I agree Tgrisham! If you look at the orchestra and the various pieces in the orchestra rep there are many that go very low. There are extensions for the double bass that allow it to play the lowest "c" on the standard keyboard, which is about 33 htz. Also if you really listen to things like bass drums you would realize that the decay can produce noises that are well below 30 htz. Additionally, there are a select group of pianos, the Boesendorfer concert grand, that have freqency extensions down to 16htz...Now the only written piece that intends to use these extra pitches were written specifically for this piano, but don't you want to have the capibility to hear every note as it was intended to be heard in the concert hall??? I actually had the opportunity to give a recital with a Bosendorfer concert grand, and I can honestly say that I enjoy its sound much more than your standard Steinway...Without the ability for your system to reproduce even the sympathetic low vibrations of any instrument, you will never be able to acheive the actual sound and hear any instrument for what it really is!
