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By Primare Knob
I am planning for an HT room and would like to go Atmos/DTS-X. It is more the restricted Atmos setup with the ceiling speakers that is making my life difficult. I have an exposed ceiling with the roof studs starting at 220cm and the ceiling at 250cm.
In the picture, the black cubes are the 7 channel setup, (I know, no center or sub in the picture), the orange cube are Atmos 35 degree angle from LS, and the green are Atmos 45 degree angle from LS speakers. The six grey cubes are "chairs" and the blue box in the back of the room is a pantry that I cannot move, I might build a cabinet in the other corner in the back to mirror it.
I was thinking for the LS and RS to go with bi-pole speakers, to suit the back row. For the LSB and RSB I will probably go with mono pole speakers due to the pantry (and possible cabinet)
For the ceiling speakers I was thinking to go with box speakers angled toward the LS. These speakers within the Atmos preferred dimension will sit smack bang against the exposed roof stud. I could build a lowered floating ceiling to mount the speakers in, but they exposed roof studs will still be in the way since I don't want to lower my ceiling to 220cm height. Going Atmos 7.2.2 will have the same problem that the ceiling speaker will be sitting smack bang against the next exposed roof stud.
What would be the best option if not DTS-X
By Primare Knob
I am looking into building a home theater room in my garage. The max size (external) is 2.57 height, 4.35 width, 6.00 depth.
Started my research about golden ratios, of which there are a few and then came across this website which seems to be to most modern one. http://www.acoustic.ua/forms/rr.en.html
Funny thing is that almost none of the known ratios come out very well in this new model.
I also came across this link on the forum http://www.bobgolds.com/Mode/RoomModes.htm but I am not sure how to use or read this.
Getting the impression that there are different ideal shapes for music or HT rooms, like the trapagon.
Lots of confusion about dimensions and shapes at the moment.
The things I want to achieve in this room is.
7.(2) audio setup expendable to 7(.2.)4
Center speaker behind screen
min of 3.5 meter viewing distance from screen
min 4.4 projector throw distance
5 seats 2 rows
The garage is double brick, concrete slab, front and back roller doors and would need to build a new side wall to create the room with entrance door, flat colorbond roof 10cm insulated and particle board lining with 8 exposed timber beams over the width hanging 27 cm down form ceiling.
I would like to do the room build myself. What guidlines to follow in creating the shape and dimension.
I have used PBK on and off for a couple of years now. When dealing with my Monitor Sub 12s, the difference the PBK made wasn't always huge, but it flattened the response quite well. I recently had the good fortune to acquire a Paradigm Studio Sub 15 at a vastly discounted rate. After lugging and placing the fifty-something kilo beast into place, I was... frankly too stuffed to worry about the room correction. I plugged it in, and started to watch "Day After Tomorrow"... excited to experience nice bassy goodness. I was not disappointed.
About 5 minutes into the movie, there's a guy drilling into an ice shelf, and all hell breaks loose as a few thousand tons of ice breaks off and falls into the sea... This is where the 15" sub reached down, and physically shook the house. The cracking of the ice was just wow! Perhaps there were some room-based quirks that happened to emphasize some frequencies, but I certainly didn't care at that point, I knew I was going to correct it later, expecting the sound to improve, and at the very least, perhaps reign in some of the peaks and troughs.
The next day, I updated the firmware in the 15", and then fired-up Paradigm's "Perfect Bass Kit"... which is a sub-specific version of Anthem's Room Correction (ARC), and did a fairly standard calibration.
I watched the same scene, and the physical impact was gone. There was no amazing crunch, thump, or boom, no really deep extension. It was as if the power and majesty of the bass, was reigned back beyond what I would have chosen for it. I've been meaning to have a look at it, but haven't quite gotten to doing a proper investigation yet.
I just want to see if anyone else has had similar, or completely different experiences with PBK. Any settings I should try?
Any advice, thoughts, suggestions are welcome!
All the best!
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