Quote:
Originally Posted by Matts 
Your room dimensions look fine for the 804D's. I cannot speak of the 805s's, but I own the 805D's and 804D's. I use 804D's up front and 805D's to the rear. To me the 804D's add more bass and a little more extension to the lower end. The 804D's also have a dedicated midrange driver, where the 805's have one woofer that shares mid/bass. In this regard the 804D's will have slightly better separation, and staging as you are not asking one 6.5" woofer to do two jobs and cover such a wide frequency range.
IMO If I was going for a 5.1 HT setup, then of course I would by both 805 and 804 and then add center HTM2 or 4 and then sub and call it a day. If on the other hand I was looking only for a stereo rig (2.1 or 2.0) I would go with 804D's. In your case since you already have the 805s, which I would assume are very close in performance and tonal balance to the 805D' - the cleaner more refined treble would probably be the major difference, but I am sure that the difference is not night & day. I would get the 804D's for the better bass/extension in FF and the slightly cleaner midrange. Especially since the difference in price would be going from ($5K for 805's to $7.5K for the 804's.)

Your room dimensions look fine for the 804D's. I cannot speak of the 805s's, but I own the 805D's and 804D's. I use 804D's up front and 805D's to the rear. To me the 804D's add more bass and a little more extension to the lower end. The 804D's also have a dedicated midrange driver, where the 805's have one woofer that shares mid/bass. In this regard the 804D's will have slightly better separation, and staging as you are not asking one 6.5" woofer to do two jobs and cover such a wide frequency range.
IMO If I was going for a 5.1 HT setup, then of course I would by both 805 and 804 and then add center HTM2 or 4 and then sub and call it a day. If on the other hand I was looking only for a stereo rig (2.1 or 2.0) I would go with 804D's. In your case since you already have the 805s, which I would assume are very close in performance and tonal balance to the 805D' - the cleaner more refined treble would probably be the major difference, but I am sure that the difference is not night & day. I would get the 804D's for the better bass/extension in FF and the slightly cleaner midrange. Especially since the difference in price would be going from ($5K for 805's to $7.5K for the 804's.)
I have actually listened to the whole 800 Diamond series and find that the 805 has a warmer, more soothing treble and mid-range thatn the 804. Since you are already going to spend this much, I would trade up to the 803's. They sound much better.
























I live near a fairly large metro area(Tampa,Clearwater,St. Pete) and there's only one bonafide dealer where you can audition speakers(luckily a B&W dealer). The list of quality speakers(Monitor Audio,Focal,Revel,Paradigm,Maggies,Boston Acoustics,better JBL and Infinity for a start) that I can't listen to seems endless. However,if you're considering 800 series B&W's(or comparable speakers), I think the effort is worth it. If I have to take a day off to hear 'em,it's a day wisely spent before spending that kind of money.


I have a couple of NAD amps in one of my systems,like 'em a lot! NAD is a high current amp,will make the CM1s sing!


