Thanks to sponsor @Bloom for offering SBAF this loaner. Totally worth it and I am impressed. Frequency response: https://www.superbestaudiofriends.o...k-ages-of-ortho-tech.10824/page-2#post-344107 CSDs: https://www.superbestaudiofriends.o...k-ages-of-ortho-tech.10824/page-2#post-344109 Burst attack and decay envelope: https://www.superbestaudiofriends.o...k-ages-of-ortho-tech.10824/page-2#post-344120 What sets the D8000 Pro apart: https://www.superbestaudiofriends.o...k-ages-of-ortho-tech.10824/page-2#post-344111 Compared with Susvara: https://www.superbestaudiofriends.o...k-ages-of-ortho-tech.10824/page-3#post-344356 Distortion vs SPL: https://www.superbestaudiofriends.o...k-ages-of-ortho-tech.10824/page-3#post-344358 Impedance: https://www.superbestaudiofriends.o...k-ages-of-ortho-tech.10824/page-4#post-344629 Luxury gear should be luxurious: https://www.superbestaudiofriends.o...k-ages-of-ortho-tech.10824/page-3#post-344281 Thoughts on retrieval of low level information (subjective): https://www.superbestaudiofriends.o...k-ages-of-ortho-tech.10824/page-2#post-344114 In a nutshell: https://www.superbestaudiofriends.o...k-ages-of-ortho-tech.10824/page-4#post-344631 Obligatory janky photo here. The janky photo is not an insult toward the product, but rather it's an SBAF tradition - a subtle dig against the typical glossy audiophile reviews - a reminder that what counts more is the content. Frequency response preview here: For those not in the know, Final Audio is a very interesting boutique Japanese audiophile company that makes all sorts of stuff. For sure they are willing to experiment. My experience with Final in the past has either been "WTF is this?" (can't blame them for trying) to "now this is rather interesting". Fortunately, the D8000 Pro Edition falls in the latter category. I don't expect anything from Final to have near perfect frequency response, fantastic measurements, or even cogent marketing speak. The product page goes on and on about being able to properly reproduce bass tones which in my experience, orthos don't much trouble doing (the D8000 is an ortho), and weird stuff about an Air Film Damping System. Maybe this is Star Trek technobabble (Japan-Fi technobabble), or perhaps something is lost in translation. I really don't give a crap because at the end of the day, there definitely something to it. Not since the Abyss AB1266 have I heard monstrous bass notes with such clarity. The price is astronomical, but perhaps not so if you really yearn for a vintage ortho such as the NAD RP18 (https://www.superbestaudiofriends.o...-rp18-and-yahama-yh-1-yh-3-orthodynamic.9208/). The old NAD RP18 / Fostex T50RP (the 1970s OG ones) sounded like shit and needed mods to be listenable. At least the D8000 Pro, while not perfect, is listenable out of the box. The frequency response is linear with the exception of a dip around 3kHz (think BBC dip) - the antithesis of that horrid Chi-Fi harsh female vocal IEM / ER4S dealio - and a spike near 10kHz. The good thing is that the rest of the upper mids aren't muted so we can still get some edge and crunch if it's in the recording. The 10kHz emphasis adds a bit a definition, a bit of sharpening, but at least the zzz isn't the shhh which emphasizes sibilants and there's no lower treble hardness or glare. Timbreand transient-wise, it's got a bit that vintage ortho thing going on. Perhaps only two current orthos give me that vintage vibe: Verum and now this. (Nothing else, not Abyss, not Audeze, certainly not HiFiMan, although these companies do have their own sound). I would be curious to see the diaphragm of the D8000 Pro and its traces. @rhythmdevils and I had a laugh at how backward the "art" of orthos has gone in the past 50 years or so, comparing the 70s stuff to the classical works of the ancient Greeks and Romans, and the current stuff as being in the Dark Ages. Has Final brought us back to the Renaissance? I'll bring you guys more measurements throughout the week. @ChaChaRealSmooth mentioned that these were interesting enough. I on the other hand am quite smitten by them and only have only appreciated them more and more with each nightly listen. The D8000 Pro kind of grew on me. They weren't all Sturm and Drang from the get-go like the Abyss AB1266 which I onced owned. The D8000 Pro's qualities are more subtle and don't shout look at me, hear me, I'm an Instagram ho - and this is a good thing.