I finnally got my HSU VTF-2 MKII in the other day and since then I've monkeyed around with it quite a bit. The first thing I'm going to start off is the difference between a sub sitting not close to something and sitting it next to a hard structure/wall makes a vast improvement. I first had it sitting out in the open for just some handy tuning and seeing where the distortion would begin. Now I have it sitting under a desk, I am going to order a longer sub interconnect cable for easier placement to get the most of out of my sub. I am not used to a sub that hits in the primarily low region so it took me some time getting used to the fact i didnt have a smaller sub hitting the lower mid range as well, after my ears became acclimated I liked the newer sound a lot more. It gave me a larger range of music and my mid range wasnt muddied up by a cheap sub trying to hit all different kinds of ranges. The size of the sub enclosure also suprised me, It sits a lot taller than I expected it to but this poses no problem for me. When I got it under the desk, laying down I could still get back and do some tuning and when my gf was over today and we were listening music I took the oppurtunity to finish tuning it. Another feature I really like with this sub is the fact I can switch between 1 and 2 ports, with 1 port it extends down to 25hz and with 2 open it extends down to 32hz but with an increase of loudness. I had been listening on mostly 1 port but I decided to switch up to 2 ports. My crossover was set to about 60hz, for the music I listen to this seems to be the best setting to my ear. Also opening up the second port let me be a lot more liberal with the volume knob. I was using the test CD that came with the sub but I wanted my bass to be a little more violent while I was setting my volume so I played: 50 Cent - Just A Lil Bit Gorillaz - Slow Country Gorillaz - Last Living Souls Eazy-E - Boyz In The Hood Smashing Pumpkins - Thirty Three I really hate 50 cent but the bass on that song is relatively impressive, I got the volume up there, being under the desk at the same time made a quite interesting experience as my nostirls literally fluttered with the bass. The sub had also managed to kick up some dust and with my flash light I could see it flying in and out of the port I was like . The two rear firing ports were reaking devastation . The bass filled my room which is something that I had been craving and it pounded the couch with fervor. The gorillaz songs worked especially well with my sub. Overall I am very happy with my purchase and so far I have no complaints. Time for the question: Under my desk I have a concern for standing waves with the sub and reverberation, if I lined it with acoustical foam or some other form of acoustical dampering would this improve the sound quality and prevent reverberation? The desk is pretty solid but it isnt open in the back like a lot of computer desks, it comes down to the flooor. I can have pics up later if needed. And until I get a longer sub interconnect the current location is my best sounding option. Any help and feedback is appreciated.