Monitor Audio Radius 3 4G Compact Bookshelf Speakers (Pair), High Gloss Black
Monitor Audio Radius 3 4G Compact Bookshelf Speakers (Pair), High Gloss Black Overview
The Monitor Audio Radius 3 4G Compact Bookshelf Speakers (Pair), are designed for compact hi-fi, TV, gaming, surround, and multi-room systems where a small speaker still needs confident output. Its two-way design combines a 4.5-inch C-CAM bass-mid driver with RST III geometry and a 25mm C-CAM Gold Dome tweeter, giving it a more capable presentation than its compact cabinet suggests.
With 75W continuous power handling, 84dB sensitivity, and a 44Hz to 35kHz in-room frequency response, the Radius 3 4G is well suited to desktop listening, stereo pairs, AV channels, and discreet commercial installs. Its ported cabinet uses HiVe II technology to support faster airflow and stronger low-frequency response, while compatibility with the FIX-M wall bracket, Radius Desk Pad, and Radius Floor Stand gives it useful placement flexibility.
Product Ref: 382271
Full Description
View Full DescriptionRST III C-CAM Driver Technology
The Radius 3 uses a 4.5-inch C-CAM bass/mid driver with RST III cone geometry, giving the cone added stiffness while keeping weight low. This matters because the driver can start and stop more accurately, helping voices sound clearer and bass notes feel better controlled. The improved motor system supports smoother movement, reducing distortion when film soundtracks or music become busier. Lower resonance and reduced breakup also help the speaker keep detail intact, making it a strong choice for compact front, centre or surround positions in smaller rooms.
C-CAM Gold Dome Tweeter
The Radius 3 is fitted with a 25mm C-CAM Gold Dome tweeter, giving it a larger treble unit than the Radius 1 for greater headroom. Its vented construction helps the dome breathe more freely, which reduces compression and keeps higher frequencies cleaner at everyday listening levels. The UD Waveguide controls how treble leaves the speaker, spreading detail more evenly across the seating area. This makes dialogue, effects and instruments easier to follow, while helping the tweeter blend smoothly with the 4.5-inch bass/mid driver for consistent balance overall.
Ported Cabinet And Placement
The Radius 3 cabinet is built to make placement simple, whether you use it near a television, on furniture, or as part of a compact surround system. Through-bolt bracing tightens the structure, reducing cabinet vibration so more of what you hear comes from the drivers rather than the box. Its crossover is carefully integrated to manage the handover between bass/mid and treble, giving a more coherent presentation. HiVe II port technology also improves airflow, helping bass remain responsive without making the cabinet larger than necessary at home.
Specifications
| Model | Radius 3 4G |
|---|---|
| System Format | 2-Way |
| Frequency Response | 44 Hz – 35 kHz |
| Sensitivity | 84 dB (2.83Vrms @ 1m, Free-Field) |
| Nominal Impedance | 8 Ohms |
| Minimum Impedance | 4.0 Ohms @ 250 Hz |
| Maximum Peak SPL | 107 dB |
| Continuous Power Handling | 75 W |
| Recommended Amplifier Power | 75 – 150 W Into 4 Ohms40 – 75 W Into 8 Ohms |
| Bass Alignment | Ported |
| Port Tuning Frequency | 53 Hz |
| Crossover Frequency | 2.7 kHz |
| Drive Unit Complement | 1 × 4.5 Inch RST III Bass-Mid Driver1 × 25 mm C-CAM Gold Dome Tweeter |
| Dimensions (W × H × D) | 255 × 150 × 201 mm |
| Weight | 3.7 kg |
| Product Code | SRAD4G3B |
| EAN | 5061070620746 |
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