# Monitor Audio Radius 3 4G Bookshelf Speakers (Pair)

The Monitor Audio Radius 3 4G is a high-performance mini-monitor speaker built for TV, film, music, gaming and multi-room applications.

A 4.5-inch C-CAM RST III bass/mid driver pairs with a 25 mm C-CAM Gold Dome tweeter, each powered by its own optimised motor system, to produce expansive, detailed sound far beyond what its compact dimensions suggest.

Through-bolt driver bracing, HiVe II port technology and a precision-engineered crossover work together to deliver tight bass, controlled dispersion and exceptional clarity across the frequency range.

Flexible wall, desktop or floor stand mounting makes the Radius 3 4G easy to integrate into any residential or commercial space, and pairing it with a Monitor Audio subwoofer unlocks truly full-range performance.

-   **Dual-Motor Driver System:** A 4.5-inch C-CAM RST III bass/mid driver and 25 mm C-CAM Gold Dome tweeter, each with its own optimised motor, deliver detailed sound with real dynamic headroom.
-   **New Crossover Design:** Precision-engineered for the 4G generation to improve integration between the driver and tweeter.
-   **Through-Bolt Driver Bracing:** Reinforces the driver mounting for a more rigid, resonance-free cabinet.
-   **HiVe II Ports:** Reduce turbulence and port noise for cleaner, more controlled bass.
-   **Flexible Mounting:** Wall, desktop or floor stand options via compatible FIX-M brackets suit both residential and commercial installations.
-   **Subwoofer Ready:** Pair with a Monitor Audio subwoofer for genuinely full-range performance.

###### Specifications

-   **System Format:** 2-Way
-   **Frequency Response, In-Room (-6dB):** 44 Hz - 35 kHz
-   **Sensitivity (2.83 Vrms @ 1m, Free-Field):** 84 dB
-   **Nominal Impedance:** 8 Ohms
-   **Minimum Impedance (20 Hz to 20 kHz):** 4 Ohms @ 250 Hz
-   **Maximum Peak SPL (AES75, Z-weighted):** 107 dB
-   **Continuous Power Handling (CTA 426-B):** 75 W
-   **Recommended Amplifier Power (RMS, Music Signal):** 75-150 W into 4 Ohms, 40-75 W into 8 Ohms
-   **Bass Alignment:** Ported
-   **Port Tuning Frequency:** 53 Hz
-   **Crossover Frequency:** LF/HF: 2.7 kHz
-   **Drive Unit Complement:** 1× 4.5" RST III bass-mid driver, 1× 25 mm C-CAM Gold Dome tweeter
-   **Finishes:** High Gloss Black, Satin White
-   **External Dimensions (H × W × D):** 255 × 150 × 201 mm
-   **Weight (each):** 3.7 kg
-   **Sold As:** Pair
-   **Warranty:** 5 years
-   **Compatible MAG Brackets:** FIX-M

###### What You Get

-   2 x Radius 4 Speakers

## Details

- **Price:** 575.0 GBP
- **Vendor:** Monitor Audio
- **Type:** Bookshelf Speakers
- **Tags:** New

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Black | 575.00 GBP | In stock |
| White | 575.00 GBP | In stock |

## Images

- Monitor Audio Radius 3 4G Bookshelf Speakers (Pair) Bookshelf Speakers Monitor Audio Black 
- Monitor Audio Radius 3 4G Bookshelf Speakers (Pair) Bookshelf Speakers Monitor Audio White 
- Monitor Audio Radius 3 4G Bookshelf Speakers (Pair) Bookshelf Speakers Monitor Audio 
- Monitor Audio Radius 3 4G Bookshelf Speakers (Pair) Bookshelf Speakers Monitor Audio 
- Monitor Audio Radius 3 4G Bookshelf Speakers (Pair) Bookshelf Speakers Monitor Audio 
- Monitor Audio Radius 3 4G Bookshelf Speakers (Pair) Bookshelf Speakers Monitor Audio 

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> Source: [K&B Audio](https://www.kbaudio.co.uk/products/monitor-audio-radius-3-4g-bookshelf-speakers-pair)
> Updated: 2026-08-05