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Thumbs aloft, then, for this fine new small speaker. Monitor Audio’s Radius range has acquired something of a cult following among space-limited audiophiles on a budget, and the Radius 3 4G looks set to grow it further. A meaningful improvement on the already capable third-generation Radius 90 it replaces, it is my new favourite baby monitor. It doesn’t so much change the laws of physics as look the other way. stereonet
Specifications
| System Format | 2-Way |
| Frequency Response, In-Room (-6dB) | 44 Hz — 35 kHz |
| Sensitivity (2.83 Vrms @ 1m, Free-Field) | 84 dB |
| Sensitivity (2.83 Vrms @ 1m, Installed) | N/A |
| 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 | 1x 41/2" RST III bass-mid driver |
| 1x 25 mm C-CAM Gold Dome tweeter | |
| Finishes | High Gloss Black |
| Satin White | |
| External Dimensions with all accessories fitted (H x W x D) | 255 x 150 x 201 mm (101/16 x 57/8 x 715/16") |
| Weight (each) | 3.7 kg (8 lb 3 oz) |
| Sold As | Pair |
| Warranty | 5 years |
| Compatible MAG Brackets | FIX-M |
Warranty
Shipping & Returns
We offer free shipping on any order over $150. For full details please see our Shipping Policy.
Our returns policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately, we may not be able to offer you a refund or exchange. For full details please see our Refund Policy.

TELL ME MORE ABOUT THE
Monitor Audio Radius 3 (4G) Bookshelf Speakers

Exceptional High-Fidelity Audio Performance

Compact Design & Surpris-ingly Powerful Sound

Flexible Installation for Any Room

Premium Engineering for Clean and Accurate Sound

Excellent Compatibility with Modern Audio Systems

Stylish Finish with Long-Term Reliability
Thumbs aloft, then, for this fine new small speaker. Monitor Audio’s Radius range has acquired something of a cult following among space-limited audiophiles on a budget, and the Radius 3 4G looks set to grow it further. A meaningful improvement on the already capable third-generation Radius 90 it replaces, it is my new favourite baby monitor. It doesn’t so much change the laws of physics as look the other way.

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