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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
lowrider57's avatar
lowrider57
5,397 posts
 
History of National Union...

https://www.radiomuseum.org/dsp_hersteller_detail.cfm?Company_id=2955

shkong78's avatar
shkong78 OP
1,463 posts
 
@lowrider57 



Thanks a lot for informative link.
mid40sguy's avatar
mid40sguy
162 posts
 
Thank you for the helpful detailed notes Thomas.
I ordered on matched pair 1980 Melz 1578 from Olga. When they arrive will post my thoughts.
I own a pair of TS BPRP a pair of Sylvania metal base and Psvane Treasure CV181-TII. 
I find the coveted Tong Sol best it simply is more musical. Sylvania and Psvane a close second to each other. Sadly one Tong Sol recently died.

By the way I also live in the Seattle area. 
shkong78's avatar
shkong78 OP
1,463 posts
 
@mid40sguy 


Congratulation on getting 1578 tube.

Yesterday i had been back and forth between 1578 and TS bgrp.

Although, TS bgrp giive very sharp details, I prefer 1578 to it due to much better dynamics and wider soundstage.

But it will depend on system and personal taste.

After you get 1578, please leave your impression of it.

Thomas
shkong78's avatar
shkong78 OP
1,463 posts
 
Yesterday I had been back an forth between Melz 1578 made in 80 and Melz 6n8s made in 53.

While 1578 give slightly more dynamics and wider soundstage, 6n8s made in 53 give slightly more air and sparkle thus more suitable for lady vocal.


Pair of 1578 cost me 250$ while pair of 6n8s metal base made in 53 cost me 69$.

Thus 6n8s made in 53 give an excellent value.
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