A compact two-way speaker pair from Monitor Audio with a 4 inch C-CAM RST III bass-mid driver and a 19 mm C-CAM Gold Dome tweeter. It suits stereo, AV, surround and multi-room systems and comes in Satin White or High Gloss Black.
Monitor Audio says the Radius 1 4G is ideal for discreet AV, surround or multi-room sound systems, with mounting options for wall, desktop or floor stand through compatible accessories.
See the Radius Series 4G
Why you will love it
Big sound from a small cabinet
A newly designed 4 inch C-CAM RST III bass-mid driver is paired with a fully vented 19 mm C-CAM Gold Dome tweeter. Monitor Audio says this produces precise, lifelike sound with controlled dispersion and low distortion.
Other details Monitor Audio lists include a new crossover design, through-bolt driver bracing and HiVe II ports.
Two finishes
The Radius 1 4G comes in High Gloss Black or Satin White, and is sold as a pair.
Mounting and system use
Monitor Audio says the speaker suits discreet AV, surround and multi-room installations, with wall, desktop or floor stand mounting through compatible accessories. The MASM and FIX-M MAG brackets are listed as compatible.
Radius Floor Stand 4G and Radius Desk Pad 4G accessories are listed with the speaker. Monitor Audio says you can add one of its subwoofers for full-range performance.

Is it right for you?
A great fit if you…
- Want a very compact speaker pair for stereo, surround or multi-room use
- Plan to mount on a wall, desk or stand
- Have an amplifier that suits 8 ohm speakers (minimum impedance 3.8 ohms)
Worth knowing
- The cabinet is sealed, so bass reaches 100 Hz in-room (-6 dB). Monitor Audio suggests adding a subwoofer for full range
- Monitor Audio recommends 25-50 W into 8 ohms or 50-100 W into 4 ohms
- Stands, desk pads and brackets are separate accessories
- Sold as a pair
Build your system
- Amplification: Drive them with a stereo amplifier or AV receiver.
- Bass: Add a subwoofer for the low end.
- Stands: Browse speaker stands or see other bookshelf speakers.
Specifications
Speaker
| System format | 2-way |
|---|---|
| Frequency response, in-room (-6 dB) | 100 Hz-35 kHz |
| Sensitivity (2.83 Vrms at 1 m, free-field) | 82 dB |
| Nominal impedance | 8 ohms |
| Minimum impedance (20 Hz to 20 kHz) | 3.8 ohms at 950 Hz |
| Maximum peak SPL (AES75, Z-weighted) | 104 dB |
| Continuous power handling (CTA 426-B) | 50 W |
| Recommended amplifier power (RMS, music signal) | 50-100 W into 4 ohms, 25-50 W into 8 ohms |
| Bass alignment | Sealed |
| Crossover frequency (LF/HF) | 3.2 kHz |
| Drive units | 1 x 4" RST III bass-mid driver, 1 x 19 mm C-CAM Gold Dome tweeter |
General
| Finishes | High Gloss Black, Satin White |
|---|---|
| Dimensions with all accessories fitted (H x W x D) | 135 x 135 x 156 mm (5 5/16 x 5 5/16 x 6 1/8 in) |
| Weight (each) | 1.8 kg (3 lb 15 oz) |
| Sold as | Pair |
| Compatible MAG brackets | MASM, FIX-M |
Specifications from Monitor Audio's Radius 1 4G product page.
Questions people ask
Are they sold as a pair?
Yes, according to Monitor Audio.
What finishes are there?
High Gloss Black and Satin White.
Can I wall or desk mount them?
Monitor Audio says wall, desktop and floor stand mounting is possible with compatible accessories, including the MASM and FIX-M brackets.
Do I need a subwoofer?
Monitor Audio lists a low-frequency response of 100 Hz in-room (-6 dB) and suggests adding one of its subwoofers for full-range performance.