These SVTs also include a back panel selector toggle for 2 or 4 ohm speaker impedance loads and a longer and thicker gauge 3-prong power cable. Cosmetically, MTI SVTs have black faceplates with white lettering, black grill cloth, "elephant hide" or rougher textured tolex, and rack case-style spring-loaded handles, updated from the previous (and painful) rubber-covered metal strap handles. While MTI-era SVTs are mostly identical to the previous versions, they did have differences. (MTI), which contracted to have SVTs manufactured in Japan. In the early 1980s, Ampeg was bought by Music Technologies, Inc. Īmpeg SVT VR "Vintage Reissue" (blue line) After the tour, Ampeg put the SVT into production, introducing it at the NAMM Show in 1969. The Rolling Stones took these prototype Ampeg amps on tour along with Rich Mandella, playing all guitars and basses through them for the entire tour. These new amps employed a 14-tube design to generate 300 watts of power in an era when most tube amps generated less than 100. Their road manager, Ian Stewart contacted Rich Mandella at the Ampeg office in Hollywood, and Rich arranged for the band to use five prototype high-output amplifier heads of a new model being developed by Bill Hughes and Roger Cox. Tour in Hollywood, a power conversion failure blew up all of their UK Fender amplifiers. When The Rolling Stones began rehearsing for their 1969 U.S. SVT originally stood for Super Vacuum Tube, but Ampeg has since revised the meaning of the acronym to Super Valve Technology, with the word "valve" referring to the vacuum tubes (called "valves" in Britain and some other regions) used in the amp.įollowing Unimusic's acquisition of Ampeg in 1967, the new company management was actively pursuing the rock market, opening offices in Chicago, Nashville, and Hollywood, and developing products designed to address the needs of rock musicians. It wasn't until 1980 that the speakers in the enclosures were updated to a power handling rating of 350 watts, allowing a player to use an SVT head with only one cabinet!
While the SVT could be used with any 300 watt, 2- or 4-ohm cabinet combination, Ampeg recommended that it be used with a pair of sealed 8x10" speaker enclosures because one cabinet could not handle the power of the SVT. The SVT has been through many design changes over the years but is still in production today. The SVT is a stand-alone amplifier or "head" as opposed to a "combo" unit comprising amp and speaker(s) in one cabinet, and was capable of 300 watts output at a time when most amplifiers could not exceed 100 watts output, making the SVT an important amp for bands playing music festivals and other large venues. The Ampeg SVT is a bass guitar amplifier designed by Bill Hughes and Roger Cox for Ampeg and introduced in 1969. JSTOR ( June 2009) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.
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