My is Modi Multibit (ver.2 I think, current version).

Did update of DAC to Schiit Modi 3 Multibit. Got myself schitty stack) DAC have different sound signature? that leads me to rethink my tubes preferences. At least it seems that with Siemens E88CC sound becomes too warm... Got any thoughts on?

Also exellent tube adapter came to me from fellow Deyan (thank you again) that can convert 6SN7 tubes to 6922 type. Need some always limited time to listen my 6SN7 tubes collection to write review on them. Respond if it will be useful and interesting. This tubes so far I have:

Got that all recommended Matshuhita 7DJ8 tube. It sounds pretty good. Compared to my favorite Siemens E88CC it have more forward mids, slightly less bass, highs about the same. For my taste I will stay with Siemens E88CC - it has more warm and bassy sounding that I like.

You did the right choise. 6922EH gold is good tube to start with. It is the first tube which sound I did like and it's sound differs from 6BZ7. Hope you will be happy with it too. But once you started experiments with tubes it can't be stopped. So cancel the order and stay with stock tube :wink...

I wouldn't say that the tubes sounds completely different and you will be able to undoubtfully say that is 6922EH and that is 6BZ7 when to A to B comparing them. Sometimes it can be very similar sound with micro nuances difference. What I can clearly confirm and agree with Mr Trev that 6CG7...

In fact number 32 also exactly suggests that this tube was produced on 32 plant:slight_smile:

A very good question indeed. I wil try to fully cover it with my answer.

Tesla tubes produced on 2 plants: 32 and 37, and there is information that 37 plant was held to more tight tolerances and strict QC. Blue tipped Tesla can be either from 32 or 37 as well. I had 4 tubes produced on 32 plant and exchanged 2 of them to 37 plant tubes. As they will come to me I will...

About 6N23P tubes. I have 3 types of them: original 6N23P, and two improved 6N23P-EV of Reflektor and Foton plants, 1974 and 1982 years of production respectively. All tubes shares a little coked highs, meaty bass, slightly aggressive sound. In fact I do prefer Foton 6N23P-EV of that three...

So, two new additions to the brotherhood. Well... it's Tesla E88CC gold and Siemens E88CC. In that review I will compare new tubes to Tesla E88CC blue tip as reference, it's much more easier than search micronuances in that number of tubes I listened. Tesla E88CC gold had almost similar sound...

On photo I wrote actual marking on lamp, that you will see holding that lamp in your hand. In description I did write it latin co-symbol name.

From what I know development of that type of tubes was 6DJ8 (ECC88) to 6922 (E88CC) to 7308. What makes 7308 tubes the best from it's branch. But not all E88CC will sound better compared to ECC88 tubes. E88CC have better tolerances and QC. I don't had experienced Tesla ECC88. My Tesla E88CC...

Hello. I bought them on my domestic site Avito. Though it will be difficult for you to convince seller to send order overseas. Try Ebay at least, but the price will not be so sweat as it was for me... It is some benefit to live in country that still produces tubes.

I have Vali2+ for about a month now and didn't made much tube rolling so far. That what I experienced for that moment: 1) Stock 6BZ7 I didn't used much, It's okay tube, pretty linear and good sounding. You can pretty happy with it until you start rolling tubes. And it is free. 2) 6N23P-EV is...

Hello, guys and gals! Want to share my expressions on tube rolling for my new Schiit Vali2+. It's my first hybrid headphone amplifier and I'm pretty new to external solotions, used much Creative and Asus internal audio cards since late 90s. It is my current setup: powerbank feeded Topping D50S...