Hangers in cavities - importance of symmetrical placement??

[Mangled]

See also this post:
http://johnlsayers.com/phpBB2/viewtopic.php?t=567

After a long break, from a construction point of view, I finally moved my entrance to the back of the room and I'm now ready to start on the control room walls as per John and Barefoot's proposals.
Barefoot suggested to create cavities near floor/wall intersections and fill them with hangers. However, due to the 3 spaces next to the control room this is not possible. See also attached floorplan.

So my main questions are:

- How important is symmetrical placement of these hangers in the room?

- Would it be sufficient to put hangers on the LH side only (floor/wall intersections).

- Any ideas on possible alternative locations to put the hangers?

- How much of them do you need for proper low end absorption?

Thanks!
Erwin

[John Sayers]

What are your ceiling dimensions? I understood you had a high ceiling where you could have hangers as per this drawing I did for you earlier on.

cheers
john

[Mangled]

Hi John,
The actual dimensions (in mm) of the ceiling can be found in the picture below.

I still need some room for framing and ducting for HVAC in the very top. Would this area be suitable for hangers as well?

Erwin