I think the main reason for still wanting to demo the sb2000 is being able to just walk into a shop and to not depend on the post so much considering about the only thing iv ordered off the web is an hd cable.lol, if I knew for definite I wanted a sealed sub I think the arendal would be top of my list considering what's been said about it and how good it is, but have a deep down feeling that ported would win the day since I luv those luscious subtle low tones and then with the edge I could then just plug it up if needed for a more sealy sound. Could also just be me wanting to sow my subwoofer oats and see what different ones sound like.lol. but your dead right tis gonna be a difficult decision.Well you have 30days buy&try with the XTZ sub so try it out at home. Sanjualf had the SB2000 and as you probably know he liked 12.17 better. If you are eyeing sealed subwoofer then Arendal Sub 1 can´t be forgotten. Around ~800£ shipped to home (LSound.eu free shipping?) so same price as SB2000, but Arendal claims they have better cabinet (HDF over MDF), better amp components and overall the sound quality is better (more dynamic and cleaner). Tough call.