Quality over quantity my friend. Are you telling me the bass is more accurate through the Def Techs than the Revels or SoundScapes? And are you actually going to need more bass than what the SoundScapes provide?
Actually, I would pit the woofers in the Soundscapes against the ones in the Def Techs. Those AE drivers are pretty awesome, and the designer used to work for TC Sounds if I remember correctly. Bring it on!
I would say the bass in the Salon2, Soundscape, KEF 207/2, & Orion, are tighter (Q=0.5) and have less distortion. Of course. Fact of life. Carved in stone.
But as you say, the quantity is more in the BP7001SC. And the "quality" is pretty good, but not good as the other speakers, which is expected with the price difference.
And whether we need more bass is dependent on our preferences. Some guys and girls prefer crazy amount of bass. And as Brian (Rythmik) pointed out, some folks just prefer a bass with Q above 1.0, instead of 0.5. Some consider the higher-Q bass more fun.
I think it's mood dependent and music dependent.
For example, I prefer the bass in the BP7000SC for the song "Billie Jean" over the Salon2. The BP7000SC produce that party fun chest thumping bass in your face.
Other times, especially for more serious mood, I prefer the bass of the Salon2.
But hey, everyone is quite different, and that is quite A OK.
But bottom line, as you say, quantity vs "quality". An engineering compromise.
Take home message, hell yes I would rather have the Salon2, Orion, Soundscape.
But those BP7000SC speakers are pretty darn good.
Will someone please help he out here?
Gotta go, good night.