At least with the Ascend Towers you can try them in your home risk free for 30 days.
I am in a similar situation, looking for new speakers and live in an area where there is not a decent dealer within 100 miles. So, I am also forced to use the worst possible method to evaluate what might work for me. Add to that, many of the brands don't support warranty claims if you purchase from a dealer on line and won't authorize their authorized dealers to sell them that way either. What a load of crap.
Anyway, after about 4 weeks of reading, evaluating specs and browsing, I am basically down to Salk HT-2 or Revel f208's. Salks are probably better looking speakers and they have excellent drivers and components. The Revels are easier to get and available now. Salk currently has a 75 day production time between order and shipment.
I have not read a single negative review on either of them. Good luck with your selection!!