Question ??? ON LOWER bass notes on most speakers I can not tell the difference between a bass fiddle or a bass guitar or whatever. I have heard a big difference on horn resonant pipe speakers. How does the Pi four do in this area ??? On a well known tv commercial a tune which sounded like a electric organ playing a tone was in fact a bass fiddle. This was made known when i listened to it thru a large tapered horn. Allso i had one pipe that when the cars were on tv, they sounded exactly like it. These same speakers were not right in output at other freq.