[nofacemonster]

I just received these. Tested and labelled but i don't know how to choose the closest matching pair. Which numbers should i match.

 

[mordy]

I assume that you need one pair. Just pick two that the four numbers are close.
Even if you picked numbers that are very different, I doubt that you will be able to hear a difference since they are all close.

 

[Onik]

EF 91 VS EF 95 which one sounds the best ?

 

[gibosi]

Not all EF 91 sound the same. And not all EF 95 sound the same. Further, everyone has different ears and different gear. So what one person considers the "best" is just OK for another. The only way to know what is "best" for you is to read as much as you can about these tubes, select one or two, and start rolling....

 

[Whelkie D]

EF 91 VS EF 95 which one sounds the best ?

As gibosi said, they don't all sound the same. I have some EF95s that suit some moods/styles of music and others that suit different ones. Same goes for EF91s, although I must admit that I really like the warm sound of some old Osram z77 tubes that I got cheap on ebay.

 

[Onik]

Does the size makes any difference as the EF95 is smaller than EF91, I just thought bigger is better LOL

 

[mordy]

Does the size makes any difference as the EF95 is smaller than EF91, I just thought bigger is better LOL

Within the same type of tube size does not matter. However, construction, materials and age can make a difference, although there are no hard and fast rules.
You will find that tubes with more internal bracing such as triple mica discs and more support rods may sound better since these factors can effect the microphonics of the tube.
As a rule ( but always with exceptions) you may assume that older versions of tubes may sound better because of greater care in selecting materials and quality control.
About size, certain tube equivalents can be found in different incarnations over the years. My personal impression is that an older shoulder type (big glass bulb) tube many times sounds better than a similar, newer and smaller tube with straight glass. However, I don’t know if your amp can use these types of tubes.

 

[nutsfortubes]

Dumb question. Can 6N6 tube be replaced with 6N6P?

 

[OctavianH]

Yes, I used 6N6P and 6N6P-IR on the Littledot MK2. You can see here (on the right) the 6N6P-IR:

On the left is my favorite driver, Voshkod 6ZH1P-EV. The difference between 6N6P and 6N6P-IR was that the last one was more neutral than the other. The same specs.

 

[nutsfortubes]

Thanks

 

[Onik]

is rolling power tubes really necessary to improve sound quality for LD MK II? if yes which power tube can shine amp?

 

[Tony51]

You can get by using stock but if you roll it will sound a bit better. Power tubes affect the overall sound but not more than the driver tubes will.

 

[nutsfortubes]

Which driver tubes would that be?

 

[Tony51]

Which driver tubes would that be?

There's a whole mess but I settled on the jan5654w, cheap and very good sounding.

 

[Onik]

You can get by using stock but if you roll it will sound a bit better. Power tubes affect the overall sound but not more than the driver tubes will.

Which Power Tube would you recommend?