Originally Posted by jbrown15
Three would be a good argument, but two XS30's would still have more output above 30hz over three XV15's and below 20hz they would also most likely have more output.
2200cubic/ft isn't very big so two XS30's would have a pretty even response throughout the room. At least it does in my 2100cubic/ft room.
until you take measurements you can only assume. the xs30 will not have more output in the lower range until the xv15's run out of steam. which in my room is 115db @ 15hz and 108db @ 12hz.
quote from Tom's email...
"It would be the same as 2 XV15 versus 1 XS30. In the mid and upper bass....very close. In the deeper bass (15-35hz) a big advantage to the XV15s. (about double...5-6dB more)."
3xv15's would have 2-3db more output in the 15-35hz range over 2 xs30's...and unless the room is sealed the xs30's may not exceed the output below that. also in the end how much output does one need? my dual xv15's have more output across the range than a humans ear can tolerate for any length of time. the xs30's would add headroom in the mid bass, but its not needed in rooms smaller than 3000^3. so with the xs30's your buying extra output that 90% of most folks will never tap into...its more bragging rights than anything. now im not saying dont buy a xs30...for for folks who prefer a sealed sub taylored for music and works good for HT then its a great option. however for folks that want a sub taylored towards HT, the xv15 will get you what you need for alot less money and sound great with music aswell.