Leak Sandwich 600 Speakers

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Leak Sandwich 600 Speakers

If you buy after clicking affiliate links on this site we might receive a commission from companies such as eBay, Amazon etc This does not affect the price you pay.
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Leak Sandwich 600 Speakers. Two speakers in very good condition. Teak cabinets are solid and good. The photo shows some marking on the top surface of one of the speakers but not extensive. These speakers have been in my family from new and only seen light home use. Originally purchased directly from the Rank Wharfedale HQ in Idle, Bradford in approx. 1980.  

 

 

The floor standing speakers are very heavy and large providing excellent rich sound throughout the range.

 
 

 

Size 38cm x 65cm x 33cm

 

 

See separate listing for Leak Delta 75 Tuner/Amplifier purchased at the same time.

 

 

From smoke-free house

 

UK Sales Only

 

 

The LEAK Sandwich was an innovative loudspeaker design introduced by the English hi-fi company H. J. Leak & Co. in 1961. Harold Leak engaged Don Barlow, who had devised a way of making the cone of the loudspeaker from expanded polystyrene foam sandwiched between two sheets of aluminium foil. This made it both very light and extremely stiff, and correspondingly accurate in sound. Contemporary publicity photographs show Harold standing calmly on top of one of his sandwich cones to demonstrate its exceptional rigidity. The speaker was innovative in other ways as well and was produced, relatively unchanged, for about 10 years.The original Leak ‘Sandwich’ hi-fi speaker was a large two-way system employing a 330 mm (13″) low frequency element, with the sandwich cone, cambric roll suspension, and cast aluminium chassis. As was common at the time, the 75mm (3″) high frequency unit was a miniature version of the woofer, and was mounted onto the grille assembly, so fitted neatly into its own foam lined cavity on the face of the 60 litre bass enclosure. A large wood block was bolted between the back of the woofer magnet and the back panel of the enclosure, as a structural brace, a technique later used by other manufacturers. Crossover network components were attached onto three sides of this block. Since it was designed for use with tube amplifiers, the system was rated at 15 Ohms. The ‘Sandwich 200’ model had a 200 mm (8″) version of Barlow’s foam-and-foil sandwich driver, together with two 60mm (2.3″) purple Mylar coned elements, one employed as a midrange, and the other as a tweeter. This smaller model was a great commercial and critical success for Leak, and was produced for some years. Since transistorized amplifiers had become more common by this time, it was rated at a more contemporary 4~8 Ohms, with power handling of 18 watts.

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Category: Sound and Vision:Home Audio and HiFi Separates:Speakers and Subwoofers
Location: Oakham