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Shootout of Nos 6sn7 tubes

I will have shootout between TS BGRP, RCA vt231, KR vt231, Syl vt231, Raytheon vt 231 and "Bad boy" next weekend.

If I get MELZ 6N8S 6SN7 Metal Base next week, then I will also include it in shootout


RCA5691, Psavne Acme 300B, Psavne Acme 805 are also being used in Line Magnetic 508 amplifier.

Speaker will be Lansche 4.1 with plasma tweeter.

Digital source will be Dave and HMS fed by ripped CD stored in ssd drive of Cocktail audio x30.


I will play

Eva Cassidy's 'Autumn Leaves"

"Trinity Sessionn " by Cowboy Junkies

For classical orchestra, "Trittico" directed by Fennel.

"Still harry after all these years" will be for fusion jazz.

Any more suggestion gentlemen and ladies.

Thomas
128x128shkong78
shkong78's avatar
shkong78 OP
1,485 posts
 
@bigkidz 


Thanks for your kind word and input.

 I fully  understand that amp maker can not use Nos tubes because of limited quantity available and variation among them.

But it is still fun to do tube rolling.

Now I have around 50 pairs of 6sn7 tubes.

30 pairs will be in just storage.

I will take turns at 20 pairs to taste different flavor.

As of now, my favorite tube is 1578 Melz made in 1980 (250$ net cost to me through Ebay dealer)

Thomas
bigkidz
3,400 posts
 
@shking78 thanks  interesting read  I hae never tried that particular tube.  I have always found the Tung-Sol black glass round plates to be the most musical and magical.  I will have to try the 1578 Melz myself just for the fun.  I also found the CBS short bottles to be a bargain basement for the price.I used to love the tube rolling game and enjoyed having friends come over to listen or bring a tube to their house for a listen.  I also recently used the Tung-Sol 6SL7 in a buddies Dude preamp with excellent results - slightly more gain but retains the TS magic and mid-range sweetness.

Happy Listening.
big_greg
6,669 posts
 
I received my replacement set of 1578 tubes today and they sound fantastic. No crackling like I had with the bad one I received the first time. My air conditioning has been on so I don't have a good sense yet of how low the noise floor is with them, but they are a little bit more noisy than other tubes I've used. So far the sound is wonderful with music playing.
mid40sguy's avatar
mid40sguy
163 posts
 
My pair of 1980 Melz 1578 from Olga arrived yesterday. After playing 8-10 hours background music in our living room system I sat down to listen.
WOW!
I'm ordering another set of Metz 1578 now. I also ordered a pair of 1954 Metz 6N8S. 
What I noticed…. depth, focus and groove. I'm not a huge Kraftwork fan but listening to Tour De France (2009) remaster (M) Tidal I was unable to surf the internet the music kept drawing me in!
Thanks for the heads up Thomas
shkong78's avatar
shkong78 OP
1,485 posts
 
@mid40sguy 

It is very nice for you to enjoy 1578 tube made in 80's, 

I was skeptical of the tube when some person raved about it.

But after trying it in my amp, I became a believer.

@big_greg


It is good for you to get new replacement tube.

I hope that they will work fine.
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