Man all these different output tubes on different versions of the dac is very confusing. I have the L4 ver 3 with 6h6p tube. Lucaz makes a a lot of sing and dance about the virtues of this tube throughout his site and that it out performs all other tubes. He even states that it is being used in his website.
Yet I am reading that 6h6p is not in the current L4. Why?
In my manual, Lucaz has stated that the 6h6p cannot be rolled? Is that a lot of BS? |
You may want to do a little research. It seems the 6H6p is the same/equivalent tube as a 6N6p. From thetubestore dot com; The 6N6p tube is a Russian dual triode tube. This tube is often seen as 6N6p, 6N6PI, 6N6pi, 6H6p, 6N6p-i, 6N6n-i ,or 6H6n-i. The Chinese name for the 6H6p tube is 6N6 tube. The 6N6p is a fantastic tube for preamps and driver stages, and is even used as output tubes in the Little Dot MkIII headphone amp. It has been used by the tube DIY underground for many years and is now becoming better known in the mainstream. From the Lampizator website; First some facts: 6H6(Pi) is written in CYRYLLIC alphabet. That's why sometimes you can find the same tube written in latin which spells 6N6P.
To my knowledge this tube has been produced only in Soviet Union (the oldest sample I found was from 1974, the newest from 89.)
It is a genuine Soviet design, unlike most of their tubes which they copied from the West all the time. The closest equivalent is the Ecc182, E182CC although the pinout is different, .
We do not want to use the impulse variant 6N6P-i later named 6N30P. We want the good old 6N6P only. And a link; http://www.lampizator.eu/UPGRADE/upgrade%20noval%20tubes%20to%206H6P.html |
The Gen 4 has a different architceture and different tubes mate better with it than Gen 3 architecture.
To find out of tubes can be rolled is public info. Do a google search!
6h6p is a smmoth more laid back sound and some people like a more forward hard driving sound. That is the yin/yang of tube rolling, as well as better rendition of different parts of the frequency range. |
"Yet I am reading that 6h6p is not in the current L4. Why?"
Lukasz's says(states on his website) of the 301 parts in GEN 4 only one is shared with the the GEN 3 (the power button). |
Gen 4 uses Current output R2R chips and :
A DISCLAIMER_ THE 6N6P IS NOT SUITABLE FOR LAMPIZATORS WORKING DIRECTLY WITH CURRENT OUTPUT DAC CHIPS LIKE TDA1541A.
For the I-out DAC types allways use 6N2P! |
