Just got a job, and I have been looking at getting the Bass PODXT Pro for a while, I just like it better than the X3, mainly since I can put it in a rack. Anyway, I know it is supposed to be used as a pre amp, which is fine, but I have two questions that are kinda amp related, kinda effect related. Effect wise: I do a lot of looping, I have the Boss 20XL and thinking up upgrading to the Boss 50 blah blah ( cant remember the full name ) Can I hook up my pedal board to the POD, then run the POD to the loop pedal, then into the power amp so I can use the effects in the POD with the looper? Probably easier to get a rack mounted looper but thats more money. amp wise: well more of a cab question. A lot of people I talked to and searched the forums says to get a flat cab, and I have no CLUE what this means. I am looking at an avatar cab right now, the B410 Neo found at avatarspeakers.com ( plus I like the Blue Tolex ). Would this be good for what I am looking for? and another noob question that I should know, whats the difference between 4 and 8 ohms?