Refurbish and Repair Cambridge R50s

cambridge_Audio_R50

The Legendary Cambridge Audio R50: A Masterclass in Transmission Line Engineering

Experience the scale and depth of one of British audio’s most iconic designs. Launched in 1971, the Cambridge Audio R50 remains a benchmark for audiophiles who demand effortless, natural bass and a transparent soundstage. Designed by the legendary B. J. Webb, these "seven-foot beasts" utilize a meticulously damped tapered labyrinth construction—traditionally filled with natural lambswool—to deliver a frequency response that reaches as low as 25Hz.The R50 is more than just a speaker; it is a landmark of high-fidelity history, renowned for its "stunning clarity" and the kind of deep, visceral bass that modern compact cabinets simply cannot replicate.

Restore the Original Majesty with Falcon Acoustics

The secret to the R50’s enduring performance lies in its prestigious driver complement. At Falcon Acoustics, we don’t just understand these classic components—we are their stewards.If your vintage R50s are showing their age, or if you are embarking on a restoration project, we provide the authentic, British-made drive units required to return them to their original factory specification. The R50 was famously built around the KEF "Concerto" driver grouping, and we are proud to offer the exact replacements designed by Malcolm Jones, the original designer of these legendary units:B139 Bass Driver: The world-renowned "racetrack" woofer. Our replacements ensure that the R50’s signature "tapered labyrinth" bass remains tight, authoritative, and warm without distortion.B110 Midrange Unit: The heart of the speaker’s legendary imaging. Our B110 units (8 ohm) provide the midrange openness and vocal realism that made the R50 a favorite for classical and jazz enthusiasts alike.T27 Tweeter: Essential for the R50’s high-frequency detail. These 19mm Melinex dome tweeters deliver a smooth, extended response that integrates perfectly with the mid and bass sections.

Why Choose Falcon for Your R50 Refurbishment?

As the primary source for authentic replacement drivers, Falcon Acoustics ensures that your refurbishment isn't just a repair—it's a restoration. Our units are hand-built and tested in Great Britain to the highest standards, ensuring your Cambridge Audio R50s continue to "move a lot of air" for decades to come.

Replacement Components

T27

B139

B110

The Cambridge Audio R50 is a legendary vintage monitor loudspeaker from the early 1970s

Cambridge Audio R50 Technical Specifications

Cambridge Audio R50 Technical Specifications

FeatureSpecification
System Type4-way Passive Monitor
Enclosure TypeTransmission Line
Frequency Response25 Hz – 25,000 Hz
Nominal Impedance8 Ohms
Crossover Frequencies400 Hz, 3,000 Hz, 10,000 Hz
Bass DriverKEF B139 (Oval)
Midrange DriverKEF B110
TweeterKEF T27
Super TweeterColes 4001
Dimensions105.5 cm x 44.8 cm x 33 cm
WeightApprox. 44 kg (97 lbs) per unit
The Specs for a Cambridge Audio R50