Monitor Audio Radius 225


At just 65 mm in depth, the 225 is the perfect match with today’s ultra-thin displays. Use it as a centre channel or main speaker: its acoustic design of twin 4″ C-CAM mid/bass drivers astride a 1″ C-CAM tweeter delivers superb accuracy from horizontal and vertical positions.


Monitor Audio Radius 225

Monitor Audio Radius 225: The Technology

  • 4″ C-CAM bass driver – The Radius 225 by Monitor Audio features bass drivers with concave cone profiles.
  • The C-CAM bass drivers were introduced by our top-of-the-range Platinum speakers and subsequently applied to Gold GX.
  • Some highly extensive research and FEA modelling have therefore allowed us to perfect the relationship between the radiating diaphragm and its motor design.
  • Introducing larger motor sizes and voice coils so increasing excursion, higher power capability and as a result reduced distortion.
  • Featuring a C-CAM Gold Dome tweeter – optimised to deliver the finest and widest performance within the compact Radius cabinets.


  • It benefits from a more efficient rear-venting design, releasing air trapped and compressed at the back of the tweeter dome finally guiding it around the drive assembly to a rear-loading chamber.
  • HiVe II port design – Straight from Platinum’s design blueprint; the HiVe reflex port makes its debut on the Radius 225.
  • It is shaped to have the same effect on airflow as a gun-barrel on a bullet.
  • The rifled grooves inside the port therefore also help to accelerate the air flow and reduce turbulence; as a result the air moves in and out of the port more efficiently, consequently producing a faster, more dynamic bass response.

    Bolt-Through Driver Fixings:

  • Single through-bolt driver fixings providing not just mechanical de-coupling but also enhanced mid-band clarity and resolution.
  • The through-bolts also act as rigid cross bracing which results in a very solid non-resonating cabinet.
  • Futhermore the Monitor Audio Radius 225 comes complete with a dedicated wall bracket which as a result means it can be placed as a centre channel, a surround sound speaker or if you prefer; wall mounted.
    Choice of Finishes:
  • Available in a choice of finishes; smooth White satin, walnut real wood veneer and a high gloss black lacquer; there is a finish suitable for every room and surrounding!


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