B&W Nautilus 800.....where's the bass?


Is it a well known fact that these speakers lack bass? I just bought them used...two years old....and am very dissappointed in the low end. My CDM 9 NT rears have more bass than these. No kidding. Is this a known problem with this speaker, or could there be something wrong? Since the 9's and the 800's are playing at the same time on the same system I do not think there is any need to list the equipment, but I will just in case it matters.
Sunfire Theatre Grand 2 processor ( all speakers are set to large)
Denon 3910 CDP
Adcom 300 by 7 ( 800's are bi amped with four of the channels.....phase is correct)
speaker wire is 14 guage in a very thick outside jacket
Thanks for your help.
baffled
Lawyerman......I am happy to say I paid less than 6000.00. Perfect condition. I like 'em even better now!
I am glad you are Happy Baffled ! Great for you.

Maybe I was a little too hard on poor ole B&W.
I beg to differ Lawyerman.
B&W 800N (Nautilus speakers) are incredible speakers! They give you all the bass and dynamics that one would ever need.

The B&W Nautilus 800 Needs the right equipment. At this level there is no room to take shortcuts. A lot of clean power, and excellent electronics, cables. And you'll hear these babies sing.

I Highly recommend the B&W 800N speakers. In fact I like them more than there new 800D speakers. Both great speakers just a matter of taste. And that is another forum topic for another day.
I have had B&W Matrix 802, Nautilus 802 and 802 D.

They definitely lack of bass... among other things.

(In the past, the medium was great... it has become rude to my ears).

And I was a B&W fan .... !

I changed my Nautilus 802D for Zingali Monitor 115, with a huge 39cm bass speaker !
Another story, much better !

And all the same ! Better midrange and high, thanks to the Omniray.

I don't understand what's happening to B&W : my 1980 Matrix pair for 3000$ was better than my 12'000$ Nautilus...