Difference in B&W sound


Greetings, I have a set of 804n & 803 Matrix2. I'm running a Pioneer Elite 74 Txvi with a parasound 2003 MOD & a Parasound 5250v2. the 804 have a sensitivity of 90db. & the 803s have 89db. The Matrix sound so much better, so why would this be for an older model? Could the 1db. be that much of a difference? I'm confused.
128x128danmar123
Ct, I always admired the B&W Electrostatic Speakers, ever since I bought my Heresy Back in the 70s. Have you looked @ the new Emotive XMC-1? I'm looking to upgrade my Pioneer, just waiting for Emo to get everything in order. Anyone else have any suggestions? AMB
@Schubert, I don't know what to say? They just don't sound right to me. I grew up listening to my dad's tube pilot gear with large warfdale speakers and like the warm sound with punchy but not forward midrange.
Ct - ......Have you looked @ the new Emotive XMC-1

AMB - I am strictly two channel in my two rooms. I had an elaborate HT setup many years ago. My wife upon hearing the first helicopter land and shake the house main floor said, "that's enough of that"

So my fate was sealed. The Denon AVR 4800 from those days is still in the house, somewhere.

Some action here for the XMC-1 at AudioGon if you do a search. A quick google search shows many dedicated forums for the brand. So I see its very popular with quite the following. Let us know how you make out.

Cheers
"Anyone else have any suggestions?"

Actually, I forgot to mention in my first post that B&W speakers are known for the screws to loosen up over time. It would probably be a good idea to over all of your speakers and make sure everything is tight.
I had a top of the line model (don't remember what). I got them on a wim when first wife passed...anyway, they were very disappointing...changed to top of Vandersteen line. Smiles.