
I have not heard the "full" HV akido.
There is not much more talk about it because nobody builds them commercially. The 4 DIYers (OK, so perhaps its more than 4.... but its not many) who have built one chatter amongst themselves, and the rest of the world buys the standard crap they are told to buy.
Do you remember how much chatter there was about Pimetas and PPA's when there were 3 DIYmot's building them? The pimeta has only gotten better since 2007, odly nobody ever seriously considers it as a home amp. PPA gets mentioned even less often.
Funny how cyclical everything is here.
I have never even heard of either of the amps you mentioned, admittedly I am a fairly new member.
Something achieves a great status, then eventually that status harms it more than it does help it, and people forget about it.
Kinda like the R10, people say it is the best dynamic headphone ever, even those who have never heard it. In turn, a lot of people think that it is only good because people say it is, and not actually fundamentally good. Who is to say who is correct? And at the prices they ask, its no wonder they don't sell like hot cakes.
Availability affects things a lot too, for better or for worse.






