The Vox stand at the BMII fair, late August, 1967. Detail from a slightly larger original.

Above, part of the Vox stand at the "British Musical Instrument Industries" Trade Fair, held at the Russell Hotel, London, 20th-24th August, 1967. Note in the background the DJ console and coloured lights. At left is the Gyrotone IV rotating speaker cabinet with a PA amplifier on top. In the centre of the picture, a floor-standing horn unit with chrome side stands.

Psychedelic Lights

Reg Clarke, General Sales Manager of Vox, describes the psychedelic lights developed by Vox (Jennings Musical Industries), reported by the Sydney Morning Herald, 3rd December, 1967.

They were sold off by "Vox Sound Equipment Limited", the company that succeeded JMI, in July 1968.


"Sydney Morning Herald", 3rd December, 1967.

"Melody Maker" magazine, 20th July, 1968, small ads. The Vox Works were in Erith.

DJ Console

In company with the lights, the DJ console was also sold off in 1968 (see immediately above). The idea was revived, however, in 1971 in the shape of the "Vox Discotheque" later renamed the "Vox Discotape" - .

Horn unit

A detail of the cabinet on the floor in the foreground of the larger picture above. Note its angled front. The grille cloth is 5 1/2 diamonds tall.

Below, a horn unit, said to have been one of two originals, similar in format to the unit exhibited at the Russell Hotel in August '67. Note that the grille cloth is 4 1/2 diamonds tall though. The width of the unit is the same as a Supreme cab.

The horns are Celestion T1436, 3ohms each, the five adding up to a total of 15ohms, the normal impedance of the solid state range. One of the drivers is marked in ink 22/12/1966. The other four have date codes "15HM" = 15th August 1967.

The plaque is hand-stamped - serial number "S1001", the impedance given as 15ohms. Note that the jack socket has a white ceramic surround, as early Conquerors, Defiants and Supremes, etc.

Gyrotone IV

Never made in large numbers, the unit was quickly deleted from the catalogue. The double-angled front must have been time consuming and costly to produce. On Gyrotones in general, .


A detail from the photo of the JMI stand at the Russell Hotel, 20th-24th August, 1967. Just visible on the amplifier is the legend "VOX PA 50". The unit was not put into production by Vox. It was, however, produced by JEI, the company founded by Dick Denney and Tom Jennings after they had been sacked from JMI.

Above, an early PA 100 made by JEI - Jennings Electronic Industries in mid 1968. Presumably Denney and Jennings took away with them certain designs that Vox had decided not to produce.

The PA amps in the solid state catalogue of mid 1967 were evidently not put into production by Vox either - at least, no surviving examples are known.