Monitor Audio’s Radius Series 4G is a redesigned generation of one of the company’s compact speaker ranges, developed under its Transparent Design Philosophy. It is aimed at residential and commercial installations, with stated applications spanning stereo listening, multichannel home cinema, multi-room audio, commercial systems and near-field desktop use.
The range consists of three speakers: Radius 1, Radius 3 and Radius On-Wall. Its driver platform continues to use C-CAM cone technology, now paired with a new RST III cone geometry intended to reduce breakup and resonance across the frequency range. The series also adds a redesigned C-CAM Gold Dome tweeter with an external magnet motor system, plus a new crossover. Cabinet construction includes through-bolt driver bracing and HiVe II porting, with the Radius 3 receiving a port that is 50 percent larger than the previous generation.
Matching accessories extend the installation options: a Floor Stand with wooden tripod legs and cable routing to the base, a rubber Desk Pad with vibration isolation and a slight upward tilt, the MASM wall bracket for Radius 1 and the FIX-M bracket for Radius 3. That supporting hardware makes the series practical for projects where compact speakers need to cover different mounting positions and listening distances within one system family. Radius Series 4G is scheduled to be available from June 2026.