The VTF-3 MK3 shouldn't be bottoming out easily unless running in the extended bass mode (ie. one port plugged, and bass extension switch set to '1 port open' mode) at high playback levels, or if running quite hot relative to the main speakers. Interestingly enough, based on our internal measurements, the VTF-3 MK3 has more maximum clean output capability below ~ 30Hz, and the frequency response linearity of the VTF-3 MK3 is very good too.
Anyway, this thread is over four months old, so let's move on shall we?
