Vintage

When the BC III was launched in 1973, Spendor’s ads described it as ‘An extension and refinement of theBC I and BC II’, while Thomas Heinitz, doyen of hi-fi consultants in those days, could not resist using the headline‘Hey, big Spendor’. The BC III was rooted in Spencer Hughes’ work at the BBC: he was part of the legendary BBC research team, working under both D E L Shorter and H D Harwood. It had an 8in driver with 40mm voice-coil, working in its own sealed chamber as a midrange unit while the 12in bass unit was reflex-loaded by a carefully designed port. The crossover point was 700Hz.

The ancestor of a modern classic still has much to commend it Author of a couple of 1967-8 HFN features comparing the operation of output stages in Class A and AB transistor amplifiers, Jim Sugden then owned a company producing lab and test equipment. But thanks to a collaboration with Richard Allan, a company making speakers based nearby in Yorkshire, the first Class A amplifier made by Sugden was marketed under the Richard Allan name. The A21 amplifier made its first public appearance at the ’68 London Audio Fair in London. A 10W-per-channel integrated, it sold for £52, like Leak’s Stereo 30.

The first solid-state Quad remains a classic of the genre Exemplifying all that was admirable in British hi-fi, the 33 preamp (£43) and 303 power amp (£55) were Quad’s first commercial solid-state offerings, the company having waited for the new-fangled transistor to settle down before embracing it in 1967. It was in many ways ‘a solid-state Quad 22’. Any previous customer would have immediately recognised the control locations, the flushmounted rotaries, the balance control under the volume control, the press buttons that also offered Quad’s unique, fully cancellable filter and tone controls and RIAA selectors. In size, the 303 and the Quad II power amps were nearly interchangeable.

As well as looking impressive, the Series 3 included some interesting features When JBE unveiled its Slatedeck in the late 1970s, it wasn’t just a turntable different for its time. It was a design that remains radical to this very day. Not only did its looks set it aside from its contemporaries (slightly Kubrick 2001 to our eyes) but it featured such niceties as a Japanese-sourced direct-drive motor system with a variable-pitch outboard electronic power supply – years before anyone else in the UK offered one at this price point. Construction was also unique, the solid non-sprung plinth was either manufactured from clear plastic acrylic, or (in sonic preference and name) slate quarried from North Wales.

With the introduction of stereo LPs in 1958, Leak wasted no time in bringing stereo equipment to market. The fi rst public demonstration of the Stereo 20 amp and matching preamp took place in April 1958 at the Audio Fair in London. This must have been quite a coupe for Leak as most rival manufacturers at the show were demonstrating mono equipment. The price of the Stereo 20 was 29 Guineas with its partnering Point One stereo preamp costing 20 Guineas.

In 1955 Wireless World published articles by Quad’s Peter Walker on the practical and theoretical aspects of making a full range electrostatic speaker. That year, he demonstrated two different prototypes developing one for the first public demonstration at the 1956 Audio Fair. Due credit must be given to Walker for the huge amount of pioneering work involved and the brave decision to make it a commercial product. When first introduced, a single ESL would have set you back £52, yet demand was far greater than supply.