What the title says. I couldn't find a clear answer on this on the Tech21 website or in the manual. The RPM doesn't have any kind of speaker simulation.. I presume? Since it is also designed to be used for non-bass instruments. Does the RBI have speaker simulation... because it is the rack version of the BDDI? Comparing the RPM to the RBI, is this a big plus, not to have the rolloff of the speaker simulation? I have the BDDI, it is nice to use a preamp except for some drawbacks IMO (like limited tone control, speaker sim). And I don't need the presence control (that's technically boosting high mids, right?). And I really would like the option of semi-parametric mids. So RPM the wisest choice? Thank you.