Well these two models are pretty much the same. But at first I was thinking of getting the Sans Amp Bass Driver DI which is a pedal, and then I came upon the new Sans Amp RBI which is the same model as the Sans Amp Bass Driver DI but has a bit more feautures, its more expensive, and its a rack mount version. What do you guys think should I go the extra mile and get the Sans Amp RBI or stick to the Sans Amp Bass Driver DI. The extra feautres that the RBI model has is that of course it is a rackmount but it also features a dedicated Mid control; individual Level control for the XLR out to optimize your amp's output relative to the P.A. system; Effects Loop; Mix 50/50 switch to configure the Effects Loop in series or parallel; 1/4" rear input and XLR output with select- able levels; buffered uneffected XLR output to run a dry signal to a separate channel; Footswitch input to engage unit; and Footswitch output to chain and toggle between another SansAmp RBI.