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
First impression of the 1578 - wow! Looking forward to see how they sound after a little burn in. 
OP,  your amp uses one 6SL7 and two 6SN7s, yes? I believe the 6SN7 would be the phase inverters. Correct me if I'm wrong.
I assume you've tried rolling the 6SL7. What tube works for you in this position?

I used to use Mullard ECC35 for more than one year.

But about 3 weeks ago I switched to RCA 5691 red bass which give more details and deep bass than ECC35.
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.