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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
 
I received Melz 1578 tube 2 hours ago.

It blew my mind with nice decay and body, deep bass, wide and deep soundstage.

I had not been blown by TS bgrp just impressed with its transparency.

To me this one is one tier better than TS bgrp.

I am listening to "The Wall"  which sounds full and powerful without subwoofers.


https://www.ebay.com/itm/133366164135


I ordered one more tube as spare.
lowrider57's avatar
lowrider57
5,417 posts
 
So you ordered an extra pair at $250? I guess these tubes are worth it.

I'm waiting to hear your review after full burnin. It's possible the tubes may open up even more.

shkong78's avatar
shkong78 OP
1,485 posts
 
They are gently used.

Thus no burn is needed.

It has nice body and full decay and the widest soundstage that I have had in my room.

It is worth every penny.

There are some USSR dealers in Ebay who sells tube with 1578 logo with 60 day’s return.

But it will take 6 weeks to get them.

I may need to order some more from Russia for Freya which use quad 6sn7.

rodman99999
6,171 posts
 
Damn it, shkong78-     Why didn’t you do this shootout, and test those Russkie tubes, a month ago?      I’d have been looking for a pair of those, instead of buying the T-S’s.       Now, I have to start shopping again.     Thanks, pal!      ps: What’s that seller’s eBay moniker?
shkong78's avatar
shkong78 OP
1,485 posts
 
If I had 1578 in the shootout 3 weeks ago, then i would not have bought more Kenrad vt231( Now I have three pairs they are pretty good for the money).

But I could not get 1578 at the time.


I heard that there are difference between 1578 made in 1970’s and 1980’s.

The one that I got today was made in 1980’s.

Next week I will get tubes made in 1973.

I will do comparison between them.



It seems that there are good Russian dealers in Ebay.

I will also do more study about it since I need more 1578 for LM508 and Freya+.

Thomas



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