Apt Holman

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Equipment
Apt Holman manufactures or has manufactured the following equipment (click to expand models list):

General information
The APT Holman amps are developed by Tomlinson Holman, the TH in THX. They were designed by Thomas Holman who later went on to design the specifications of the THX system for George Lucas).
Tom was chief electrical engineer at Advent Corporation, founded Apt Corporation, maker of the Apt/Holman preamplifier, and was at Lucasfilm Ltd for 15 years, winding up as the company's Corporate Technical Director and where he developed the THX Sound System and its companions the Theater Alignment Program, Home THX, and the THX Digital Mastering program.
Refurbishing & modifications
APT/HOLMAN Repair Service -In House Service Company.