Tung Sol 6SN7GT roundplate (1940s), my favorite tube. Not cheap and not easy to find matched pairs with low microphonics. But this tube does everything well.
Old Legendary tubes vs New Kids on the block Amperex/Siemens/Tele vs Psvane/TAD/Shugaung
Posting this on amps board, as pre tubes can make quite a dif on the amp ound.
I just sent off all my oldstock tubes to a guy who will sell them for me on ebay,,I am going all ~New kids on the block~ pre tubes.
I am saying goodbye to my fav~ Amperex BB.s
The only old stock i am keeping are the 2 tall bottle SQ Philips EC180's which will go in the AU section of the Defy,,i love the cool looking tall bottle of the EC180,'s, But i also bought some Psvane Au's , a sthey look quite impressive with taht double plate at the top,,,Will add some TAD AU's also on wish list, they also have thae cool looking double plate./high tech components.
I will roll the 3 labs, and see wich has the finer resolution/soundstage.
The 4 AX's will have to be the Shugaung, Maybe later on will add the TAD.
The cayin cd17 takes 4 6922's, for those I will go TAD, as they have the cool looking double plates.
Which brings up this Q...will the old legends hold their top $ prices going forward, as folks begin cking out the new labs offerings,
Psvane/Shugaung/TAD.
I've not heard any of the new, as yet, I have the AU's/AX's arriving later this week. Since i sent all my old stock au/ax's off, can't compare to these new labs. Only compare from what i reacll the Defy sounding like with Old stock.
However as you guys know i still have that cheap chinese clone which is crippling the Defy's performance.
The cayin SC6 is still a ways off, so a true compare could only be made at that time.
The cayin has 4 AU's, will roll both TAD and Psvane T series AU's. , Psvane has a new ax out called T series,,,I will buy both the Psvane and the TAD, see which comes out for high resolution of fq's.
Have you guys heard any of these newer labs, vs the old legends.
On the power tubes, I have EH KT90's and also chinese KT88's i bought cheap off ebay,,so will roll those when the front tubes arrive.
Will not rebias the amp,,it will be a justa shortb 10 minute testing.
If I like the 88's over the EH90's,,I will add the Psvane KT88 C version to wish list, The C version is the newer KT88 from Psvane called the Classic 88, the older version is called the hifi 88.
I will post notes over the comming year as these tests will be ongoing during the year 2020.
What say you about these new kids on the block?
I just sent off all my oldstock tubes to a guy who will sell them for me on ebay,,I am going all ~New kids on the block~ pre tubes.
I am saying goodbye to my fav~ Amperex BB.s
The only old stock i am keeping are the 2 tall bottle SQ Philips EC180's which will go in the AU section of the Defy,,i love the cool looking tall bottle of the EC180,'s, But i also bought some Psvane Au's , a sthey look quite impressive with taht double plate at the top,,,Will add some TAD AU's also on wish list, they also have thae cool looking double plate./high tech components.
I will roll the 3 labs, and see wich has the finer resolution/soundstage.
The 4 AX's will have to be the Shugaung, Maybe later on will add the TAD.
The cayin cd17 takes 4 6922's, for those I will go TAD, as they have the cool looking double plates.
Which brings up this Q...will the old legends hold their top $ prices going forward, as folks begin cking out the new labs offerings,
Psvane/Shugaung/TAD.
I've not heard any of the new, as yet, I have the AU's/AX's arriving later this week. Since i sent all my old stock au/ax's off, can't compare to these new labs. Only compare from what i reacll the Defy sounding like with Old stock.
However as you guys know i still have that cheap chinese clone which is crippling the Defy's performance.
The cayin SC6 is still a ways off, so a true compare could only be made at that time.
The cayin has 4 AU's, will roll both TAD and Psvane T series AU's. , Psvane has a new ax out called T series,,,I will buy both the Psvane and the TAD, see which comes out for high resolution of fq's.
Have you guys heard any of these newer labs, vs the old legends.
On the power tubes, I have EH KT90's and also chinese KT88's i bought cheap off ebay,,so will roll those when the front tubes arrive.
Will not rebias the amp,,it will be a justa shortb 10 minute testing.
If I like the 88's over the EH90's,,I will add the Psvane KT88 C version to wish list, The C version is the newer KT88 from Psvane called the Classic 88, the older version is called the hifi 88.
I will post notes over the comming year as these tests will be ongoing during the year 2020.
What say you about these new kids on the block?
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- 59 posts total
WEll true, cool looking Shu does not equate to superior sounding, I now havea few mods completed, My biwire Thor Speakers now employ TWO separate wires to each speaker post, One Sterling Silver/insu PLUS ONE copper strand/insul = sixteen speaker wires total Not sure how much equated in fq resolution gain, as when i was making this mod, I sadly noted that one the left channel, wires were ~~Crisscrossed~~ that is to say, on the tweet of the MTM Thors, the black went to bottom post of the bi and the red went to top post of bi = completely mixed up....so who can say the sound is superior due to correction of criss crossed wiring, or the added Sterling Silver line to each post??? as now the system is really hi fidelity. There was high distortion going on, which i attributed to the poor build of the Lite LS9,,which was a grave error on my judgement. The Lite LS9 although not a true Jadis 200 pre, does perform very well, almosta keeper, also I swaped out the NOS tall E191CC's/amperex/beckman/ for the stock 12AT7's EH which came with the pre. Far superior the stock EH's to the 7062 NOS tubes https://www.radiomuseum.org/tubes/tube_7062.html I should add, the EH AT's have more ~~body~~but lack the super quiet lower gain/forwardness of the E181's. But after further consideration, the details of the muisc can be noted much more clearly in the stock EH AT's. So although a replacement for AT's, the E181 lacks a finesse which the shorter but wider body 12AT7. My shoot out with AX's vs 12BZ7's , went down like this In one very quick shot, the AX's blew away the 12BZ7's as a sub for the AX in the Defy. = Not a sub for the superior AX, lets put that notion to rest. Now with wires crossed correctly and each wire biwired (+ 16 wires total silver/copper) and new Discrete Opamps employed in cayin + 12AT7's back in their saddles + the far superior E80CC vs the crappy AU's performance, in the front 2 slots on the Defy 7 WE are now ready fora shoot out twix the AX's. China /Shugaung T series vs USA/RCA tall black plates vs Holland/Philips miniwatt = amperex BB's (same tube) vs Germany/ Siemens (No UK/Mullards , as i hate british warm sounding engineering/amps/speakers and I assume their tubes are of this muddy sound as well). IMHO all will shoot equally = miniscle dif = a NOS AX is a NOS AX. But then I could be wrong. btw, i want to also try the Baldwin/Wertlizer AX's, as these were specially chosen for high quality perforamnce for Organs. However the Baldwin/Wertlizer seems to be made by RCA. I have a bunch of AX's arriving later this week to complete this testing. |
-markus I prefer a neutral sound with an emphasis on speed and soundstage. The shuguang we6sn7 in the LTA sounds clear and clean, with defined bass. In my experience they sound similar to the NOS but bigger sounding. I could easily live with either but they have shown to be perfectly capable. On the flip-side, I have not had success with psvane 9 pin input tubes like I have with NOS. |
- 59 posts total