Shootout of Nos 6sn7 tubes

How would you compare Melz 1578 and Sylvania 6SN7W metal base?
I was going to purchase a pair of 6SN7 tubes for my Supratek Cortese preamp and was considering the Sylvania as the one till Melz discussion here.

I do not have  Sylvania 6SN7W metal base.

But who heard the tube mentioned it is little bit overhyped.

I have  Sylvania 6SN7W brown base which sounds lively with good details but not in same class as 1578.

If is better to choose 6sn7 tube based upon what you want to improve.


The advantage of 1578 is nice timber,  bass, decay and widest and deepest soundstage.

If you want to go for utmost  transparency and details, then you had better get Sylvania vt231.

If you want lush and warm sound, then go for RCA vt231 grey bottle.

Just my 2 cent

Thomas

shkong78..... when you get a chance, i strongly recommend the Telefunken 6sn7. With all the characteristics you described and your listening styles the Telefunken might be your cup of tea!

here is my lists of 6sn7 in particular order:

telefunken 6h8c 6sn7
GEC 1988 Metal base 6sn7
Amperex miniwatts ecc32
tungsol Round plates
Tungsol 6f8g Round plates w/adaptor
Sylvania metal base
Kenrad black Round plate
Metz Russian

Hands down the telefunken 6h8c my go-to for 6sn7

@zipost


Thanks for your recommendation.

But there is no best thing for everybody.

It will depend on system and personal taste.

Also some audio gadgets are overpriced with hype or due to law of diminishing return.

I found Telefunken 6sn7 is listed at 1,600$ from Italy


I have more than enough 6sn7(17 different kinds total 70 tubes)

Thus I am going to stop purchase of more 6sn7 tubes.

Since my speakers with plasma tweeter and Dave and HMS is on the neutral or somewhat analytical side ( not warm or bloated) , my preference without considering cost is


1. 1578 Melz
2. TS bgrp
3. Syl vt231
4. Kenrad vt231 bg
5. Raytheon vt231
6. RCA vt231 gray bottle
7 6n8s made in 1978
8. Syl 1952 "Bad boy" three hole.
9 Syl 6sn7w brown base
10 Syl gtb tall bottle made in 1955
11 RCA gray bottle
12 Shuguang Treasure CV181-Z ( New production)
14.. Tungsol gtb tall bottle made in 1950’s
15. Amperex GTB
16. New production 6n8s ( stock tube of Schitt Freya)
17. New production Tungsol GTB

Good to see the posts above. In particular, the notes about the Melz 1578. Those were impossible to find for a while but now it looks like a batch has shown up from somewhere and there are multiple dealers selling them.

Please - those of you who are trying them out - please continue to share your impressions and also your trusted sellers with best price and delivery.

Best regards,

Markus