As some of you know I purchased the VTF3MK3, and was anxiously awaiting delivery. Well the waiting is over and I have it set up and playing LOUD!!! I havent had time to calibrate yet and it's not even broke in yet. I had about 1 hr to play with it before I had to leave for work. This thing is HUGE and is beautiful. The ports are VERY large and the BASH amp is large as well. This is a side firing sub with rear ports. I have the sub placed directly behind my couch and listening position as Dr. HSU recommended with the woofer firing directly into the back of the couch, about 3 inches away. The ports are facing towards my left rear surround. I have played with the Variable tuning feature back and forth as well as the crossover adjustment, which I finally decided to let my recievers crossover take over duties. I have found it sounds best at 80hz (so far) and low frequency extension seems to be just as good in Max Output mode as with one port plug in and set to Max Extension mode. This will take some tinkering to figure out what I like for sure. This woofer TRAVELS bigtime and the amp gain is only turned half way up. I have my subwoofer level at +6 on a -12 to +12 scale. As I said I have not used a SPL meter yet nor have I made many adjustements to the gain on the amp. I am afraid to turn the gain all the way up because of the amount of excursion that this woofer is going through at this setting, although Im sure if I did it would be fine. I have played some Bass heavy music as well as Star Wars Attack of the Clones so far. The beginning scene of this movie when the space ship lands and blows up sounded unfreakin believeable, with no bottoming of the sub at all and it just pumps out these low frequencys with no problems. This thing is causing some serious shaking of my couch as if I had shakers installed, and the LFE is very cool, playing frequency's the I cant hear or locate but can feel with authority. One thing I noticed is that when the crossover is set to 100hz I could locate the position of the sub audibly easily and this seemed to be taken care of when I lowered it to 80hz. With music the bass seems to be nice and tight with techno music, but it shined when I put some Rap on. The low end is unreal and as I traveled further and further away from the sub ( into my master bedroom for instance) the LFE seemed to get deeper and deeper. This sub will easily fill up my room with extremely low and hard hitting bass, and my room is very large with an open kitchen and dinette, as well as an open foyer, office, and formal dining room. I cant imagine what this thing is capable of in a small closed off HT room. I used to install multi sub setups in vehicles and I know what LFE is supposed to feel like, and this sub is suprisingly handling the lowest bass frequency's of my music and from what I can feel some good numbers for SPL. Ill keep you guys posted as I can play with it more.