I have not heard this, and I have no idea what Pete might have done, but the specs on those NuTubes are not promising. The good is that they run at low voltages and have a mu of 12 which is probably nice for a traditional tube to buffer hybrid amp without too much gain. The bad is that they have a plate impedance of 300K (higher than most pentodes), don't draw enough current to even really push a buffer, and draw nearly as much grid current as they do plate current. Gm is 40uS (0.00004S - compared to 0.0125S for a 6922 and 1.3S for an IRF510) and the limit to how much they can be biased means that they'll clip on a lot of modern sources. If you ran about 70 of them in parallel, you'd almost be on par with a 12AU7. I assume they are designed for overdrive and other effects pedals, and they probably work fine there.
this is the first, and definitely not the last r2r discrete compensated dac
https://kitsunehifi.com/product-category/audio-gear/dac/
i'm sure others will be duplicating these ideas soon, market is about to make a major change again
absolutely insane (as in waste of money) to spend more than $2500 on a moving target.
\m/
75 lb pearl.
Segovia, Spain at night.
King River, Australia.
A Milky Way Shadow at Loch Ard Gorge.
2100
Cosplay.
Comares, Andalucía, Spain.
Dune 45 in Sossusvlei.
Langøya Island, Norway.
Moskenes island, Norway.
Swamp - Potsdam, Brandenburg, Denmark.
The Twelve Apostles, Victoria AU.
Mt. Rainier Sunrise Shadow.
Salt Pan of Sossusvlei, Namibia.
Lightning over Lake Ray Hubbard, Rockwall Texas.
Shasta Lake, CA.
Some of us are now on this phone for the 2nd, 3rd, or 4th time. Perhaps there's a reason we keep coming back. Admittedly, I currently have a loaner, but I have to say that I think the HD 800 kicks some ass, especially out of the Luxman. Now, apparently, this HD 800 is modded with foam, toilet paper, and snot, so I'm not sure what bearing that has on anyone else's experience, but I guess I'm just saying that this headphone does not suck.
Got an email from Todd @ TTVJ, he has this for pre-order, looks interesting with a Korg "NuTube" triode....
http://www.ttvjaudio.com/Apex_HiFi_Sangaku_Headphone_Amp_and_Pre_Amplifier_p/aaa0000998.htm
http://www.apexhifi.com/Sangaku.htm
I talked with Pete about this amp when I saw him in Oregon in June. He was very excited about the prospect of using these new tubes that aren't like anything that I've ever seen (including Mikhail's tiny submarine tubes from his booby amp near the end of his run). I'd love to hear this thing and hope to demo it sometime.
So you heard this on a computer based Tidal client. Interesting.
That pretty well absolves the Android USB driver. I compared Tidal via USBAP (which has its own driver), Tidal via its own client, and the same songs, although different files, though Squeezeplayer from my own server (uses the native Android driver) and couldn't hear any difference between USBAP and Squeezeplayer. But I did between the Tidal client and the other two. What the heck could they be doing to the signal in their client, I wonder? Level normalizing, badly done, maybe? Hmmm
Meanwhile, I looked at Roon. It looks brilliant. It looks like they've overlayed a an engaging interface on DLNA, Sqeezebox, and whatever other protocols they feel like, so people can use their existing audiophile gear. It's like Vortexbox all grown up. With a sustainable business model. I looked on their Linux page and it looked competent and straightforwardly documented. I think I'll whip up a virtual machine and give it a go.
It's pretty good. Haven't had brunch, though.
Claire was inspired by Provençal gratins so our own tomatoes and peppers and a squash (not pictured) became a delicious gratin tonight.
Got some new-to-me wheels for the mtn bike. I probably dropped a solid half pound off the bike today.
Front: Chris King with Mavic X517 Ceramic
Rear: Nukeproof hub and rim
Both with Specialized tires.
**BRENT**