Greetings from Canada. I'm interested in some Valencias for sale near me. They have the 416-8B 15" woofer, original N-800 8K crossover, 811 B horns, 806 8A compression driver. My listening room is 18 feet wide and 29 feet long so I have a lot of room. What would be the ideal distance between the two speakers and ideal distance to the listener? What would be the optimum distance from the speakers to the wall behind them and to the side walls? Some commenters describe Valencias as having a very noticeable and shouty horn sound and an aggressive upper midrange and lower treble. Does a large room like mine help to mitigate these issues. Do new caps also help? Thanks for any advice.