I'm thinking of building a full 7.1 system using identical line arrays across all speakers. This will be used in a dedicated home theatre room 15feet wide and 23feet long. The room will have 2 rows of seating. Now to the question.

I understand that using a full line of tweeters will help when moving around in a room and getting good sound either sitting or standing. But is this necessary in a dedicated HT where you will be seated all the time? Would needles type line arrays be good in this situation? Are there any other benefits of going with a full line of tweeter for my situation?

Thanks for you help.