Bass is a difficult subject. It depends completely on whether you are allergic to EQ or not, and what you consider to be "slam enough".
Mad Dogs are capable of very nice slam, but IMO atleast +6-9dB boost <100hz is required. This is no different from my LCD-3's (or 2's). Both of these are too neutral by default to "rock out", but they handle EQ just fine. LCD's have the edge on bass details etc, but honestly it's very easy to exaggerate the differences. Bigger difference comes from Mad Dogs being closed (smaller soundstage).
Value is very subjective. For rocking electronic music, I've yet to find better value than my $15 "FA-004" clones with $20 Shure pads. They have enough slam even without EQ. It would be easy for me to say that they are "80% of Mad Dogs" for that purpose, even though they are 10x cheaper.
disclaimer: I have no idea what "slam" is considered here or elsewhere, but I refer to general impact/punch/weight.
Edited by hekeli - 9/13/12 at 1:33am