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Monitor Audio Radius 390 Walnut Subwoofer

Model #: R390WN
Monitor Audio
At a Glance
The Radius 390 comprises of colour-coded 10" C-CAM active/ABR drivers, powered by a 200 W Class D amplifier. Enjoy rapid EQ optimisation from Impact, Music and Movie settings, and system automation via the 12 V trigger.
Available in Store Only
$990.00Save $NaN

Get to know this product.


  • 18 mm MDF cabinet construction with internal bracing
  • Cool-running 200 W 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
  • This product is now available to use with home theatre design software, The CEDIA Designer.

Additional Specifications

System FormatActive sub-woofer system – Auxiliary (ABR) loading. 18 mm MDF cabinet
Lower Frequency Limit30 Hz (- 6 dB)
Upper Frequency LimitVariable 40 – 120 Hz @ 24 dB/Octave
Amplifier Output200 Watts @ 1% THD+N
Amplifier ClassificationClass D amplifier with Switch mode power supply (SMPSU)
Bass EQ ProfilesMusic / Movie / Impact
Phase Control0 & 180 degrees
Auto SensingLine Level >3.5mV
Input Level RequirementsStandby after approximately 15 minutes if no signal sensed
Drive Unit Complement1 x 10" (250 mm) C-CAM long throw driver 1 x 10" (250 mm) ABR
Input Impedance> 20 ohms
Mains Input VoltageAC 110 - 120 V ~ 50/60Hz; AC 220 - 240 V ~ 50/60Hz (Factory Region Preset)
Dimensions (Including Amp and Feet (H x W x D))348 x 330 x 345 mm (13 11/16 x 13 x 12 9/16")
ConnectionStereo RCA in, LFE in, 12v Trigger in (3.5 mm mono mini-jack)
Trigger Input5 - 12v via 3.5mm mono mini-jack socket
Power Consumption200 Watts / 0.5 Watts in Standby (ErP approved)
Weight (unpacked)13.76 kg (30 lb 4 oz)

Misc. Specs

Product Weight (lbs.)30.285
Depth (in.)12.56
Width (in.)13
Height (in.)13.69
Maximum Power Handling (Watts)200
Manufacturer Warranty5 Year
Color Finish NameWalnut
RMS Power Handling (Watts)200
WarningProposition 65 Warning for California Residents