speaker simulation

Imagine- Bass -> Preamp (pedal or rack) -> DI to mixer -> 2x 18" subs and 2x 15" top PA speakers No sound guy/FOH The preamp is intended to be used in front of an amp or power amp into a colored bass cabinet and not right to a PA. How do I make the balanced out from the preamp sound great in...

I currently use an all analogue pedalboard with a Sansamp Programmable as my last pedal that I use for three tone selection and DI. I would like to add a limiter pedal AFTER the Sansamp so am looking to buy a D.I. box to have last in my chain. I thought it would make sense to use a D.I. with...