Placement of RFZ/Bass Traps

[Lawrence]

I first want to thank Joel (Ready acoustics) for some very interesting products etc..


Here is some pictures of my room(please excuse the mess) there is a weird resonance at the splayed ceiling part  of the room FYI I have plenty of 705/703 rigid glass to play with along with mid/hi freq quadratic diffusion on the back wall.. i have large diaphragmatic bass absorbers on the front wall (I can put them anywhere) they are actually old acoustat monitor 4 and monitor 3 electrostatic speakers with damped membrains they are  stacked ..Looking for educated ideas what to do with the room...creative or not....thanks
BTW room dim 25.5L X 14.3W X 8.5H In you guys oppion what color cloth is going to look good with what i have??











Lawrence

[Joel DuBay]

Hi Lawrence, I'll be replying through the Ready Acoustics website, and get you a specific diagram - placements scheme for this room as is customary when doing business with us.

But if anyone else wants to chime in, by all means -

[ms]

Just a couple of quick thumbnail  impressions which are not meant as a complete ‘analysis’!…

It’s a bit difficult to get a complete dimensional image of the room with relative locations of the various positions.

I am not quite sure what you mean by “resonance”. If it is not LF ‘boom’, might this be flutter echo from the parallel side walls, as there appears to be no damping of early order reflection points sufficient to create a well defined Initial Signal Delay gap… Simple ray tracing will identify these points if you are not using measurement software (which I prefer as it quickly and atomistically cuts to the chase regarding the actual nature of more complex behaviors with ease).

Beyond this, as the Q of the speakers is not ‘well controlled’ sufficient to avoid the ceiling ‘dip’, I would suggest placing sufficient absorption on the ceiling incline closest to the speakers and on the bottom of the incline in the absence of suspending a cloud to achieve the same end.

Additionally, you are going to want bass trapping (and the ceiling will make the modal response rather interesting as the space will function as a partially coupled space!) as well as, most likely, additional absorption surface on the front wall to address any remnant reflections coming off the ceiling dip and cabinet surface radiation and the side walls/ceiling in order to further refine the ISD gap.