The system and extra pipes are on loan from type user. Begin to see the summary of Schiit Saga in synchronous thread.<

When I talked about when you look at the writeup on Saga, the stock pipe is just a Russian made clone of 6NS7 which passes label of 68HC. The additional pipe supplied is from Raytheon and ended up being built in United States Of America. They can be seen by you side-by-side here:

The 68HC is from the left in addition to Raytheon 6SN7 is from the right.

The pins on some oxidation was had by the 68HC on them. In comparison the pins regarding the Raytheon 6SN7 were pretty clean.

I didn’t duplicate the dimensions of 68HC. I simply went some of the tests on 6SN7. Generally there be some variation in performance regarding the device general but ideally that is lost into the sound, pun intended.

Let us go into dimensions and discover if our western, genuine 6SN7 provides on its vow.

Measurements As with the review, we began my assessment by calculating performance stability that is warm-up

The most notable two lines are from Raytheon 6SN together with bottom two with 68HC. We come across that the Raytheon pipe really has greater distortion! We will quantify that briefly.

From the side that is positive appears to be more stable with less deviation within the graph. Not too this matters much given the variations that are tiny macro degree.

Through the dimension we noticed my light that is LED was. It absolutely was about a base over the Schiit Saga. I change it down during dimensions but never have noticed it making a positive change prior to. right Here it did, causing one channel to have a little even worse nevertheless the other a bit better! Once again, they are very small variants of no effect but shows exactly just how good our instrumentation is, while the known proven fact that some disturbance is engaging in the system, maybe coupling to your pipe itself.

Before getting in to the dashboard, here’s how the stock 68HC did:

SINAD (signal over noise and distortion) is all about 97.5 dB. Here’s how the Raytheon pipe did:

We destroyed very nearly 4 dB in a single channel, and 2 dB within the other. This will be visible within the 2nd harmonic which peaks greater utilizing the Raytheon 6SN7.

Conclusions they do say don’t judge a written guide by its address which is real right right here. The so named “clone” tube did a lot better than the manufacturer Raytheon. Of course difficult to tell simply how much this correlates with a much bigger test of pipes. For the time being however, the dimensions reveal a action backward so my suggestion into the owner will be keep consitently the tube that is russian offer the Raytheon.

Ron Texas

Significant Contributor

In all honesty. I assume this demonstrates tube rolling might have a result https://datingmentor.org/escort/fremont/, however it helps you to have an AP readily available to assess the distinction.

Meanwhile, each and every time we see “tube rolling” we think about a vehicle tube that is inner down a hill to a river.

Dependent on Fun and Learning

Significant Contributor

Lowest distortion 6SN7 type i have tested was a CV1988.

Nevertheless, there is far better options for cathode supporters- the numbers of merit are mu and transconductance, and 6SN7 is kind of center regarding the road there. Its merit that is main is in a position to move averagely big voltages, which will be certainly not appropriate in this application. High gm triodes like 6DJ8/6922 will outperform a 6SN7 in this solution, but they are unfortunately not pin appropriate. We suspect the 6SN7 had been selected for any other than technical reasons.

mshenay

Active Member

We’ll chime for the reason that I always comprehended noise that is”added from a pipe become one thing “ideal” for a few people. While the noise or distortion regarding the tube is 2nd purchase harmonics that are “pleasant sounding”

Therefore if it’s equal included sound in each channel some may enjoy that incorporate distortion over a “cleaner” sounding tube

I am not just one that enjoys. added sound beyond whats inherent to high end pipes and so I would definitely recommend the stock. We additionally occur to like “russian” pipes my self anyways. My point being, that i really believe in Tube Land included noise/distortion is not constantly a thing that is bad. The included but less diverse distortion for the Raytheon are just exactly what some individuals want within their system,

I would personally also advise that when your buying [and evaluating] pipes your buying 100%/100% models, when I’ve discovered subjectively tubes run alone in a double triode setup [so an individual 6SN7] which have a variation from the production values for every single triode often provide a less exact stereo image and are usuallyn’t as resolving often times. That 2dB SINAD reading distinction is most likely reflective of “somewhat different” production values for every single triode. Or it further reflects that output from both triodes inside the pipe is not a great match. The stock pipes production is much more consistent with the things I’d desire from the pipe within my own system, it’s perhaps not positively 100% but near sufficient since it’s such as for instance a 99.7% match. VS one other which can be around 98.4 and therefore little difference correlates up to a 2DB SINAD huge difference that I’m certain because of it self is not audible but had been planning to amplify that single which will likely further enhance the “difference” fundamentally resulting little small unwelcome modifications

An we’ll further add that bother about most of these distinctions is generally just legitimate in hybrid systems utilizing just one double Channel Triode pipe, feasible every one of mentioned is complete and utter bull schiit, since again i am no expect and all sorts of of the is purely conjecture predicated on my subjective experience.