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Monitor Audio SRAD390 Radius 390 10

Monitor Audio SRAD390 Radius 390 10" Active Subwoofer Satin White

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  • 10" C-CAM drivers
  • 3 x Pre-set EQ settings
  • 200W Class D amplifier

The Monitor Audio SRAD390 Radius 390 is a 10" active subwoofer which features twin side-firing 10" C-CAM drivers & 200W cool-running Class D amplifier (Read more)

£575.00 Ex VAT
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Product Code14945
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The Monitor Audio SRAD390SW is a Satin White Radius 390 10" Subwoofer with twin side-firing 10" C-CAM drivers - one active and one passive ABR - which work in tandem with a powerful 200 W cool-running Class D amplifier (double the power of its predecessor). The drivers have no grilles but are colour-coded to coordinate with cabinet finish. A 12 V trigger syncs the 390 with other AV components when the system is activated, delivering rapid EQ optimisation from Impact, Music and Movie settings.

C-Cam Drivers

Refined over many years by Monitor Audio, Ceramic-Coated Aluminium/Magnesium is used as a driver cone material for all their speaker designs from the mid-market models up. Originally developed by the aerospace industry for jet engine components, C-CAM's properties are ideal for loudspeaker cones being extremely rigid, yet light enough to yield high overall efficiency. C-CAM bass drivers are able to resist the bending distortion imposed by sudden and extreme bass excursions to reproduce very clean, deep and dynamic bass frequencies. Conventional cone materials are more likely to flex in operation, producing a significant level of audible distortion.


For open environments sound quality can be further enhanced through the use of a sealed ABR (Auxiliary Bass Radiator). The ABR works like a piston moving back and forth generated by the movement of the air via the motion of the mid/bass driver inside the sealed cabinet. This makes the ABR ultimately act like a conventional port resulting in superior low frequency punch and extra penetration whilst keeping the elements at bay.


  • 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
  • Satin White
System Format Active sub-woofer system - Auxiliary (ABR) loading. 18 mm MDF cabinet
Lower Frequency Limit 30 Hz (- 6 dB)
Upper Frequency Limit Variable 40 - 120 Hz @ 24 dB/Octave
Amplifier Output 200 Watts @ 1% THD+N
Amplifier Classification Class D amplifier with Switch mode power supply (SMPSU)
Bass EQ Profiles 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
Drive Unit Complement 1 x 10†(250 mm) C-CAM long throw driver 1 x 10†(250 mm) ABR
Input Impedance > 20 ohms
Mains Input Voltage AC 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")
Connection Stereo RCA in, LFE in, 12v Trigger in (3.5 mm mono mini-jack)
Trigger Input 5 - 12v via 3.5 mm mono mini-jack socket
Power Consumption 200 Watts / 0.5 Watts in Standby (ErP approved)
Weight (unpacked) 13.76 kg (30 lb 4 oz)
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