Hmmm, I dunno....
.....if it's a mega sub woofer set-up. All I know is that the original window sticker (yes, it has survived intact for 12 years) says that it was equiped with a "premium sound system" that does tend to thump and bump when cranked up. The dash unit says "Mercedes-Benz" an AM-FM stereo cassette unit.
1991 300SE (my ride, 279,000 miles, looks almost new
1954 Cadillac (21 yo son's car, he bought when age 15)
1972 SeaBird 19 ft runabout (old but solid, slant six, Volvo sterndrive perfect condition, undergoing complete overhaul and refit)
1998 Toyota Rav4 (my sons daily driver when he is in the Continental US, PROUDLY serving in US Navy)