• Dedicated Stand Dedicated Stand
  • Bookshelf Bookshelf
  • On Wall On Wall
  • GOLD C-CAM Tweeter GOLD C-CAM Tweeter
  • Footprint 100mm x 100mm
  • Driver size 3in
  • Bolt through driver Bolt through driver


Radius 45 technology
  • 3" MMP®II Driver. All drivers are dedicated and model specific, with each model in the Radius series being designed and voiced individually.
  • 3/4" gold C-CAM® tweeter, rear-firing to enhance sound dispersion characteristics
  • Single through-bolt driver fixing. Provides mechanical de-coupling properties resulting in enhanced mid-band clarity and resolution. Through-bolts also act as rigid cross bracing to give a very solid non-resonant cabinet.
  • Single point ¼"x20TPI wall fixing. Use the optional Monitor Audio speaker mount or any standard wall bracket
  • Optional floor-stand with internal (pre-wired) cable management system



Frequency Response

120Hz - 20KHz



Nominal  Impedance

8 Ohms

Power Handling Single (RMS)

25 Watts

System Power Handling (RMS)

50 Watts

Recommended Amplifier Requirements

15-50 Watts

Maximum SPL (dBA)


Bass Alignment

Sealed Cabinet

Driver complement

1 x 3" (75mm) MMP2® cone bass/mid-range Driver
1 x 3/4" (20mm) C-CAM® gold dome tweeter 

Cabinet Dimensions (H x W x D)

100 x 100 x 100mm
(315/16 x 315/16 x 315/16 Inches)

Cabinet Dimensions (H x W x D)(Inc Grille & Terminals)

100 x 100 x 124mm
(315/16 x 315/16 x 47/8 Inches)

Cabinet Dimensions (H x W x D)(Inc Grille & Bracket)

100 x 100 x 162mm
(315/16 x 315/16 x 63/8 Inches)


Optional - Monitor Audio Speaker Mount (MASM)


1kg (2lb 4oz)

Professional reviews

What Hi-Fi? Sound and Vision

Radius 45

September 2013

New Radius launches with five stars

The next generation of Radius has arrived, complete with new models, greater versatility and higher, wider, deeper sound. The eight-strong model line-up includes still slimmer versions of the 225 centre speaker and Radius One soundbar, together with a new Radius 200 centre-channel for shelf or rack mounting, and two enormously powerful yet super-compact active subwoofers: Radius 380 and 390.

And the re-energised line-up has already shown its quality by collecting five glorious stars from What Hi-Fi? Sound & Vision magazine. In its October 13 issue, the UK’s most dynamic forum for high value AV performance is suitably awed by the new Radius R90 HT1 package, starring the refreshed 90s, new 200 centre and bass-bulging R390 sub. It says “if you yearn for a discrete 5.1 set-up, this should be on your radar, because it’s a remarkable success…integration between fronts, rears and the sub is seamless. The surround field is gapless, effects flow between channels effortlessly and you’re immersed in the action…it (the 390) displays a potent combination of precision and weight with no fear of bottoming out or losing its grip”.

Living with great audio has never been easier.


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Speaker Mount

Purpose-built from aluminium to be strong, light, safe, easy to fit and to adjust, this stylish accessory will deliver the perfect effect on-ceiling or on-wall, aesthetically and sonically.

Download the bracket instructions