Originally Posted by KNKKNK
Yup.. The P10Si's are for balancing.... I was never able to find truly compelling (convincing) info on the advantages of full range speakers for strictly movies, and their seemed to be valid points for both sides so I had a tough time deciding on the P815's and opted for the P8's and (2) P18's instead. Trying to achieve the same visceral impact as I got from the 4 x 18 IB in the last theater was a priority for me.
However, I will construct my baffle to allow for the addition later.
I am very interested in hearing others opinions for using a full range speaker in this scenerio..
The P8 is -3db at 80Hz, achieving THX certification on its own with this performance. Perhaps not extremely compelling, but from what I've seen and the calibrators I've spoken with, there is an advantage to setting the LCR crossovers with the LFE lower....in the 50Hz to 60Hz range. And the three 15" subs for the LCR certainly would help to pressurize the room for that visceral impact you seek.
But I have to say, I had the privilege of experience KBlaw2010's Erskine designed Procella room and can verify first-hand that those dual P18s are simply incredible. Unbelievably powerful but with full tonality and control. I have never heard bass reproduction that good in any system .... never.
You may not miss the three 15" subs,but I am willing to bet that allowing space for the 15" subs will be burning a hole in your upgrade pocket!!
I ended up getting three P610s for the front, six P6 for dual sides and surround speakers, two P10si balancing subs.....and ran out of $$$ to purchase the subs
, so I'll have to DIY the LFE for my system.
One last question....are you pre-wiring for any 3D audio codec, such as Auro 3D or Dolby Atmos?