hi,
i own a pair of arcus and have heard most of the other avalons, though not the new opus w/ceramic driver. i'm sure many "higher-end" avalon owners will take offense to this but i'm gonna say it anyways: given decent amplification, most avalons sound VERY similar to one another. this is not a bad thing because the avalon house sound is great. but, i doubt if the sonic differences among those 3 speakers you mentioned will justify even a fraction of their differences in cost. get the regular opus, spend the extra money on better components and be happy. jhmo.
i own a pair of arcus and have heard most of the other avalons, though not the new opus w/ceramic driver. i'm sure many "higher-end" avalon owners will take offense to this but i'm gonna say it anyways: given decent amplification, most avalons sound VERY similar to one another. this is not a bad thing because the avalon house sound is great. but, i doubt if the sonic differences among those 3 speakers you mentioned will justify even a fraction of their differences in cost. get the regular opus, spend the extra money on better components and be happy. jhmo.