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
"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.
"01-21-15: Stringreen
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."

I had top of the line B&W's too, but I downgraded to the entry level Vandersteen's. Smiles.
even largest ones have very poor bass no matter how much power you give'm pointless.
midrange and trebble are very clean, but no need to go for the higher-end ones. the cm series probably best choice on price per performance. i also agree that matrix series sound substantilly better than n8xx