The system and tubes that are extra on loan from sort user. Start to see the breakdown of Schiit Saga in synchronous thread.<
When I talked about into the writeup on Saga, the stock pipe is really a Russian made clone of 6NS7 which goes by label of 68HC. The additional pipe supplied is from Raytheon and had been produced in United States Of America. They can be seen by you side-by-side here:
The 68HC is in the left plus the Raytheon 6SN7 is in the right.
The pins on the 68HC had some oxidation on them. In comparison the pins in the Raytheon 6SN7 were pretty clean.
I didn’t duplicate the measurements of 68HC. I simply went a number of the tests on 6SN7. Generally there be some variation in performance associated with the product general but ideally this is certainly lost into the sound, pun intended.
Let’s enter into dimensions and find out if our western, genuine 6SN7 provides on its vow.
Measurements much like the review, we began my evaluating by calculating performance stability that is warm-up
The very best two lines come from Raytheon 6SN in addition to bottom two with 68HC. We come across that the Raytheon pipe really has greater distortion! We will quantify that briefly.
On the side that is positive is apparently more stable with less deviation in the graph. Maybe not that this matters much given the variations that are tiny macro degree.
Throughout the dimension we knew my light that is LED was. It had been 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 getting a bit even even worse nevertheless the other a bit better! Once again, they are very small variations of no effect but shows exactly just just how good our instrumentation is, therefore the proven fact that some disturbance is stepping into the machine, maybe coupling to your pipe it self.
Before getting in to the dashboard, this is how the stock 68HC did:
SINAD (signal over distortion and sound) is all about 97.5 dB. This is how the Raytheon pipe did:
We lost nearly 4 dB within one channel, and 2 dB into the other. It is noticeable into the harmonic that is second peaks greater utilizing the Raytheon 6SN7.
Conclusions they do say don’t judge a written guide by its address which is real right here. The so named „clone“ tube did a lot better than the brand Raytheon. Needless to say difficult to tell just how much this correlates with www.datingmentor.org/escort/fort-collins/ a bigger sample of pipes. For now however, the dimensions reveal one step backward so my suggestion towards the owner would be to keep consitently the Russian pipe and offer the Raytheon.
Ron Texas
Significant Contributor
In all honesty. I suppose this shows tube rolling might have a result, nonetheless it really helps to have an AP readily available to gauge the distinction.
Meanwhile, each and every time we see „tube rolling“ we think about a truck internal pipe rolling down a hill up to a river.
Hooked on Fun and Learning
Major Contributor
Cheapest distortion 6SN7 type i have tested ended up being a CV1988.
Nevertheless, there is definitely better alternatives for cathode supporters- the numbers of merit are mu and transconductance, and 6SN7 is kind of center associated with the road there. Its primary merit will be in a position to move reasonably big voltages, that will be certainly not appropriate in this application. High gm triodes like 6DJ8/6922 will outperform a 6SN7 in this ongoing solution, but they are unfortunately not pin appropriate. We suspect the 6SN7 ended up being selected for any other than technical reasons.
mshenay
Active Member
I’ll chime for the reason that I always comprehended „added sound“ from a pipe become one thing „ideal“ for a lot of. Since the noise or distortion for the pipe is 2nd purchase harmonics that are „pleasant sounding“
Therefore if it’s equal added noise in each channel some may enjoy that incorporate distortion over a „cleaner“ sounding tube
I’m not just one that enjoys. added sound beyond whats inherent to performance that is high therefore I would likely suggest the stock. In addition occur to like „russian“ pipes my self anyways. My point being, that I think in Tube Land added noise/distortion is not constantly a thing that is bad. The additional but less distortion that is varied of Raytheon might be just exactly exactly what many people want within their system,
I would personally additionally advise that when your buying [and screening] 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 in the production values for every triode often provide a less exact stereo image and generally aren’t as resolving often times. That 2dB SINAD reading distinction is most likely reflective of „slightly different“ production values for every triode. Or it further reflects that production from both triodes inside the pipe is not an amazing match. The stock pipes production is more consistent with the things I’d wish from the pipe during my own system, it’s maybe not positively 100% but near enough because it’s just like a 99.7% match. VS one other that will be around 98.4 and therefore little difference correlates up to a 2DB SINAD huge difference that we’m yes because of it self is not audible but had been likely to amplify that single which will likely further enhance the „difference“ finally ensuing in a few tiny small undesirable modifications
An we’ll further add that bother about most of these distinctions just legitimate in hybrid systems making use of just one double Channel Triode pipe, and it’s really feasible each of mentioned is complete and utter bull schiit, since again i am no expect of the is solely conjecture predicated on my subjective experience.