I've got three bass drums:
1) 14x22, with
Aquarian SuperKickI/Regulator combo (pre-muffled heads)
2) 14x20, currently has an
Evans muffling pillow, with
Remo black dot batter head and Fiberskyn reso head
3) small (26") concert bass drum (not used for drum set) - fiberskyn heads, no muffling