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Monitor Audio Radius 390 10" Active Subwoofer

SKU Radius-390-BL
RRP Price £500.00
RRP Price £500.00 - RRP Price £500.00
RRP Price £500.00
Trade Price £390.00
£390.00 - £390.00
Trade Price £390.00
ex. VAT (Calculated At Checkout)
Colour: High Gloss Black Lacquer

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

Technical Specifications

  • 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)

Our aim is to get your product to you as soon as possible from your order.

We do however strongly suggest that you order in good time before you need the item(s) to ensure safe delivery.


All orders are shipped via next working day courier using a combination of DPD & ParcelForce.

Next Working Day = £6.99 + VAT

Orders Over £250 + VAT = £FREE

Saturday Delivery = Call Us To Book & Confirm Costs.


We hold good stock of the majority of our goods however some items are ordered in as and when required.

If you need an item urgently please call us on 02392 006118 to first confirm lead time. 

Our aim is to keep stock so you don't have to and we'll always endeavour to get your product to you ASAP.


All orders received before 2pm will be processed for next working day delivery. Orders received after 2pm will be processed and dispatched the following working day.