Hi A few questions I wish to ask just out of curiosity. a. Why is the cylinder series from SVS more popular than their box models and box subs from HSU more popular than their cylinder models? b. What is the difference between HSU's STF and VTF series? c. Why not compare CS/PCs and PBs to TNs and VTFs respectively? d. I've read in a few places that HSU VTF3 is more musical than SVS. Is that true? If the questions have already been answered, please post the link if possible. Cheers.