List of updates / new info. on Vox solid state amps (1967-1972)


31st December

The page on has been extensively updated. Further info and examples to follow.

29th December

A new page is taking shape on the produced by Vox / Jennings Musical Industries in 1967. These were made at the Vox / Burndept Works in Erith alongside the solid state amplifiers.

27th December

Above, a Jennings Musical Industries Wah Wah pedal from early 1967. The yellow Lemco capacitor has the date code "YB" = February 1967. See for more on date codes. These Lemcos were also used in the early standard production solid state amps.

26th December

The page on 12" Goodmans ceramic speakers has been tidied up. These were regularly used in preference to Celestions from the autumn of 1967, though Celestions were still adopted in small batches through to end of days in 1973. Celestions are most common later on in Multi-Link speaker cabs, and the Companion and Supreme speaker cabinets that were not provided with Goodmans horns.

23rd December

A page from a Vox pricelist for Trade of June 1972. Here and there, the retail prices are annotated. The Supreme cabinet, still offered with two horns, is the most expensive item on the page.

22nd December

The front cover of the brochure printed for the German market in September 1967 (IX/67 at foot) but bearing the date 1968 - the standard image of the pre-production Supreme:

Vox catalogue/brochure printed for the German market in September 1967

21st December

One more pic of Denney at the Trade Fair, along with a New Escort Special and effects box (click for the larger image):

20th December

A further pic of Dick Denney at the BMI Trade Fair, late August 1967, shown with his Vox Escort Special:

Dick Denney at the British Musical Instrument Trade Fair 21st to 24th August, 1967

New built-in electronics were the thing - see Gary Hurst's review of the show - entry for 13th December, lower down this page.

What to make of the flyer below? - sold on ebay in March 2013 - presumably genuine - if not, a very peculiar thing to invent.

Described as being a "handbill", 7 7/8" X 4 7/8". It seems likely that such shows were arranged in early 1967 primarily to advertise the new solid state range - at this date, the pre-production amps. In other words these formed part of the testing process that culminated in the redesign of the control panels among other things.

19th December

A shot taken at the British Musical Instrument Trade Fair, 21-24 August 1967. See the entry below for 13th December.

16th December

Just to highlight again the amps specially designated for export to Denmark in late 1969 by "Vox Sound Equipment Limited". Above, Dynamic Bass serial no. 2221.

The Dynamic Bass was "C2", Conqueror "C1", Foundation Bass "B2", Defiant "B1", Super Foundation Bass "A2", and Supreme "A1".

14th December

Below, pictures from the Daily Express Record Star show, Empire Pool, Wembley, 29th March 1968, the backline provided by Vox, as it had been for the All Stars show at Wembley, 16th April 1967 - see this page. The amps were used by all but a very few bands on the bill.

The day's events are outlined here. The show was televised by a BBC outside broadcast unit.

On stage, there are three Supremes, a Foundation Bass, a Super Foundation Bass, an AC100 and AC30.

The Easybeats

Simon Dupree and the Big Sound

Dave Dee, Dozy, Beaky, Mick and Tich; The Spencer Davis Group (using Marshalls); and The Move. Pictures taken by Ronny Thorpe. There were others too, but since the disappearance of his website some years, none have resurfaced.

13th December (3)

The four amps above currently on sale in Italy. The Virtuoso is JMI. The Conqueror amp is mid/late JMI with an early VSEL cab. The Defiant and cab is early VSEL. The Supreme, with original tilt-back stand, is late VSEL / early VSL.

13th December (2)

Pictures of a single-speaker "Vox Sound Equipment Limited" single-speaker Super Foundation Bass cab have been .

13th December

Beat Instrumental magazine, October 1967 - from Gary Hurst's report of the British Musical Instrument Trade Fair, Russell Hotel. The amplifier is a Defiant.

Note that the article gives *peak* power output for the amplifiers.

10th December

The ("prototypes" is really to stretch the meaning) Vox solid state amps now tidied up. No sign so far of a surviving pre-production Supreme - is the one issued to Manfred Mann along with a 4120/7120 cab out there somewhere? - but try-out versions of all the other models in the range exist.

9th December

Above, the power socket on a pre-production Defiant currently in the UK. Modern (and 1970s) US connectors look as though they should fit, but don't, being among other things, 1/4" too large. It has been a real pain trying to find an old one that does.

However, through Ebay in the States, it has been possible to find an original - made by Amphenol. The socket section was always supplied separately - ie. without the shrouding body - in two forms: loose (part no. 160-10N), or on a steel mounting plate (part no. 160-2N). The steel mounting plate is easily removed. The body, which also fits a loose (male) plug section (part no. 160-11N), came separately too: part no. unknown at present. The socket on the amp by the way is part no. 160-5N.

Amphenol had a factory at Whitstable, down the Kent coast from Erith, and it was presumably from there - or at least via the factory there - that the assemblies came. Whether they were stocked at all widely in British electrical shops in the 1960s seems highly doubtful - perhaps the larger shops in big cities had one or two for US-made radios - but no more than that. Lose the cable and the amp was pretty much dead in the water.

Manfred Mann managed to hang on to his though. Below a pic of his pre-production Supreme plugged in, Berlin 1967:

Manfred Mann with a pre-production Vox Supreme

Observe where the mains cable plugs in - far right at back. On standard production amps the socket is close to the middle.

2nd December (4)

Two early JMI Conquerors currently on sale in France - one with fixing mounts on the cab, the other with side stands. The first is serial no. 114x, the second serial no. 1118:

Early Vox Conqueror

2nd December (3)

The plate of Vox Defiant serial number 2802, Vox Sound Limited, close to the end of the run. The amp, along with its cab (which retained one original Goodmans Power range speaker and the Midax horn), had spent some time in Sweden.

Vox Sound Limited Defiant serial number 2802

2nd December (2)

Below, a "Vox Sound Equipment Limited" Conqueror rig with a full set of covers:

Conqueror covers, a little surprisingly perhaps, are quite scarce (scarcer than those for Defiants). Early on, solid state amps came from the factory with covers supplied as a matter of course. Later they had to be bought separately.

2nd December

The serial number plate of Defiant no. 1487 recently registered, with legend "AMPLIFIER" rather than "VOX AMPLIFIER".

Below, pictures of a Defiant from a litte while ago:

Nice to see original covers. Five sets are currently known - this, 1102, 1332, and two now in the States (though of course there could be more). Note the blue inspection tag on the side stand. The speakers have Vox Sound Equipment Limited labels indicating a date probably in late 1968/early 1969. Further pics will be posted on the main pages in the next few days.

Also to signal another Defiant, sold on Facebook (from Scandanavia) earlier this year.

Probably not too far removed in date from the one above. Note the metal hoods over the castors - similar ones occur on Conqueror serial number 2050 and Conqueror no. 2082. They were evidently used for a short time in the early VSEL period, perhaps late JMI too.

Metal hooded castors are also shown in the early brochures issued by JMI for the solid state range - but these are very "space age" in appearance. No real-world examples have so far come to light.

Just to add that there were two types of assembly for fixing Conqueror and Defiant side stands. The first (earliest): a metal "drum" with a central screw that fixed to the outside of the cab. Second (later): a flat plate, sometimes a disk, fitted inside the cab - holes were drilled for the pivot screws to protrude through.

25th November

Traveller no. 1125 added here - thanks to Roy for the pictures. Supreme no. 1162 confirmed as no. 1162 - thanks to Philip. Pictures of Conqueror no. 2044 registered here.

Also Defiant no. 1487 - only the serial number plate for the moment though.

19th November

Conqueror no. 1142 and Defiant no. 2573 now registered.

Also Super Foundation Bass no. 2026 and Foundation Bass no. 1518, currently the earliest FB to have "AMPLIFIER" rather than "VOX AMPLIFIER" on its serial number plate. Further amps to follow.

18th November (2)

The first advert issued by Vox Sound Equipment Limited - "Beat Instrumental" magazine Aug. 1968. As ever, click for a larger pic.

18th November

Below an article from "Beat Instrumental" magazine August 1968. Click for a larger pic.

"Vox Sound Equipment Limited" in Reg Clark's words was "born at the beginning of June [1968]". The merchant bank that underwrote VSEL may have been the Corinthian Bank, named a year or so later in connection with the company's collapse. Corinthian's reputation was not good. The Beatles are pictured, inset, on stage at the Savoy Theatre, London - the promo for "Hello Goodbye". The amps are a UL430 and two Conquerors.

The page on Vox Sound Equipment Limited has been brought up to date.

16th November

Super Foundation Bass no. 2614 now registered here. Thanks to Christophe for the pictures.

8th November

From the Birmingham Post, 8th and 9th December 1967. The descent of Royston Industries, the holding company of Jennings Musical Industries, into receivership.

That it was the black box "Midas" flight recorder that did for Royston, has long been known from the "Vox Story", ed. Dick Denney and Dave Petersen. But interesting to have more on the dates from these newspaper sources.

7th November

A snippet below from The Aberdeen Daily Express, 12 June 1968. The same report was also given in the Birmingham Daily Post, 10th June 1968.

It is not clear who or what "Surminster Ltd" was - very probably some misunderstanding on the part of a syndicating agency. But the reports at least indicate that Royston had off-loaded Jennings Musical Industries by early June 1968. The new company was of course "Vox Sound Equipment Limited". For more background, see this page.

5th November

A new page in building on Vox speaker labels in speaker cabs issued with solid state amps.

4th November

The page on Vox Super Foundation Bass speaker cabinets has now been updated - some new examples and details. An outline of dated components in two JMI SFB amps has been added to the updated Supreme lists on this page.

1st November

Preliminary spreadsheets of date codes in early Supremes have been set up on this page. Details of further amps to follow. Similar sheets will be drawn up for Conquerors, Defiants, et al.

Updates January to May 2018.

Updates for September and October 2017.

Updates for July and August 2017.

Updates for June 2017.

Updates for May 2017.

Updates for April 2017.

Updates for late March 2017.

Updates for early March 2017.

Updates for January and February 2017.

Updates for 2012-2016.

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