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AIYIMA T20 – Audiophile-Grade Hi-Fi Tube Preamp in Development

But you have a valid point about the tubes as potential risks. :)

Incidentally, I think that every commercial tube amp should offer grilles around the tube for their tube amp. Maybe with the ability to pop in and out of the tube grilles. Or if it's called a tube cage maybe? Like these:

So, lay them on their side and cover with a solid-enough mesh grille so they can still be seen as Croftie did in the 80s :D



1751210854580.jpeg
 
When I was a kid in the 1960s we had tubes in our TV & stereo, and I had a tube radio, etc... Almost everything had tubes. You had to look-in through the cooling holes/slots to see the tubes and you had to open it up to remove/replace one. In the 1970s I had on old 1950s car with an AM tube radio, and of course you couldn't see the tubes.

Somebody gave me a couple of old tube power amps in the 1970s and if I'm remembering correctly, at least one of them (a MacIntosh) didn't have a cover over the tubes. I eventually gave them away and I haven't owned anything with tubes since. The MacIntosh sounded good but it was mono. The other one had some high-frequency roll-off that I was able to fix-up by making some "random-experimental" modifications but I didn't have any equipment to measure it and from what I remember it still didn't sound as good as the MacIntosh.

My mother had a "portable" tube radio that could plug-in or run from high-voltage batteries. Of course, totally enclosed. She said they used to take it to the beach. It "lived" in our kitchen and was plugged-in and by the time I remember it, I don't think it had batteries in it (too expensive?)
 
yeah, it's kinda preamp i'm looking, XLR + RCA, nice display, remote volume, one thing i'd change, make it passive/active/tube :)
 
Which tube will you be using? 6j1/5654 and compatible with Chinese 6j5/6ah6?
Or use a less common tube?
I find a lot of small tube preamps in this category don't provide enough inputs.
Perhaps BT, and a few inputs.
Design it to measure well?
I hope is 5670 / 2C51 and have a remote
 
Are any technical details forthcoming or is this all going to be pretty pictures?

The technical details will be announced very soon!
 
With only two tubes, any balancing would likely be using solid state devices.
 
If it measures well (issues below audible thresholds) then why not: variety in the market is a good thing.
If it doesn't measure well then why bother, at least for this audience (not meaning to generalise but ...)
 
A useless tube for modern applications unless you need vast amounts of gain and it can't drive low impedance loads unless it has gobs of feedback. Of course this preamp is probably going to have a solid state buffer because it doesn't have enough tubes to be balanced...
 
Exciting news! The AIYIMA T20 will officially launch on July 5th!

There’s a 15% new product discount on our official website — don’t miss out, stay tuned!

If you have any questions about the T20, feel free to reach out.

Let’s experience the unique warmth and charm of tube sound together — the heart of the T20’s design!
www.aiyima.com
Here are detailed images of the T20 — take a closer look at its stunning design!

#AIYIMA #T20 #TubeAmplifier #HiFi #AudioGear #NewRelease #Audiophile #MusicLovers

T20-详情图--手机版-782-1140-EN_03(1)(1).jpg

T20-详情图--手机版-782-1140-EN_10.jpg

T20 高级A+ 1464 600-2-5(1).jpg
 
With apologies for my stereotypical American bluntness: The cosmetics are... banal. :(
Why make a little box that looks just like every other such little box made for the past 15 years (irrespective of what is inside of it, or what it does)?

EDIT:
An example of a generic, and banal little "tube preamp" box -- this one probably about 5 or 6 years old (and still, to the best of my knowledge, available in some form or another).

DSC_0642 (2) by Mark Hardy, on Flickr
 
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Ok, I'm going to tip my hand as a high-end product design consultant. ;)
How about -- a tube preamp that looks like an iconic tube preamp?!
There's a cottage industry of "clones" of iconic tube preamps that are no more than PCBs that may (or may not) be related to the circuitry of such icons... how about going the other way?
The size and physical robustness of the icons might be off-putting to modern markets (and budgets), but some judicious re-proportioning might result in a product of reasonable size and enough heft to stay put on a desktop or shelf when cables are attached to it!
Here's my first choice for an iconic design "language" for a preamplifier:
1751546254241.png

Mark, I hear you say :) -- it's gotta have a display of some sort. OK, that's fine... instead of a big, soul-less black rectangle, how about that mirrored plastic (mylar-coated?) that looks silver but is in fact transparent when illuminated from behind?
This Zenith DVD/VCR :cool: combo, e.g., has such a display:



There are other preamp design choices of course:
conrad-johnson
1751546518588.jpeg

(funny -- I wonder what their inspiration was for this aesthetic? ;))
Audio Research
1751546583018.jpeg

Dynaco:
1751546647206.jpeg


Something to think about... ;)

I'll send a bill for my services anon. :cool:
 
Exciting news! The AIYIMA T20 will officially launch on July 5th!

There’s a 15% new product discount on our official website — don’t miss out, stay tuned!

If you have any questions about the T20, feel free to reach out.

Let’s experience the unique warmth and charm of tube sound together — the heart of the T20’s design!
www.aiyima.com
Here are detailed images of the T20 — take a closer look at its stunning design!

#AIYIMA #T20 #TubeAmplifier #HiFi #AudioGear #NewRelease #Audiophile #MusicLovers

View attachment 461024
View attachment 461026
View attachment 461027
Please make a version using 5760 / 2C51 tubes, is easy by just changing the wiring on the tube connector.
 
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The T20 Tube Preamp is now available — Limited-Time Launch Offer!
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