Has anyone heard the BACCH-SP "purifier" 3D audiophile imager?

My system is up to date in my profile. You'll see it's rather modest by high end standards here, though not mid-fi level either. ~$5k investment in the Bacch4Mac is not out of line for it at all. The SP ADIO, though much more costly, easily co-exists in some very high end systems, certainly nicer ones than mine. There is also an intro level software only version that's ~$1k, and it goes up from there. My speakers offer it as a "u-Bacch" option and it installs simply and works quite well.

What gear are you all using with the BACCH? Mahgister is talking about a $1000 system??

There are reports (some quite credible) that one can obtain much of the benefit of the $30-50K BACCH products by moving speakers close enough to create a mostly nearfield listening experience. That’s suprrising to me b/c if merely eliminating acoustic crosstalk is the goal, why wouldn’t headphones do exactly the same thing? (OK, I can guess why, because hps eliminate the normal reflections that our brains use as imaging & soundstage cues. I think.) And I realize that it’s simply not possible, or even desirable, to sit that close to speakers in many setups. But if I had more time on my hands, I think that trying that out might be a cool experiment.

My system will benefit from the BACCH system no doubt...

But i am very happy and his value is 1000 bucks... I decided to wait a bit before buying the BACCH. My income will be difficult to imagine to sustain living for many here by the way... Many dont leave on the same planet as me ...😊

For headphone : I own one of the best designed headphone ever acoustically...

Modulo some modifications i introduced this AKG K340 create an "out of the head " experience when the recording reflect great hall recording, church and many smaller Hall but WELL RECORDED ...the reason : it is his designed internal dual acoustic chamber with a dynamic cell and an electrostatic one add to that 5 tuned passive resonators resonators..

When optimized, which i did my soundfield is extraordinary and timbre and bass ...Almost all headphone had no interesting and refined acoustic chamber design this is why i dislike headphone, no crosstalk yes, but no acoustic room shell tuned the right way ... ( too costly on research too little profit said Kennerton who know his work when i asked why not designing a new hybrid 😊)

Now i can answer you remark about nearfield listening...

I listen in nearfield, not only that  reading Choueiri genius article i implemented for experiment a mechanical crosstalk barrier in my nearfield set up which experiment  make more sensible to me  the astounding  loss of spatial information in ALL STEREO SYSTEM by design...

I can assure you that Choueiri is right if you read his articles, because i tested this mechanically; then i know why my completely imperfect method so revealing it can be (impractical for most user i used high  wood panels separating the speakers for each ear) this mechanical method cannot compared one iota to the BACCH .. I dont need to buy BACCH  to understand basic acoustics.. 😊

Now I'm curious and maybe I will shift things around to get more of a nearfield listening experience,

I'm dubious, though. My desktop planar magnetics produce a nearly 100% nearfiedl listenign experience and I don't hear the 3D-soundfield FX described in the BACCH reviews.

I'll have to looik into this $1000 software option, although I have no idea how I'd integrate it into my computer-less Harbeth system.

The BAACH software will need hardware to run like a MAC.

I too am looking at the BAACH 4MAC as their 20k+ hardware option is out of my budget. But since I have a DAC/streamer that connects directly to the Ethernet, not sure is BAACH can be used in my setup. I asked BAACH manufacturer Theoretica by email, but they never replied