by the feedback.


The SCV-F is equipped with an extremely long excursion 18” neodymium ultra low distortion woofer with integrated velocity sensor that measures, compares and controls cone movements. The neodymium motor delivers extreme high magnetic flux for increased efficiency. The 4” voice coil is 50 mm high, ensuring ultra linear excursion of 40 mm / pp at consistent magnetic force. State of the art carbon-fiber cone ensure maximum stiffness and low moving mass. Three aluminum shorting rings reduce inter-modulation distortion; minimize induction variation while reducing thermal compression. This design reduces dramatically the distortion of a typical subwoofer at longer excursion levels, and improves the overall sound quality and performance characteristics of the cabinet. The sensor is in fact an additional voice coil connected to the loudspeakers voice coil in a high precision, magnetically shielded system.


Using the Comparator
The Coda Audio LINUS10 DSP amplifier provides integrated power and feedback loop control solution for the SC4 subwoofer. The unit has two amplifier channels as well as two comparators connected to a 5-pol Neutrik XLR input. The Comparator’s electronic circuit loop measures the voice coil excursion of the driver and corrects the signal, significantly decreasing distortion. The unit is set for flat frequency response down to 25 Hz (-6 dB).


Primarily designed for integration into the ViRAY line arrays, the SCV-F is also suited for a variety of applications in touring and installations where compact size, high precision, deep bass with directivity control is needed.

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