Radia R45 Floorstanding Loudspeakers (Pair) – Black
Flagship Floorstanding Speakers for High-End Systems
The Arcam Radia R45 is the flagship model in the Radia speaker range, designed for listeners who want scale, control and realism from both music and home cinema. Built to partner premium Radia stereo and AV amplifiers, the R45 delivers room-filling sound without sacrificing detail or balance.
Powerful 3-Way Driver Design
At the core of the R45 is a carefully engineered 3-way speaker layout. Three 165mm Micro Ceramic Composite (MCC) bass drivers provide deep, authoritative low frequencies, while a dedicated 165mm Deep Ceramic Composite (DCC) midrange driver handles vocals and instruments with clarity and precision. This separation ensures each frequency range is reproduced cleanly, even at higher listening levels.
DCC Tweeter with Acoustic Lens Waveguide
High frequencies are delivered by a 25mm DCC dome tweeter, mounted within Arcam’s Acoustic Lens waveguide. This design improves dispersion and integration with the midrange, creating a wide and natural soundstage. The result is a more immersive listening experience that remains consistent even when you’re not seated directly in the sweet spot.
Effortless Bass for Larger Rooms
With three dedicated bass woofers working together, the Radia R45 produces bass that is deep, controlled and impactful. Extending down to an impressive 30Hz, low-frequency performance is powerful enough to handle everything from cinematic soundtracks to live concert recordings without the immediate need for a subwoofer.
Precision Engineering Inside and Out
Internally, a high-grade 3-way crossover network using premium components ensures accurate timing and tonal balance across all five drivers. Over two decades of waveguide development and acoustic tuning come together to deliver sound that feels coherent, dynamic and natural.
The cabinet itself is rigidly braced to minimise unwanted resonance, helping preserve detail and control at all volumes.
Premium Finish and Timeless Design
Finished in an elegant Black Walnut veneer, the R45 blends modern detailing with a classic floorstanding profile. Subtle yellow accents reflect the Radia electronics styling, while hidden driver fixings and a magnetically attached grille keep the front panel clean and uncluttered. Solid aluminium feet with optional spikes provide stability on a variety of floor surfaces.
Part of the Radia Speaker Family
The Radia R45 is designed to integrate seamlessly into a wider Radia home cinema system. Matching centre speakers, standmounts and subwoofers allow you to build a cohesive multi-channel setup that looks refined and performs at a consistently high level.
Designed for Those Who Want More
Whether used for high-resolution music listening or immersive home cinema, the Arcam Radia R45 floorstanding speakers offer flagship performance with confidence and control. For listeners who value power, precision and long-term musical enjoyment, the R45 stands as a true centrepiece of any premium audio system.
| Type |
Floorstanding Loudspeaker |
| Cabinet Finish (Black Walnut) |
Black Natural Walnut Veneer |
| Recommended Amplifier Power |
20-250W |
| Low Frequency Driver |
3 x 6.5 in (165 mm) Micro Ceramic Composite (MCC) Cone with inverted surrounds in patented cast frames |
| Midrange Driver |
6.5 in (165 mm) Deep Ceramic Composite (DCC) with inverted surround in a patented cast frame |
| High Frequency Driver |
1-inch (25mm) Deep Ceramic Composite (DCC) Dome Tweeter in a patented waveguide with acoustic lens |
| Enclosure Tuning |
Bass-Reflex via Dual Rear-Mounted Ports |
| Crossover Frequencies |
275 Hz / 1.7 kHz |
| Nominal Impedance |
6 Ohms |
| Frequency Response ± 6dB |
30Hz-40kHz |
| Sensitivity @ 1M, 2.83V |
88 dB |
| Dimensions (WxDxH) |
358mm x 415mm x 1127mm |
| Weight (each) |
39.7kg |
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