KEF Concerto - Mar 21 - Retrotech Audio - Vintage Audio

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KEF Concerto - Mar 21

Current For Sale

Pair of KEF Concerto
Vintage British Monitors


Pair of KEF Concerto

Vintage British Monitors

If you’ve never heard a pair of these before then you’re in for a treat. These sound fabulous, with amazing & effortless bass extension provided by the B139 bass drivers, accurate mid-band from the B110 Bass/Mid drivers and sweet, sweet treble from the T27 tweeters.

The cabinets themselves are good and solid, with some surface blemishes in line with their age (see close-up pictures).

The following from the excellent KEF museum website:-

CONCERTO (1969-77)

The Concerto, released in 1969, was KEF’s latest high quality three-way loudspeaker system. It maintained the KEF practice in high end systems of using a dedicated midrange driver to cover the critical vocal range, in this case the newly developed 5” bextrene coned B110. Together with the new T27 ¾” melinex domed tweeter and the established B139 bass driver, it offered full range reproduction with low distortion, high power capacity and wide dispersion. Intended for professionals and serious enthusiasts, the Concerto became a major success and remained in production until 1977 when it was superseded by the Cantata.


• System type: Three-way, floor standing
• Enclosure type: Reflex
• Size: 28 x 17 x 12 inches (711 x 432 x 305 mm)
• Weight: 50 lb (22.7kg)
• Input impedance: 8 ohms
• Power rating: 30W
• Crossover frequencies: 400, 3500Hz
• Frequency range: 30-30,000Hz
• Drive units: B139 bass unit, B110 midrange unit, T27 tweeter

The last picture is from the 1973 Hi-Fi Year Book.

£295 (GBP) pair

Payment accepted via PayPal, Bank Transfer, Personal Cheque or cash on collection.

These a large and very heavy so personal collection would seem a sensible option. Alternatively we can offer free personal delivery within 50 miles of CR3 5UF


Please contact us either by telephone on 01883 340073
or by sending and email to
if you are interested in purchasing this item.


Linn, Quad, Tannoy, Revox, Arcam, Musical Fidelity, SME, Rogers, Spendor, Garrard, Leak, Thorens, KEF, Meridian, Lecson, Mission, Michell, Sudgen, Nakamichi, Radford, Armstrong, Bowers & Wilkins, Celestion, Exposure, Gale, IMF, Beard, Audio Innovations J.R., Etc…etc…

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