Monitor Audio Radius On-Wall 4G Speakers

Skip to product information

Monitor Audio Radius On-Wall 4G Speakers

Regular price $900.00
Sale price $900.00 Regular price
Please contact us to order

Transform TV and film sound with immersive, lifelike performance that brings every scene to life. With a slim, low-profile form and a clean, contemporary design, Radius On-Wall integrates seamlessly around a TV screen, delivering enhanced clarity, scale and impact without compromising on style. Simply add a matching subwoofer to unlock engaging, full-range impact that truly brings movies and entertainment to life.

Available July 2026

  • Free Shipping for orders $500+

A significant step forward in how we apply acoustic engineering within a compact form factor.

RST III Bass/Mid Driver & Motor System

The all-new RST III C-CAM cone and motor system in the Radius 4G represents a significant evolution in Monitor Audio's metal cone and driver technology. The bass/mid drivers have undergone full FEA optimisation, improving driver surround, spider and chassis design to reduce breakup and reduce resonances.
Larger magnets, improved voice coil, and enhanced venting, it delivers greater control, reduced distortion and improved dynamic range. Complementing this is the new C-CAM Gold Dome Tweeter with an optimised UD Waveguide, ensuring smooth, extended high frequencies, precise dispersion, and seamless integration with the RST III driver. The result is a speaker that offers remarkable clarity, punch, and immersive high-fidelity performance in a compact, versatile form.

Through-Bolt Driver Bracing

Through-bolt driver technology secures each driver directly to the cabinet via a tensioned bolt running through to the rear panel, allowing the drive units to be precisely braced and tightened to an exact torque. This creates a rigid, low-resonance structure that ensures both driver and cabinet remain structurally strong, significantly reducing unwanted chassis and cabinet vibrations. The result is lower colouration, improved clarity, tighter bass, and a more controlled, refined overall performance.

HiVe II Port Technology

The refined HiVe Il ports on Radius 4G are engineered to deliver cleaner, faster airflow, reducing turbulence and minimising unwanted chuffing. On the all-new Radius 3 model, the ports have been enlarged by 50% compared to the previous generation, further enhancing smooth airflow and delivering tighter, more controlled bass performance.

Crossover

The Radius 4G features carefully engineered crossovers, each is optimised to deliver seamless integration between the C-CAM Gold Dome Tweeter and RST III driver. Precision components ensure smooth, balanced frequency response, tight imaging, and coherent sound, allowing the speaker to reproduce music and dialogue with clarity, impact, and true high-fidelity accuracy.

Design-led Compact Performance

A focussed three-product, compact, design-focused speaker range engineered to blend seamlessly into contemporary interiors while maintaining high-performance audio.

Big Sound, Minimal Footprint

Utilises advanced driver technology to deliver clear, detailed sound with surprising scale from ultra-small enclosures, building on the series' legacy of high-fidelity performance.

Scalable for Any Space

Highly versatile system architecture, enabling everything from discreet stereo setups to full multi-channel home cinema configurations with matching subwoofers.

Who is this for?

Who is this for?

Frequently Asked Questions