11/1/2022 0 Comments Vox amplifiers![]() ![]() JMI published a full page advertisement in a number of music trade magazines in the summer of 1964, hoping to establish a US distribution relationship for Vox.Īfter meetings with a number of suitors, JMI appointed the Thomas Organ C ompany to be the US distributor of Vox in the last week of August 1964. JMI Appoints Thomas Organ as the US Vox Distributorĭespite the success Vox products were enjoying throughout the world, JMI had not developed a channel for US retail distribution through the first half-year of Beatlemania in America. While officially called the AC-100 "Super DeLuxe," the amp was also nicknamed "the Beatle amp." A chrome plated swivel trolley allowed the speaker enclosure to be tilted for maximum dispersion. The 100 watt AC-100 "Super DeLuxe" amplifier featured a speaker enclosure with four 12" Celestion G12 Alnico speakers and two Midax horns. For their August and September 1964 US tour, JMI provided Vox AC-100 "Super DeLuxe" amplifiers to John Lennon and George Harrison. The Beatles used these amps for their February 1964 appearances on the Ed Sullivan Show and their first US concert at the Washington Colisseum.īy mid 1964, the Beatles were performing in arenas to audiences of 10,000 people or more. John Lennon and George Harrison were each supplied an AC-50 head and an enclosure with two 12" Celestion G12 Alnico speakers and a Goodmans Midax horn. ![]() Prior to leaving for Paris and the US in early 1964, Paul McCartney was supplied an AC-100 head with a 2x15" enclosure. ![]() The Beatles were provided early versions of these new amps. The first 100 watt AC-100 and 50 watt AC-50 heads were produced by JMI in late 1963. The only controls would be volume, treble and bass. Neither reverb or the complex Vib/Trem circuitry of the AC-30 would be included in these new amps. Vox decided that the major selling feature of these new amps should be their abundance of power, not the inclusion of effects or multiple channels. In response, JMI started development of 50 and 100 watt tube amplifier circuits. JMI was aware that the maximum audio output of the Beatles' Vox AC-30 amplifiers had become no match to the level of their screaming fans. Most of the major British rock groups, including the Beatles, were using them. Prior to 1963, the most powerful amplifier made by JMI was the 30 watt AC-30. Jennings Musical Industries (JMI), the company that founded Vox in Dartford, Kent, UK, started to investigate the development of high powered tube amplifier circuits in early 1963. These speakers were manufactured for Vox by the Oxford Speaker Company of Chicago IL.The JMI Vox AC-100 "Super DeLuxe" - The Original "Beatle" Amp Two 16 ohm, 12 inch Vox Gold Bulldog speakers, wired in parallel to 8 ohms, were installed in the amp. A pair of tubular, chrome plated side swivel stands with casters, three Vox logo handles, six Vox logo vents, eight plastic "one pin" corners and a vinyl protective cover were included. The cabinet styling was patterned after the JMI Vox AC-30 amplifier, albeit somewhat larger. The "Normal" channel included a "Top Boost" rocker switch while the "Bass" channel featured a sweepable frequency tone control called "Tone-X." The three channel amplifier featured tremolo in the "Normal" channel, reverb that was selectable to either the "Normal" or "Brilliant" channel and MRB or "Mid Resonant Boost" in the "Brilliant" channel. The amplifier was rated 35 watts RMS, 70 watts peak into a 8 ohm load. V-15 or V115 Viscount Amplifier - Introduced in early 1966, the first generation V-15 and V115 Viscount circuits were electronically identical and documented on a single schematic from Thomas Organ. ![]()
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