What is the most dramatic way of increasing a speaker's Bass and Low mid?


Hi-

I am wondering what would give the most dramatic increase in bass and low mid projection/Volume, even on account of accuracy ...


My speakers can go down to 28hz but i need to boost it’s level, not frequency extension. They are 2 way with bass reflex port. 6.5" woofer size and a tweeter. Floor standing.

My floor is old hardwood strips.

placement and coupling methods are the first things that come to mind. I do not want to add an equalizer at this point.

Spikes, footers, concrete platform, direct floor flush contact? anything and everything that YOU know works.
Speculations on untested methods are not needed as i need real life experience from people.

Thanks!
Rea

128x128dumbeat
I know you mentioned you didn't want to try equalization, but........if all else fails, maybe trying a Schitt Audio Loki equalizer might help. I have read it is transparent to the source whether it is in or out of the circuit. I think the frequencies it handles are 20hz, 400hz, 4k, and 8k. Fairly cheap at $150. IMO.
@dumbmeat
Well , obviously you have never tried Purist Audio Dominus.
Do not be so sure about your assumptions. 
Why would a cable EQ So much and how? Are there resistors? an eq network in there... The most a cable can do is degrade not enhance...
the speakers in case are VSM's but the question is general about Acoustics and coupling.