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LoudspeakersSubwoofersDiscontinued
Estimated price (community-sourced)
$875
Around — community and catalog average, updates slowly
About the Britannia B3
The Britannia B3 is the smallest model in REL’s Britannia subwoofer series. It uses a front-firing 250 mm long-throw driver and an ARM (Acoustic Resistive Matrix) port-loading system, with a 200 W RMS DC-coupled MOSFET amplifier. Its controls provide separate level adjustment for high- and low-level inputs and adjustable low-pass filtering; REL’s high-level connection is designed to take a signal from the main amplifier’s speaker outputs. The B3 has a 30 mm MDF cabinet and was offered in veneered and textured finishes.
Specifications
Type: Active ARM-loaded, ported subwoofer
Driver: 250 mm (10 in) long-throw
Amplifier: 200 W RMS, DC-coupled MOSFET
Frequency response: Manufacturer manual lists in-room response at -6 dB; exact B3 figure not available in the retrieved specifications
Crossover: Adjustable low-pass filter, approximately 22–96 Hz
Phase: 0° / 180°
Inputs: Neutrik Speakon high-level inputs; twin phono low-level inputs (0 dB and +12 dB); no XLR balanced input on B3
Cabinet: 30 mm MDF
Port: 72 mm ARM port
High-level input impedance: 100 kΩ
Low-level input impedance: 10 kΩ