Thinking about setting up another HT in my basement. I have the LSi 15's now hooked up in my current HT setup. I will probally buy another Parasound A51 amp and C2 controller. Now I would like to know if going from Rti10's right to the LSi15's I missed anything for HT sound. Not giveing the Rti12's a try, I love my 15's. But would you reccomend getting the 12's or another set of 15's. Would be used like current set up 50% HT 50% music. What are your thoughts ,THANKS. Oh and can the 15's really handle it if you turn them up.