My equipment review of the Bose 901
 

Les Cargill wrote:

Dunno - the Bose car systems I remember with early '90s Nissan
Maximas was a stone cold great sounding car system - or so I
thought at the time. Had very accurate subs. Love to revisit
one of those, these days - see if it still seems as appealing
as it did.

Exactly. The drone and background noise while a car is moving
is countered by the frequency boost in the midrange. The 60-100hz
drone from the tires and drivetrain is countered by the exxagerated
mid-bass.