Yep, $99. It may have to go up, since we're going to be doing a bit more work to match tubes (handling the flying leads is a pain in the ass, we need to build a test fixture) and some damping of microphonics. But even then, we're talking $119.
It'll never be as quiet as Magni, though...these tubes would never work in, say, a phono preamp or other low-noise application. But they work very well here. Surprisingly well for something that started as a "what if?" project. It would have never come to market if it didn't sound good. We have a number of projects like that--failed concepts. Ah, well.
We'll be posting the Vali on the website when it is available, which should be about 2-3 weeks.
For some tech details, Vali is a hybrid, using 6088 pencil tubes, triode-strapped, with a discrete bipolar follower stage that is somewhat related to the Magni's output stage. It is DC-coupled to the follower through a bipolar phase inverter and level shifter. The tubes run on a regulated 60V rail, which is fine for a tube rated for a maximum anode voltage of 67.5V. The bipolar part operates on a 27V rail. Its rated output will be about half that of the Magni.
Downsides? The microphonics (mentioned, and we'll be VERY clear about it in the FAQ) and no rolling. The tubes are soldered into the board, since their expected lifespan is in the 15-20k hour range, and it's what Raytheon recommended back in the day. Plus, even if you swapped in another tube, the rather unique operating range for these tubes means it probably wouldn't work.
And that's about all the engineer-speak for today. I have to get back to prepping at RMAF (a real, cosmetic Vali will be at RMAF, as well as a Ragnarok proto) and back to finalizing our facilities move. We're leaving our 1800sf place in Newhall for a proper industrial location in Valencia that is 5200sf, so we have some room to grow.
