[1] Chief engineer Tom Colangelo, who brought visionary audio circuitry to the company, died in a tragic car accident in 2007.

Harman also makes Mark Levinson audio systems as an optional upgrade for Lexus luxury automobiles.

[4][5] Certain Lexus models have featured Mark Levinson sound systems as an option since 2001,[4][6] with prices varying based on the vehicle and its specific components (~US$2,500 for the LS 460, ~US$1,600 for the ES 350, ~US$1,440 for the IS 350, etc.).

The first Mark Levinson car 5.1 surround sound system appeared on the Toyota Crown Majesta in 2004.

Each of the two channels comprising a woofer using a 24” Hartley drive unit, a pair of stacked Quad electrostatic speakers for the midrange and between the two Quad speakers a Decca (Kelly) ribbon tweeter for the treble, the latter modified by having the horn removed.