Michael - Thanks for the reply. One fun test for me is to run a "peak hold" with TrueRTA software while watching a movie. By doing this, one will see the peak bass levels at all frequencies from 10 Hz and up. With 1/24th octave resolution, this makes for some very informative graphing.

Perhaps someday, I will get a chance to try this with an LFM-1 and VTF-3 ...