Grainger,
I think you really have to look at the Orca sub compared to typical subs the same way you do the Orcas to other standmount monitors -- it's practially a crime to call them a sub -- they don't boom, they have real tone, and more importantly, tone that seamlessly integrates with the Orcas (or Nagas in my current case), plus they match in terms of dynamics, and Clark tells me that all of this will improve noticeably when I replace my aluminum cone drivers with the paper cone ones. Of course the new one will have the paper cone *sub*.
And yes, one will surely let you feel those Taiko drums, and 2 would probably let your neighbors feel it too :-).
My feeling is that the Orcas are quite usable on their own to approximately 50 hz, which is about all you get from most LPs anyway. On the other hand, there's no doubt that the Orca sub adds some weight and dynamic punch as well as some more extension on the bottom.
Man, I am just itching to get this system going! :-)
When Clark first walked into my listening room his first words were, "Oh, this is an Orca room for sure." Aside from that I'm getting used to the Nagas in the media room, though some more placement adjustments will surely help, as will the stereomour.
-- Jim
Jim Rebman -- recovering audiophile
Equitech balanced power; uRendu, USB processor -> Musette DAC -> 5670 tube buffer -> Finale Audio F138 FFX -> Cain and Cain Abbys near-field).
s.e.x. 2.1 under construction. Want list: Stereomour II
All ICs homemade (speaker and power next)