Speaker placement / treatment in half-cube room with tilted ceiling

[storing]

I'm looking on some input preferrably from people who have experience which such shape. I'll measure once I dive in, but before that I'm wondering if there are some things which are almost certainly a bad idea. Like, placing speakers along wall A which makes everything pretty asymetric.

Room is currently empty and pretty much anything goes, it would be convenient if a desk can be placed in it though. It's going to give a second life to some vintage gear I have lying around, speakers being Celestion Ditton 66 i.e. big floorstanders, probably not ideal, but worth a try. These are about 1m high so along wall B they'd be pretty far in the room already, perhaps too much so.

Hardwood floor, wall A is exposed old brick (should diffuse a bit), wall C is plaster on same brick, rest is gipsum board (Fermacell). The 'roof window' cavity is because of about 50cm insulation. Would be nice to sit there, but I have a feeling that's going to be a no-go Top image is floor, bottom is side view.

 

[flipflop]

This is your only option. Anything else would create major issues.

 

[storing]

This is your only option. Anything else would create major issues.

Thanks. What would be the main problem with reversing that and putting the speakers along wall B at about the same distance?

 

[flipflop]

Thanks. What would be the main problem with reversing that and putting the speakers along wall B at about the same distance?

Red: If you kept the same 60 cm distance from the speakers to wall B (as with wall D), the sloping ceiling would be too close to the speakers and create an unpredictable and undesirable SBIR.
Blue: If you were able to move them a further 40 cm (1m total) away from wall B, there shouldn't be any problems. I overlooked this option. Sorry about that.

 

[storing]

Ok, makes sense!