Monitor Audio Radius 4G One Bookshelf Speakers
Radius Series 4G seamlessly bridges residential and commercial environments, offering integrators and music lovers an elegantly engineered solution for any interior where premium design and true high-fidelity performance matter.
Designed for on-wall, desktop, wall-mount or stand-mount use, Radius fits seamlessly into any space, whether in commercial environments where design-led solutions matter, or at home around a TV or as unobtrusive room audio.
Features
- Refined fully vented C-CAM (Ceramic-Coated, Aluminium Magnesium) gold dome tweeter
- C-CAM cone featuring RST III (Rigid-Surface Technology) cone geometry; powerful and low-mass for superior strength and pistonic motion for true high-fidelity performance
- Through-bolt Technology to minimise driver fixings for the cleanest aesthetic design, whilst strengthening the cabinet and reducing unwanted resonances
- HiVe II port technology – up to 50% larger than previous Radius 90 speakers to allow greater control over airflow and turbulence reduction
- Beautifully finished cabinet finishes and accessories
Radius has never been more adaptable. Its flexibility is its strength: a perfectly considered form, subtle in appearance and premium in every detail, with a sound performance that is both immersive and impactful.
Drawing on Monitor Audio’s 40-plus years of metal-driver innovation, now refined into RST III, the same powerful motor systems and cone geometry found in our class-leading Silver Series 8G, Radius delivers an ultra-realistic, high-fidelity punch.
Expect clear, dynamic TV dialogue, cinematic energy for film soundtracks, refined fidelity for commercial spaces, or simply beautiful high-quality sound without the visual intrusion of larger loudspeakers.
Radius Series 4G – ideal for the integrator for projects that demand beautifully specified loudspeakers, or the perfect miniature hi-fi for the music lover.
Radius Series 4G is the standout choice.
Specifications
| Model: | Radius 1 |
| System Format: | 2-Way |
| Sensitivity (2.83V @ 1m, Free-Field): | 82 dB |
| Sensitivity (2.83V @ 1m, Installed): | N/A |
| Recommended Amplifier Power (RMS, Music Signal): | 50–100 W into 4 Ohms25–50 W into 8 Ohms |
| Continuous Power Handling (CTA 426-B): | 50 W |
| Nominal Impedance: | 8 Ohms |
| Minimum Impedance (20 Hz–20 kHz): | 3.8 Ohms @ 950 Hz |
| Drive Unit Complement: | 1 × 4" (102 mm) RST III bass-mid driver1 × 19 mm (¾") C-CAM Gold Dome tweeter |
| Frequency Response, Free-Field (-6 dB): | 100 Hz |
| Frequency Response, In-Room (-6 dB): | 100 Hz |
| Maximum Peak SPL (AES75, Z-Weighted): | 104 dB |
| Bass Alignment: | Sealed |
| Port Tuning Frequency: | N/A |
| Crossover Frequency: | LF/HF: 3.2 kHz |
| External Dimensions (H × W × D): | 135 × 135 × 156 mm(5 5/16 × 5 5/16 × 6 1/8") |
| Available Finishes: | High Gloss Black, Satin White |
| Sold As: | Pair |
| Weight (Each): | 1.8 kg (3 lb 15 oz) |
Original: $570.06
-65%$570.06
$199.52Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Radius Series 4G seamlessly bridges residential and commercial environments, offering integrators and music lovers an elegantly engineered solution for any interior where premium design and true high-fidelity performance matter.
Designed for on-wall, desktop, wall-mount or stand-mount use, Radius fits seamlessly into any space, whether in commercial environments where design-led solutions matter, or at home around a TV or as unobtrusive room audio.
Features
- Refined fully vented C-CAM (Ceramic-Coated, Aluminium Magnesium) gold dome tweeter
- C-CAM cone featuring RST III (Rigid-Surface Technology) cone geometry; powerful and low-mass for superior strength and pistonic motion for true high-fidelity performance
- Through-bolt Technology to minimise driver fixings for the cleanest aesthetic design, whilst strengthening the cabinet and reducing unwanted resonances
- HiVe II port technology – up to 50% larger than previous Radius 90 speakers to allow greater control over airflow and turbulence reduction
- Beautifully finished cabinet finishes and accessories
Radius has never been more adaptable. Its flexibility is its strength: a perfectly considered form, subtle in appearance and premium in every detail, with a sound performance that is both immersive and impactful.
Drawing on Monitor Audio’s 40-plus years of metal-driver innovation, now refined into RST III, the same powerful motor systems and cone geometry found in our class-leading Silver Series 8G, Radius delivers an ultra-realistic, high-fidelity punch.
Expect clear, dynamic TV dialogue, cinematic energy for film soundtracks, refined fidelity for commercial spaces, or simply beautiful high-quality sound without the visual intrusion of larger loudspeakers.
Radius Series 4G – ideal for the integrator for projects that demand beautifully specified loudspeakers, or the perfect miniature hi-fi for the music lover.
Radius Series 4G is the standout choice.
Specifications
| Model: | Radius 1 |
| System Format: | 2-Way |
| Sensitivity (2.83V @ 1m, Free-Field): | 82 dB |
| Sensitivity (2.83V @ 1m, Installed): | N/A |
| Recommended Amplifier Power (RMS, Music Signal): | 50–100 W into 4 Ohms25–50 W into 8 Ohms |
| Continuous Power Handling (CTA 426-B): | 50 W |
| Nominal Impedance: | 8 Ohms |
| Minimum Impedance (20 Hz–20 kHz): | 3.8 Ohms @ 950 Hz |
| Drive Unit Complement: | 1 × 4" (102 mm) RST III bass-mid driver1 × 19 mm (¾") C-CAM Gold Dome tweeter |
| Frequency Response, Free-Field (-6 dB): | 100 Hz |
| Frequency Response, In-Room (-6 dB): | 100 Hz |
| Maximum Peak SPL (AES75, Z-Weighted): | 104 dB |
| Bass Alignment: | Sealed |
| Port Tuning Frequency: | N/A |
| Crossover Frequency: | LF/HF: 3.2 kHz |
| External Dimensions (H × W × D): | 135 × 135 × 156 mm(5 5/16 × 5 5/16 × 6 1/8") |
| Available Finishes: | High Gloss Black, Satin White |
| Sold As: | Pair |
| Weight (Each): | 1.8 kg (3 lb 15 oz) |
