Sure Justin, I'm very pleased to have been able to shine the light of truth and justice upon you. Anytime.
it's cutting down on your strongest rear wall reflections, which are a degree of smear of the direct sound. and maybe breaking up a standing wave too.A question for my learned colleagues out in la la land (sorry, audio land Lol).
My room is very large by UK domestic standards, approx 4x the size in fact, but 70W SETs on 101dB efficient Zus augmented by 300W Class D downfiring subs work very nicely.
My Zus are 8' from front walls, I sit 13' from the Zus, leaving well in excess of 25' behind me to rear walls.
I was perusing the report a while back from Emile of Taiko in his new demo room, even bigger than mine, similarly large distance behind listening position, and he had installed a diffuser some 0.5-1m+ behind his listening position, noting a definite uptick in SQ from his Alsyvox's.
That got me thinking, and w my PETs acoustics fit out, I had a bunch of defunct GIK panels to hand.
So I've just plonked the double thickness absorber about 0.5m behind my seat, and am noticing a small but nonetheless worthwhile improvement.
Imaging seems "shored up", greater flesh and density. So, a solidifying in the image and tonal density I'd say from upper bass well into the mids.
Removing the panel highlights a hazier, more "watery" image.
What's interesting also is that there's deffo a variance in the effect dependent on distance of panel to rear of my seat. Closest to seat is better than no panel, but just a tad less spacious, and a tad "thicker" than 0.5m back, I've yet to try closer to 1m.
Any thoughts as to what might be happening here?
MarcWeird Mike, my rear wall is so far away, I find it hard to believe it can have that much influence. Similarly bass nodes, although early in 2022 I'm due to install my final bespoke CosyWool traps in rear corners. I suspect now these will be significant.
After you deal with early reflection and bass reverb it is often that mid range reverb that may need to be reduced a little ( with caution ).. particularly if you have a low furniture count in the roomPhil, something definitely is happening, and your take might be right. My rear wall is 40' from my Zus plus another 25' reflected from rear wall back to my listening position. Obviously that 65' isn't enough to totally diffuse, leaving some tendency to swirl or smear. If this panel is doing something, anything, to obstruct this, then it's a positive.
I guess if I was way closer to my rear wall as I was in my old apartment, absorption/diffusion on that wall would have been sufficient.
The panel is 4' high, so yes, reaches head height.
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Very nice. Got to love an audiophile Santa Marc… mine is stashing some Moly tubes to go in the stocking with the new Radian beryllium compression drivers Santa has already kindly pre-delivered Ho ho ho… covid transit delays are apparently crushing all the North Pole orders. Besides got to get off Santa’s naughty boy list and back on onto his nice and more natural boy list.Best early Christmas news ever. My big order of six replacement Soundsmith Straingauge stylii, and upgraded energizer unit, finally ready to be shipped from NYC.
Peter Lederman has put in a sterling effort on top of the most trying circumstances to come thru with this consignment, from my point of view being without LP replay for eight months has been way too long.
I've spent the last six years focussing more on optimising my system than buying/enjoying new LPs, in 2022 that imbalance gets fully remedied...I have the Penguin Guide To Classical Records from 1982 to start helping me build a proper classical collection, and pristine stylii to make use of.