So you're contention is I'm just smoking the coils a bit?
Yes in teh majority of consumer designs:
When the woofers have large excursion they lose linearity and oomph because the coil sees a lower magnetic field.
When they get hot (typicaly around 150 degrees celsius) the resistance rises and they compress as well as making the crossover inappropriate (designed only to work when voice coils are cool). It takes as little as a few seconds to heat a voice coil.
In both cases this results in lots of distortion and the speakers sound dull, flat and loud instead of effortless.
A good pro design should play much much louder but won;t sound loud because of thelack of distortion.
Most consumers think their music is extremely loud when it is not...they are usually only overdriving their system and listening to large amounts of distortion & compression(distortion is perceived as loudness by our ears/brain)
In general (there are of course exceptions): A high quality pro speaker comes with ugly cheap cabinets and expensive drivers. A high quality consumer audiophile speaker comes with beautiful expensive cabinets and ugly cheap drivers.
Nice quality woodwork is expensive and is an obvious source of pride and joy to consumers. Good quality drivers are much less obvious to an untrained listener. Manufacturers simply make what people buy/want.
