OP.
That's quite the blanket statement.
You're not only painting with broad strokes, you're using a industrial push broom to do it.
Words and Sound
Here are some examples of brands' names that sound rather similar to the sound of their equipment.
Hard/Cold/Analytical: Focal, Kef, Bowers & Wilkins, Klipsh, JBL, Wilson, Magico, Tannoy, Splendor, Yamaha, Altec, KLH, Triangle, Alta,Totem, Monitor Audio, Luxman, Krell, Schiit,
Neutral: Tannoy, Naim, Accuphase, Hegel, Pass Labs, Marantz, Rotel
Soft/Warm/Musical: Sonus Faber, Harbeth, Dynaudio, Elac, Vienna Acoustics, Whaferdale, Audio Note, Gershman, NAD, Audiolab, SucGen, McIntosh, Denon.
Maybe, unconsciously, the founders created the brand names to send like his sound....