[LAU] Speakers gymnastics ?

[jonetsu]

This is a a general audio question and perhaps a strange/funny one.

Recently I got some Ozric Tentacles more or less relatively recent CDs
which has at times extremely low and powerful bass sounds.  Caught me
off guard in the car as the car's speakers went booming.  And then it
happened a few other times.  Now, when I play 'regular' CDs that I used
to play before, I notice that I have to lower the bass by one notch,
compared to the usual setting, as it is more powerful than it used to
be.  Or is it just some problem with my perception/eras ?  Is it
possible at all that driving very low bass sounds at a fairly high
volume for small amounts of time 'flexes' some speaker membrane and
make them play bass sounds better afterwards ?