6SN7GTB - Tung Sol

I had a Schiit Lyr 3 with the Multibit DAC with this type of Tung Sol tube and it sounded great. Unfortunately, that Lry 3 stopped working and I had to send it back to Schiit to get a replacement Lyr 3 (again with Mutlibit DAC). This new Lyr 3 came with a JJ Electronics tube instead of the Tung Sol. WIth the JJ Electronics tube the new Lyr 3 had super clear and well defined highs and mids, but was lacking any oomph on the mid low and very low end compared to my original Lyr 3 with the Tung Sol tube. I ordered a new Tung Sol tube from Amazon (seller was TubeDepot) and am very happy to report the sound is way better in my opinion with this new Tung Sol tube installed . It really enhances the bass and overall sound. The Lyr 3 is much more fun/enjoyable to listen to with the Tung Sol tube in vs. the JJ Electronics tube. Highly recommended...

This a nice tube after burnin which is about 75 to 80 hours and then it’s dead quiet. Sounds wonderful!!! I use this tube in my darkVoice headphone amp!!

Sounds good. I like it. Much more neutral on sound. I prefer the sovtek actually. But still a great tube to have and does make some songs sound just the way I'd like, which is well worth it. Great tube for anyone

So far so good still doing burn in about 48 hours others then the surprise of how they ship it in just bubble wrap and not double boxed I’m surprised they don’t have many returns for them getting broken but what do I know about shipping

Like several others, I bought this as an upgrade to the stock Chinese 6H8C tube for the Darkvoice 336. I researched and read about newer tubes, unlike NOS tubes, requiring a good amount of burn in to reduce noise in your headphones. When I first replaced the stock tube with the Tung Sol 6SN7, there was a VERY noticeable 60Hz hum in the left channel of my headphones (Sennheiser 650s). So I left the Tung Sol running without the power tube in for roughly 72 hours to "burn in" and get rid of the annoying hum... 72 hours later, the hum was only reduced slightly. Maybe my Tung Sol tube is defective, but this hum is noticeable enough for me to hear during quiet parts of songs. Not acceptable imo and I can't recommend this product because of that. I definitely plan on returning this and asking for a refund if the hum doesn't go away within the next week. Also worth noting, the stock Chinese tube I was upgrading by purchasing this, had zero hum from the start, so my amplifier is not the hum source. BE WARNED IF YOU'RE PLANNING ON "UPGRADING" YOUR AMP. Update: One week later, hum has not gone away. Another 50+ hours of burn in (over 120 hours total) and it's still humming. Returning this tube. Update 2: Returned it and got a Shu Guang CV181-Z. <24 hour burn in and zero hum. Costs a bit more than this Tung Sol but well worth it imo.

Bought it as an upgrade over the existing tube that came with Schiit lyr 3, which is the 6N8S. It works well and I like it so far. The seller sent it in great packaging and was very protected. It survived the shipping to Bahrain. Extremely happy with VIVA tubes as a seller. Thanks!!

I have a Dark voice 336Se. This tube had an annoying him in left channel that went away completely after about 40 hrs. of burn in. I removed power tube and just left the Amp on. This valve is very clean on the upper frequencies but not harsh on the ear. I would recommend if you are looking for a new tube.

initially i was disappointed with sonic characteristics from this tube, BUT after 35-40(ish) hours of burn in time it’s settled into a MUCH more precise and approachable sound.