I currently have the CSi3 due to space available and placement issues in my entertainment center. I am not happy with the CSi3 because it seems to thin to me with vocals both in movies and concerts.
The CSi5 is just to big for my entertainment center purchased by my wife.
I purchased the RTi10's and the CSi3 at Tweeter and probably paid to much. Tweeter has an upgrade policy and I wanted to look into what it would cost me to upgrade to the LSiC ( which fits) and possibly the LSi15's. @ $800
The guy at Tweeter told me that they match up the LSiC with RTi's for people and it seems fine. I am not sure I am one of those people. I currently have the LSiC on order and thought I would give it a try at a @ $300 upgrade. I think CSi3 sell for around $125 on ebay plus shipping and the LSiC are @ $300-325 plus shipping. I got to do some more research.
I have not even looked into what RTi10's would sell for and what LSi15's would cost. I am guessing I would save @ $200 doing the ebay deals but it is a pain in the ass with big speakers and the speakers I would end up buying probably would not have any warranty.
Once the new RTiA series is available the upgrade policy is no longer available and the value of my current RTi series will probably take a initial step nose dive.
I do like the LSi9 but the Tweeter guy did not think I would like them for HT. I also have two young kids and the thought of 40lbs speakers on stands is a disaster waiting to happen for both parties.
So I ultimately the question is,
Is it worth it to upgrade through Tweeter to the LSiC and LSi15 and will my amp with 150 watts at 4 ohms be enough to make them sound better than the RTi10's?
Interestingly the guy at Tweeter told me he tries to "steer people away from LSi series" because they need more power than an AVR can put out and they don't sound good because they don't have an amp to power them in their stores. Double edge Sword.