R25B (Coming Soon)

Subwoofer

The heartbeat of the Radia experience - where every rhythm finds its impact.

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Overview

The ARCAM R25B powered subwoofer delivers the low-frequency authority that completes any Radia loudspeaker system—bringing depth, weight, and cinematic impact to music and movies alike. Designed to blend seamlessly with the Radia Series, it reinforces your system with bass that is powerful, controlled, and beautifully expressive.

At its core is a 250mm (10-inch) high-excursion woofer, driven by a 750-watt digital amplifier for exceptional headroom and dynamic capability.

Its bass-reflex tuned enclosure, extensive tuning and connectivity options allow effortless integration into any room or Radia system, ensuring a smooth handover to your main loudspeakers.

The ARCAM R25B brings your audio to life—letting you feel every rhythm, every impact, and every atmospheric detail with stunning realism.

250mm (10-inch) Coated Fibre-Composite Cone Driver in a cast Aluminium frame for deep bass extension of every rhythm and impact throughout your room
750 watt RMS (1,500 watt peak) Class D amplifier for limitless low-frequency authority that complements any loudspeaker system
Volume, Crossover and Phase Controls for a simple and flexible configuration for setup with your speakers
Inverted surround and trim ring cover both to conceal the hardware for a sleek aesthetic, and reduce damaging high frequency cabinet diffraction
Magnetically attached grille for a clean, seamless look with no visible attachments

Technical spec

Type:: Subwoofer

Cabinet Finish (Black Walnut): Black Natural Walnut Veneer

Driver: 250mm (10-inch) Coated Fibre-Composite Cone Driver in a cast Aluminium frame

Amplifier Power: 750-Watt RMS/1500-Watt Peak Power

Inputs: RCA LFE/Line Level, 3.5mm 12V Trigger

Controls: Auto Power, Crossover, Level, Phase

Crossover Frequencies: 50Hz-150Hz (variable) 24dB/octave

Enclosure Tuning: Bass-Reflex via Rear-Mounted Port

Frequency Response ± 6dB: 26Hz-150Hz

Mains voltage (V/Hz): 100–120V or 220–240V, 50–60Hz

Power consumption (W): 205W