b&w htm2 vs. matrix 805 for center

I have a choice to pick up 2 of the 805 (8 something) matrix horizontal speakers for a center. I would put them side by side. I can do this for half the price of an htm-1. Money is a bit of an issue. I have Nautilus SCM-1 on the front sides and an RBH sub-can’t recommend it. 
Q.  Can I go with the cheaper pair of (same wood) 805/802? horizontals for a center or still the tweeters are that much inferior?

thx for the help

I mean the 805 or 802’s are matrix not Nautilus 

Confirmed. They are 805 Matrix horizontals. My SCM-1 Nautilus speakers are not D4’s or even Nautilus 805’s but should I save up for the real Nautilus HTM-1 or may I be satisfied with using the two 805 Matrix set together as a second channel. If anyone has had hands on experience please let me know. Sure the HTM-1 is going to sound better but $750 vs $1500, is there really, really a dramatic difference?