Hi guys, im new to the forum, i have a big question. First a little backgwrand. I live in Mexico and heare is hard to get the stuff you guys have at a resonable price let alone be able to audition speaker, so i have to relay on review alone. I never heard a high def set up in my life all i know from it is what i can read on line so having saide that i was able to get a hold of a pioner sp- pf52s 5.1 sistem pair to a pioneer vsx 1021 receiver and two subwoofrers, one is the oroginal pioner that came with my set up and another one is a dyton 1000 i got on amazon. I have a dedicated room that i share with my 4 year old, half and half the room dimentions are 18'4Lx4'9Wx8'10H and is ligthly threated with 10 diy 2" 6lb rockwool panels scatter on the room. i want to upgrade my subwoofers, i want to get a hsu vtf-2 mk4 or a svs pb100. My question is wich one would you go for and why? i like tje hsu for the fact that is a 12" drivers, which i think gives you better feel than a 10" and i like the fact that is tunable and can go 18 hz. All the above i gater from what ive read. I dont like the price as much, i would get from the factory but at 499 plus shipping and taxes plus the 20% the forwarding company charges im up at 717 on it. On the other hand the svs i can get it for aboute 118 usd less. i really like the HSU but do you think is a over kill? you think i will be better off with the svs give that i would ve able to tell the difference since i have heard anithing else? Do you recomend somenthing else? I like the fact that both can get sub 20 hz. I would love your imput, and thanks in advance.