Sub Equalizer?

[Retread]

I've got some nasty room resonances in the range below 100 Hz. Would an equalizer between the amp and sub do any good? and does anyone know of a good equalizer for that frequency range?

[CT2]

Lots people using BFD to do this just for sub
Take a look of http://www.snapbug.ws/bfd.htm

CT2

[Retread]

Ordered one.