N805's vs N802's

A lot depends on your room size. I am using the N802, HTM1 and 3 additional ASW-800 Matrix subs on C,R,L channels, you wouldn't beleive the amount of information they add. I use 2 other subs for front and rear LFE subs but my room is 28 X 14. I crossover my subs around 40Hz on the R,L and they are excellent in 2 channel as well as surround sound. I think you will still benefit from sub and will just crossover differently for either one but the N802 will play better mid bass information IMHO.

I agree with Krell1, but would also like to add a comment about how much power your amps have, and how loudly you listen. I used to have a similar speaker config (N805s + REL Strata III). I always thought the N802s needed a lot of power and some significant volume to really open up.

Without knowing your listening habits and what comprises the rest of your system, I'd make a guess that, assuming your system sounds great to you as-is, upgrading only your speakers to N802s will disrupt the balance you enjoy. YMMV.

I would add another REL . I have just done that in my system. I would stick with the 805s if I liked them. I have an older pair which I like.

True about power.You can use 40 watt tube of 100 watt SS with 805N now way you can do that above 804N.I sold Krell and B&W from'96 to 2001. (just before change to S/D series but not much difference on this issue).The 803/802's had close to 90 db stated efficiency at NOMINAL 8 ohm load.But during play a nasty impedance swing the B&W's could go down to a high 3 ohm load.They nee current.A good (not cheap receiver but I assume your not going to go below Rotel,Adcom.NAD etc and probably have better).I think in mid sized room having 200 watts is must.Never Always thought with original series that 803N was best value and now they have 803S (why anybody bough 804's I could never figure).But now you can get phenomenal 803D with better high end and as much bass do to extra driver as original 802.Was not a "deal" but well priced at $8K.Now at $9K or 803S at $6K well you'd be judge.Used 802N's are fine if you have space.But if using HQ sub in 5.1 I'd go 803S and if not 803D (used $5500-$6K) is a great speaker.IMHO.But 805 and REL is great combo.You get better imaging with it but 803/802 will give you much bigger deeper sound stage.
Cheers
Chazz

Yes, the N802's will require a lot of good clean high current power and also like to be bi-wired or shotgun wired to sound their best.