[tejascwboy]

I currently own these Reference II speakers.
RF 52-II, RC-52 II, RS-42 II & RB-41 II.
Wanted to know if I could up-grade them with your new 90x90 1" Titanium LTS Tweeter with Hybrid Tractrix Horn ?? 

[tejascwboy]

I currently own these Reference II speakers.
RF 52-II, RC-52 II, RS-42 II & RB-41 II.
Wanted to know if I could up-grade them with your new 90x90 1" Titanium LTS Tweeter with Hybrid Tractrix Horn ?? 

[Front Height Speakers]

Front height speaker. which is best to use ? thinking of the rs 42 II  to use as a frt height speaker ? to match the  rear surrounds rs 42 II or maybe to use the rs 41 II as frt height speakers ? or the covential  rb 41 II ? or rb 51 II  ???   Powered bye a  Onkyo TX-NR609 7.2 channel AVR 100 watts per channel. Currently running 2 RF 52 II, with HD 600 satillites & 8 inch sub. Ready to purchase the RC 52 II and  2 RS 42 II My Hold Up !!  The FRT Height Speakers !!!!!!!!!!.

What is your recommendation ? Your my last hope, so I can finally finish my speaker set-up ! Not enough direct information on the net to make the best speaker selection possiable.