VOX SOUND LIMITED (VSL) AC50s

1975 - 1978

"Beat Instrumental" magazine, October 1973, signalling the end of the original incarnation of "Vox Sound Limited". VSL evidently did not put in an appearance at the Associated Musical Instrument Industries (A.M.I.I). show in August of that year. Negotiations were probably in progress with Dallas Musical Industries though.

As far as "Beat Instrumental" is concerned, the first one hears of a Dallas-made amp is in May 1974 - the AC30. The AC50 was evidently "in progress" - and still in progress in December '74, as its price then is also "TBA" = "To Be Announced".

"Beat Instrumental" magazine, May 1974. The entry is the same in the December 1974 issue.

A page from the Dallas Musical Limited / Vox catalogue of late 1973 or early 1974. Note that the AC50 represented has the type of logo used on "Vox Sound Equipment Limited" amps. .

Quite what sort of AC50 Dallas was offering at this point is not clear - perhaps a small stock of unsold VSEL amps. "Vox Sound Limited" - the company that Dallas took over - had phased the AC50 out - ie. none were produced from 1970 to 1972. No mention is found in any of the VSL catalogues nor in the pricelists published in "Beat Instrumental" magazine. Below, a list from July 1971.

"Beat Instrumental" magazine, July 1971. Only two valve amps: the AC30 and V100. For material on "Vox Sound Limited", which superceded "Vox Sound Equipment Limited" in mid 1970, see this page, with further links there.

1974 - 1975: Dallas Musical Limited

The first we see of the AC50 after 1969 is in 1975 - new Dallas-made amps with the "old-fashioned" VOX logo in gold letters.

The address of the new company: Elm Road, Vanguard Way, Shoeburyness, Essex. Naturally this was Dallas, given in trade journals of the time as: DALLAS MUSICAL LTD. Dallas House, Vanguard Way, Shoeburyness, Essex SS3 9QX, Tel 037008-4121/5.

Elm Road and Vanguard Way .

Below, the Dallas/Hayman drum factory at Shoeburyness into which production of the new Vox amps was moved (in late 1973 / early 1974):

Dallas Musical  Limited factory, Shoeburyness

Photo Mark Goodwin.

Build quality is excellent. One way to tell an early Dallas AC50 from a later one is by the presence or not of a voltage selector. Later amps did away with them.

For the warranty literature enclosed with these amps, .

Above, a snippet from The "Daily Express", 1st February, 1975, signalling the end of Dallas Musical Ltd, which had taken on the production of a small selection of Vox items.

Vox was saved, however, by Dallas/CBS Arbiter:

CBS Arbiter takes over Dallas Musical Limited

Note that Reg Clarke was the former Sales Manager of "Jennings Musical Industries" and "Vox Sound Equipment Limited". During the collapse of VSEL in early 1970 he joined Dallas.

CBS Arbiter catalogue, 1976, Vox AC50

Above, the well-known advert issued by CBS/Arbiter in 1976 for the AC50 in its two forms: bass and guitar.

Below, some snippets from "International Musician and Recording World" - the AC50 at the Frankfurt Fairs of 1977 and 1978, still under the auspices of Dallas.

Vox Sound Limited AC50 amplifier, 1977

"International Musician, February 1977.

Vox Sound Limited AC50 amplifier, 1978

"International Musician, April 1978. AC50 and Foundation Bass cab to the right of picture.

A register of amps

DALLAS MUSICAL LIMITED - 1975

Serial number 7503D5104

Complete with its original cover and warranty documentation - further pictures .

Serial number 75075176

Produced in 1975. Thanks to Herbert for the pictures

CBS / Dallas / Arbiter

1975 - 1978

Amplifiers with serial numbers beginning with "5..." were made from 1975 - mid 1977. Serial numbers beginning "6..." are from later 1977 and early 1978.

Schematic drawn up in 1976, presumably close to the end of the production run.

Serial number 5617

Serial number 5639

Serial number 5753 - currently in Australia

Thanks to Adrian for the pictures.

Serial number 5794

Serial number 6114

Produced in 1976.

Serial number 6127

Serial number 6148