sentences:  In 1986, St. Louis Music acquired the rights to the Ampeg name and took possession of all remaining MTI inventory, which contained enough original components to build 500 amps.These 1987 Limited Edition SVTs were built in the U.S. by SLM's own Skunk Works crew, and each included an engraved panel indicating the unit's number within the production of 500 total units.In 1990, Ampeg introduced the SVT-II and SVT-II Pro, and in 1994, introduced the SVT-CL (Classic).