A 4350 is a lot of speaker, two woofers, a mid woofer, a midhorn and a super tweeter. I'll take a 4355 any time, two woofers and one horn. No unneeded ring radiator, no mid woofer and no 3 way crossover. Much less distortion in all of it drivers a smoother frequency response and less phase distortion. Just look at JBL's latest M2, one woofer one horn and even less distortion and better frequency response. That new technology has allowed us to return to two way speakers. The fewer the drivers the better the staging and and better imaging. I know they are pricey but they are something to consider. $18,000 sounds expensive, but compared to a DD67000, they are relatively cheap.