There is a bit more going on inside of an Aperture. The patent is available online and will give you insight on the construction. Although this won’t tell you how they sound. For bass trapping, I would look elsewhere though. For reflection points, Apertures are my favorite.After a little prodding from a member here, I'm gonna investigate Artnovion panels. Like Stillpoints Apertures, they are hybrid absorber/diffusers, but 40% more affordable. Look very smart too.
Eiger corner bass traps and Avalon Flow hybrid panels for front and side walls.
HelloQuestion..... within reason can one have too much diffusion On the front wall in a two channel audio room?
Bass traps are DYI and offer no diffusion. A mistake I made when I built them.
My front wall is only 11 ft wide.
View attachment 70414
Thanks in advance
Proper diffusion needs a lot of space and distance from the speakers - in most rooms diffusors just work as partial absorbers and partial reflectors.Question..... within reason can one have too much diffusion On the front wall in a two channel audio room?
Micro, that's precisely how my system works, 2.5m behind spkrs, 10 no. 1200x300x12.5mm recycled polyester panels, installed in louvre pattern 45° to wall, just overlapping. Some absorption, and gentle diffusion.
Your polyester wool panels provide no meaningful diffusion @spiritofmusic. They are strictly absorptive. Effective acoustic diffusion is derived from specifically shaped reflective surfaces typically, or in the case of BAD (Binary Amplitude) Diffusors, a reflective face plate with a mathematically derived pattern of holes or slots cut into it's surface to expose an absorptive material (with several inches of depth) behind the holes in the otherwise reflective face plate. Technically the latter is actually a hybrid of diffusor and broadband absorber.Whatever is in these recycled polyester slabs, because the proof is in the eating...tangibly more natural imaging/lack of hash in mids, greater low level resolution/microdynamics.
I had tried more disruptive diffusion, but found effects were too dramatic, almost too dry and tizzy.
VinceYour polyester wool panels provide no meaningful diffusion @spiritofmusic. They are strictly absorptive. Effective acoustic diffusion is derived from specifically shaped reflective surfaces typically, or in the case of BAD (Binary Amplitude) Diffusors, a reflective face plate with a mathematically derived pattern of holes or slots cut into it's surface to expose an absorptive material (with several inches of depth) behind the holes in the otherwise reflective face plate. Technically the latter is actually a hybrid of diffusor and broadband absorber.
The unpleasant sonic artifacts you describe having experienced with "more disruptive diffusion" sounds a lot like you either did not have a sufficient balance of absorption to reflection, and thus an overly reverberent room... Or you were not observing the minimum sound source/MLP distance requirements which all phase grating diffusers exhibit. If the loudspeaker or listening position is within the diffusor's nearfield (less than 4 wavelengths of the diffuser's low frequency cut off), the not yet fully integrated reflections from the diffuser will manifest as an odd wiry, tizzy quality due to comb filtering.
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