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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
snopro
392 posts
 
shkong78,
 
I have a pair of Melz 1578 tubes. Can you please tell me how to check for date of manufacturing?
shkong78's avatar
shkong78 OP
1,485 posts
 
If you look for etched sign in the middle of tube, then you can find the year like 80 or so.
shkong78's avatar
shkong78 OP
1,485 posts
 

After listening to 6n8s tube made in 1978 for several hours, I am back to Kenrad vt 231.

KR also has nice bass with sweet and refined atmostphere.


Definitely KR vt231 is at least half notch or even one notch above 6n8s .



Now I have 16 different variants of 6sn7 tubess.


After changing tube, sound also change as if new pre is being used.


It is like tasting various wines or coffees.


But if you do lot of tube rolling, be sure to use socket saver.


https://www.ebay.com/itm/CED-P-ST8-1000-VACUUM-TUBE-8-PIN-OCTAL-SOCKET-SAVER-for-6L6-6V6-6SN7-EL34/150688246271?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649


wolf_garcia
6,704 posts
 
NOS GEs

are 

my

current

faves

after 

trying various others in my Freya and Had SEP amp. I also tried double spacing this post to see if it works for me and yeah, it's kinda lame.
shkong78's avatar
shkong78 OP
1,485 posts
 
I also have two pair of GE (Rca) gray bottle which sound warm and lush.

But I prefer to take turns between the tubes.

It is more economical way to get new flavor than changing pre amp or cable rolling.
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