Difference in B&W sound

Their more open, I have the trim down to -10 opposed to -4 on the 804, via MACC set up. I tried switching my cables, which are MIT 23 for the 804 up front & MIT Matrix 6 for 803 @ the rears.

Danmar123,

the newer B&W speakers uses a Kevlar design in their drivers. Also, a diamond tweeter is used in several models- many exclaim that there is more "brightness" and harsh edges to the sound.

Conversely, the older models of B&W do not use the Kevlar impregnated drivers, nor the diamond tweet(s). I have listened to both overall designs in the past, and each sounds fine to my ears. Happy Listening!

More open could mean many things. It would be a better comparison if you were to listen to both speakers without any processing. That way, you are hearing more of what the speakers can so.

The Matrix series, as well as all 800 series since 1974, use the Kevlar mid.

Speculating here, but having owned both Matrix 802s, 804s and Diamond 804s, to include both at the same time (804s), this may be very simply a matter of synergy with your electronics. As a rule B&Ws need power to open up, and (this is the speculating part, as opinion doesn't count on science) I think the newer models may even be more power dependent. If it were possible, I would do the same listening test with a very good high powered amplifier and see what happens. I suspect the N804s would surprise you with the sound quality. Also, the matrix series sound great - just because they are older doesn't mean they are bad. In the right room with the right electronics and music they still produce nice music, which some might prefer. The newer models might have tighter bass or better treble, but in the end these things can be a matter of preference and system synergy.