Thank you. I am re-building the false wall to accommodate them. KEFs are much less deeper than the JBLs and that will help visually.
The main reason is the height of the JBL C222HP. The centre speaker horn is too far down from the bottom of the TV. There is a single woofer model, C221, which can allow me to reduce that distance but there is no HR version of it. I do not know what will be the difference between HR and non-HR models but I'm a firm believer of using the same speakers for LCR. KEF speakers will allow me to reduce that distance dramatically.
Have you prepared any enclosures / boxes for it behind the wall? If yes, how many liters?
I have a false wall where these three speakers will be mounted around the TV as LCR with around 90l volume behind each. There are two JBL SSW-3 subwoofers, which have their own enclosures and two height KEF Ci200RS-THX speakers, which also have their own enclosures. A simple diagram is below. (Measurements are in metres.)
Amazing setup!
Subs operate below 80Hz. The wavelength at that frequency is more than 4m. The location of the subs will not have any affect within +/-4m.
May I ask why you orientated the centre speaker vertically if it is behind the screen?
I tested both ways. I was leaning towards the recommended all 3 speakers vertical but when I tested it, I preferred the sound of having the center speaker horizontal. Each speaker still has a speaker box which is identical with 136l volume sealed cabinets with fiberglass insulation inside.You'll notice, all of the tweeters are still at the exact same height. I found the sound more pleasing with the center woofers lined up at ear height along with the tweeter. Panning from left to right and vice versa is seemless. Each speaker is located in a precise location down to the milimiter to match distance from the padded walls. The result is pretty astounding. 2 channel stereo creates a stereo image where you can stand in the center about 2 feet in front of the wall and still swear the center speaker is on when its off. It works for my situation but every room is unique so others may prefer a different setup. I'm sure someone is cringing knowing I could have put all 3 verical but I wouldn't change it after having the room setup. I built false walls at the back of the room in the corners so the rear surrounds are mounted at 45 degrees. When sounds pan behind the seating, it sounds like there are speakers directly behind you so it works quite well. The 45 degree corners also seem to act as bass traps which is nice. Even with the side of the theater open to the main living area, the room correction in the receiver has done an amazing job of creating a well balanced listening area.
When I replied to you earlier (#14) I misread your message. I thought you were talking about the LR subwoofers. Sorry.
