Monitor Audio Radius 390 10" Active Subwoofer

Model: RADIUS-390-BL
Colour - Black
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The Monitor Audio Radius 390 comprises of colour-coded 10” C-CAM® active/ABR drivers, powered by a 220W Class D amplifier.

Enjoy rapid EQ optimisation from Impact, Music and Movie settings, and system automation via the 12V trigger.


  • 18mm MDF cabinet construction with internal bracing
  • Cool-running 220W Class D amplifier with switch mode power supply (SMPSU)
  • Twin side-firing 10” C-CAM® drivers - one active and one passive ABR
  • Low pass filter switch – for LFE or Stereo input selection
  • Power switch with ON – Auto- Off/ trigger settings
  • Stereo/ LFE RCA inputs
  • 3 x Pre-set EQ settings – Music/Movie/Impact


    5 Years

    System Format: Active sub-woofer system – Auxiliary (ABR) loading. 18mm MDF cabinet
    Low Frequency Limit: 30Hz (- 6dB)
    Upper Frequency Limit: Variable 40 – 120 Hz @ 24dB/Octave
    Amplifier Power Output: 220 Watts @ 1% THD+N
    Amplifier Classification: Class D amplifier with Switch mode power supply (SMPSU)
    Bass EQ Switch: Music / Movie / Impact
    Phase Control: 0 & 180 degrees
    Auto Sensing: Line Level >3.5mV
    Input Level Requirements: Standby after approximately 15 minutes if no signal sensed
    Driver Compliment: 1 x 10” (250mm) C-CAM® long throw driver 1 x 10” (250mm) Auxiliary bass radiator
    Input Impedance: > 20K Ohms
    Mains Input Voltage: AC 110 - 120 V ~ 50/60Hz; AC 220 - 240 V ~ 50/60Hz (Factory Region Preset)
    Dimensions including amp & feet (HxWxD): 348 x 330 x 345mm (1311/16 x 13 x 129/16 Inches)
    Connections: Stereo RCA in, LFE in, 12v Trigger in (3.5mm mono mini-jack)
    12v Trigger Input: 5 - 12v via 3.5mm mono mini-jack socket
    Power Consumption: 220 Watts / 0.5 Watts in Standby (ErP approved)
    Weight (Unpacked): 13.76Kg (30lb 4oz)

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