You don’t lose bass when moving cables. It just does not happen. If you truly lost bass, you have some corrosion issues or as Erik_Squires pointed out, a piece of equipment that has warm-up issues, though that seems unlikely unless you are using tube-equipment and something is out of whack / tubes are getting old.
Thinking about this another way, you may not be loosing bass, you may have a high frequency emphasis that is going away which also happens with equipment warm-up. An initial high frequency emphasis will make the bass seem weak. Again, taking cables on/off, unless you have serious corrosion issues will make almost no difference in frequency response (think small fractions of a db).
After moving interconnects around that’s when bass and air was lost.
Thinking about this another way, you may not be loosing bass, you may have a high frequency emphasis that is going away which also happens with equipment warm-up. An initial high frequency emphasis will make the bass seem weak. Again, taking cables on/off, unless you have serious corrosion issues will make almost no difference in frequency response (think small fractions of a db).