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
Avent91.. Transparent Cables had a fairly significant positive effect on the sound reproduction with my 800N's. Important though to use Transparent for all cables, I/C and speaker to realise the full effect. The 800N's have the ability to produce accurate and tight base in an effortless manor with the right amps.
Arcoleo, Thanks for the suggestion. I will try repositioning the speakers first. If that doesn't work, then maybe I'll try different cables.
Everybody can have a say. From Judy to ahcjmh1@. So here's mine

Reality does bite and when all is said and done, the B&Ws need power and current. So the combination of amp + speaker cables is rather critical. I power my 802N with a pair of Mark Levinson 33 amps via 2 separate pairs of Transparent Reference speaker cables for biwiring setup. The ML33 are supplied with individual 35A power lines from my AC mains box. So plenty of current on demand the music is just seamless.

The N800 have an internally built downfiring subwoofer. Well designed and sounds very tight. Again it needs current to run it. No point if the amp is rated 300W but unable to provide high current output continuously on demand. I have heard a thumping drum track like never before on the 800 but each were powered by ML 33H (which ran hot).

Power amps that share a common transformer beware, the 800 and 802 will soak up current like never before......IMHO better to go with monoblocks each powering the 800 or 802s.

Avent91, The amps are Chord Electronics SPM6000 monoblocks. 750wats/speaker. Cables are Transparent reference XL, the current version.