[exchez]

I've got around 20 hours on the stock tube for the Vali 2++. I started to notice the bass having slightly more punch. Kinda like a slight rumble. The soundstage started to feel more open. That part could be placebo though. So far, I would describe the stock tube to be more on the neutral side with having a nice punch/rumble to the bass without making anything sound muddy. But like I said, I still only have around 20 hours so far bit that's what I'm noticing. It's a solid tube considering what you pay for the amp.

I placed an order for the Tung-Sol 6SN7GTB and a 6SN7 to 5670 adapter from Garage1217 as well as a 9 pin socket adapter to try with the Vali 2++. Looking forward to trying this tube out!

You also probably need a socket saver/riser in the Vali because the 6SN7 adapter won't make it thru the existing hole. I have a KEN-RAD 6SN7 GTA in my Vali 2+ and it sounds even better than a WE 396A (but only by a little). I wish the hole was slightly larger to accommodate more adapters. Cheers

 

[britt2001b]

Opinions on optimum burn-in time vary around here. But on average, the optimum time will always be 20 hours more than the hours you've logged on said tube.

Enjoy the listening time. Either the tube or your brain will adapt. Or both.

Thank you. It's amazing how the brain will adapt. I sometimes wish it wouldn't as to keep a point of reference when comparing and rating audio performance.

I've got around 20 hours on the stock tube for the Vali 2++. I started to notice the bass having slightly more punch. Kinda like a slight rumble. The soundstage started to feel more open. That part could be placebo though. So far, I would describe the stock tube to be more on the neutral side with having a nice punch/rumble to the bass without making anything sound muddy. But like I said, I still only have around 20 hours so far bit that's what I'm noticing. It's a solid tube considering what you pay for the amp.

I placed an order for the Tung-Sol 6SN7GTB and a 6SN7 to 5670 adapter from Garage1217 as well as a 9 pin socket adapter to try with the Vali 2++. Looking forward to trying this tube out!

Thank you. I have no complaints with the stock tube. It's a keeper! I let it play some vocal Jazz in a random loop from Hi-Res Qobuz for about two hours this morning while I tended to other duties. When I returned, I seemed to detect a bit more airiness.

 

[DropTekRoon]

You also probably need a socket saver/riser in the Vali because the 6SN7 adapter won't make it thru the existing hole. I have a KEN-RAD 6SN7 GTA in my Vali 2+ and it sounds even better than a WE 396A (but only by a little). I wish the hole was slightly larger to accommodate more adapters. Cheers

Yeah, that's what the 9 pin socket adapter does. It raises the tube. I purchased that as well as a 6SN7 to 5670 adapter.

 

[bcowen]

The Reflektor 6N3P from the 60s is one of my fav 5670s. Prefer it to the GE, Sylvania, Bendix 5670 versions.

Right up there with the RCA Command 5670 and WE 2C51 - IMO. Which is subject to change without notice.

Have you tried the triple-mica Foton? Hard to find these days, but one of my personal favorites in Russkie 6N3P's.

 

[bcowen]

^^ only because of the experience / generosity of Head-Fi tube magi …. e.g. bcowen, Paladin79, Ripper2860, Galapac ….

For the Vali 2 (no +++s), without adapter: Amperex PQ 6922, Amperex PQ 7308, Sylvania 6922 (green print). With a 5670 —> 6922 adapter (from Tube Depot): Raytheon CK 5670, GE 5-star 5670, RCA command 5670.

I'll add the Brimar 6BQ7A for the Vali 2 (no +++s). No adapter needed. It's one of my favorites, and would probably still be in there if it wasn't for the Brimar CV4033 you made me buy.

 

[bcowen]

Yeah, that's what the 9 pin socket adapter does. It raises the tube. I purchased that as well as a 6SN7 to 5670 adapter.

@Deyan can make you a one-piece adapter if you want to go all OCD.

 

[Mr Trev]

Have you tried the triple-mica Foton? Hard to find these days, but one of my personal favorites in Russkie 6N3P's.

Gee… I wonder why?

 

[LobalWarming]

Have you tried the triple-mica Foton? Hard to find these days, but one of my personal favorites in Russkie 6N3P's.

All my efforts to find good ones lead to a suspicious laundromat/vintage cardboard store in NC. Probably just a coincidence

 

[britt2001b]

The product description says it's a 6N3P which is a Soviet era tube probably made in the 1980s. It has very similar specs to the 5670, though you'll have to tell us how you think it compares sonically.

The GE JAN 5670W arrived today and sounds nice out of the box. I'll allow more burn in time before making a more serious comparison with the Vali 2++ stock tube. Although, I sure am enjoying the 5670's wonderful glow as it burns in!

 

[bcowen]

All my efforts to find good ones lead to a suspicious laundromat/vintage cardboard store in NC. Probably just a coincidence

Laundromat? No, no....from the outside those just look like washing machines. They're actually bulk tube polishers that can also be configured as cardboard resurfacers.

 

[LobalWarming]

Laundromat? No, no....from the outside those just look like washing machines. They're actually bulk tube polishers that can also be configured as cardboard resurfacers.

That's another thing missing from the 21st century besides drugstore tube testers - bulk tube polishers.

 

[bcowen]

That's another thing missing from the 21st century besides drugstore tube testers - bulk tube polishers.

BangyBang has one. Does a great job of removing all the Chinese markings before he applies the new GEC, Brimar, Amperex, and Mullard silkscreening.

 

[jonathan c]

That's another thing missing from the 21st century besides drugstore tube testers - bulk tube polishers.

Tube testers, pfft! What about using S&H green stamps to discount bulk tube buys?

 

[jonathan c]

BangyBang has one. Does a great job of removing all the Chinese markings before he applies the new GEC, Brimar, Amperex, and Mullard silkscreening.

… less work if BB starts with GE tubes …

 

[Mr Trev]

The GE JAN 5670W arrived today and sounds nice out of the box. I'll allow more burn in time before making a more serious comparison with the Vali 2++ stock tube. Although, I sure am enjoying the 5670's wonderful glow as it burns in!

That's the one thing I can say about the GE 5670. They make a spectacular night light