And you base this opinion on what?
04-29-12: Tamule1
real bass comes from moving a large surface area gently -not a small surface violently . 6.5" is not a woofer size IMO
What then shall we call all those 5.25" and 6.5" drivers that provide real bass extension down to 25-30 Hz?
You also left out the part about how the back wave is managed, which accounts for why the Atlantic Technology AT-1 extends usable bass to 29 Hz from a pair of 5-1/4" woofers.
Next thing we'll need a disclaimer:
"No violence was committed in the generation of these low frequencies."