I have built two diferent sets of Rhythm's the original ones with the 9500 tweeters and a set of Signatures. Both have the external X-overs. I have also built a center channel Signature that has the x-over insided and it just doesn't sound as open. There are alot of variables with the center channel verses the other speakers but I do believe you will get better results with an external crossover.
PS, I much prefer the sound of the Revelator tweeter over the 9500, jsut goes to show personal preferences.
PS, I much prefer the sound of the Revelator tweeter over the 9500, jsut goes to show personal preferences.