Shootout of Nos 6sn7 tubes

Is the Melz 6N8S metal base the same as the 1578 stamped tube?
I've read to look for the 1578 white lettering on the glass.

@lowrider57

It seems they are same but I am not so sure.

I am curious how it sound in my system compared vt231s.

I ordered pair 3 weeks ago and have my finger crossed when I will get it..

It was processed in Kiev 2 weeks ago.

The Reference 6SN7 Thread

6SN7 VT

Those two links are useful for selection of 6sn7 tubes.

As I go through the tubes myself, I concur with most of the opinion on those.

The only new thing I found out is that TS brgp is over hyped.

"The only new thing I found out is that TS brgp is over hyped."           Perhaps, to YOU and your tastes/biases/budget.               There’s a reason, that the Tung-Sol round plate is so popular and has been, for so many decades (even at one of the highest prices, for a 6SN7) and- that reason’s NOT, "hype".

I think the real question should be if the money you save by using a second tier old stock tube could pay higher dividends by making improvements elsewhere in the system or in the room.

@audition__audio


All vt231 (Syl, Kr, Rca, RT and TS) are in the same tier, not that TS is one notch above .

Bass Kr, Rca, Rt, TS , Syl in the order

Transparency TS, Syl, Kr, RT, RCA

Details Syl, TS, Kr, RT, RCA

Tonal balance Kr, RCA, TS, RT, Syl

Soundstage width RCA, Syl, TS, Kr, RT

Soundstage Depth TS, Kr, Syl, RT, RCA


Thus overall they are close in SQ.

Unless you want see-through transparency, you do not need to pay 500$ for TS bgrp.

Kr is attractive due to best bass and sweet tonality.

Syl is attractive due to excellent details and transparency

RCA give warm and lush sound which make one comfortable with nice bass.

RT is not far behind other ones.

TS’s bass is close to Syl with tight but not full impact compared with KR.