Hi All, I'm thinking of going from my Pio 1014 to separates. I've been curious about this for some time now since I've got two Audiosource Amp-Two's just aching for my use. I've been eyeballing pre/pros (used) but I'm not sure if I've got everything mapped out correctly. I'm sure that I can get my hands on one more Amp-Two for center frt and center rear but at the moment it's the least of my worries. My first question is: When running separates, does the pre/pro have crossover's built in or do you need an ext. x-over for the bass management. Is it safe to assume that some pre/pro's have this and some don't? Do the majority have x-over control/bass management or are those features a rarity. Also, for calibration, do pre/pros have the ability to produce test tones like AVR's? Must I use the avia (or something similar) to calibrate? I think these are the two most important questions for me. I'm thinking about selling my Pio 1014, not for lack of performance but to increase it? When I sell the 1014, I will use the proceeds towards the pre/pro. I've already got my amps lined up so I think I'm ok in that area. I just need to know is there more to it than just the pre/pros and the amplifiers. Do I need anything else i.e. x-overs etc.? Thanks in advance for any help! Also, can I use the 1014 for pre/pro duty? I know there's no x-over on the outputs but it this a possibility? Thanks much!!!