Well, that's the frequency range where the PB1-ISD could use the boost the most. :) Right where there are very powerful bass peaks in some of more intense action movies on DVD. This should make for a significant improvement in performance when it really counts. What would be your guess on...
Well, with the PB1-ISDv coming out soon for only $100 more, there will be no contest in this price category for box subwoofers. :) This supercharged version of the PB1-ISD is going to be even more incredible. I wonder how much boost in SPL at 18, 20 and 25Hz we will see with the v version...