DNA40 vs SX350j
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I don't think anybody gives a crap anymore. They both do what they're intended to do, one way or the other.
The only person really interested in these debates was forced to move on some time ago. It has been quite friendly and peaceful since then.
Regards
Tony
Sent from my keyboard through my phone or something like that.
The only person really interested in these debates was forced to move on some time ago. It has been quite friendly and peaceful since then.
Regards
Tony
Sent from my keyboard through my phone or something like that.
I very respectfully disagree. I've been reading through the thread; yes, it did unfortunately degrade to fanboyism (and yes, I have had the pleasure of running into the person to whom you refer since joining a couple years back...), but I do think it's still a very relevant comparison for anyone in the market for one or the other (as I was just a few short weeks ago). I'm the type of person that doesn't buy (and doesn't want to buy) new gear frequently; I want something that will be good, consistent, and that will last a long time. As such, I put a great deal of time into researching devices/attys/etc. before pulling the trigger. I find threads such as this to be incredibly helpful in making a decision (well, at least until it turns into an all-out flame war...).
I completely agree that both chips have been proven to do what they claim to do, and they both do it well, so I'm sure (as with me) a lot of decisions will be made on differences in features, opinions, reported experiences, and very minor preferences. It's just unfortunate that these threads do turn out the way they do, as I think it's the people who need them most (ie, people legitimately seeking information) who end up losing out.
I will leave the thread I do not want to create bad feeling, I understand how they both work and not asking that at all.
I'm going to say here what I've been saying for months in private (the people who really know me, know what I'm talking about).
Evolv isn't bad, their boards are actually good. So good I own all their TC models but they gave their reps a white check to say whatever goes through their minds. There are a handful of complete fanatics out there that believe they are doing a great service to Evolv by defending their products at the expense of slandering, bashing and offending anyone that remotely has a doubt about their products.
Believe it or not, 90% of the horde of people against the dna are, in fact, against the fanboys. How many people wish the dna 200 would fail just so they could shove that failure down the fan boy's throats? A lot, I assure you.
Regarding this thread, it was purposely created to draw the Evolv fanatics out of the sx mini m thread since they were constantly haunting people that just wanted to discuss the yihi chip.
There is no better or worse. Time has proven they both work in their own way. Pick out the one that suits you most (features, warranty, support, etc)
Regarding the person who's name shall not be spoken, I'm actually sad he's gone. At least we knew where he was and with whom he was messing with. Now we browse the forum and have to watch the shadows trying to set apart friends from foes... Life used to be simpler.
The only people capable of providing real info about both boards are those who own both, have no interest in either party and don't give a damn about who made them.
Good luck
Regards
Tony
Sent from my keyboard through my phone or something like that.
Haha, yes, he will be missed. Granted, he was annoying, obnoxious, outspoken, and oftentimes ignorant, but he's been around as long as I've been a member. He was a staple here at ECF. I suppose you eventually learn to tolerate him.
Errr, perhaps "tolerate" is too strong a word, but you get the idea...
In case any lurkers/etc really are looking for an answer to this question:
The SX350J does not monitor resistance/adjust voltage while the device is being fired in power mode; it picks up the last resistance before being fired, and fires at a constant voltage until the button is released.
Based on the charts I've seen, the DNA40 continuously monitors resistance and adjusts, even while the device is being fired.
The reason the SX uses PFM in temp mode is because it needs to pulse the coil in order to detect the resistance (and then adjust power accordingly to maintain temperature), whereas the DNA uses another method to detect resistance without having to pulse (I'm not familiar with the details).
As has been said, though, while the chips do use different methods, the resulting vape experience is pretty much identical in most practical situations.
I'd say the above is mostly speculation. For example, I'm highly skeptical you have any way to show whether or not the SX Mini monitors resistance during firing. The assertion that it does not adjust voltage during firing when resistance changes, even if true, would not allow an observer to know whether resistance is being monitored during firing. The choice of what to do when resistance changes is basically an engineering decision. E.g., Evolv may have chosen to adjust the voltage, YiHi may have chosen to keep the voltage fixed. Both approaches can lead to bad outcomes. The preferred solution would probably be to turn off power after detecting a large resistance change and then display a check atomizer message.
Same thing goes for the SX using PFM in temp mode, where external observation may have led to tail wagging the dog speculation. For example, what one assumes to be a resistance check pulse may be voltage solely due to noise and not the chip. If so means that the SX Mini may be using an offset compensated ohms measurement method to make the measurement of resistance during firing more accurate. More accurate measurements can improve the control algorithm, but they aren't necessary per se. For instance they may have decided on PFM, then realized they could use the offset compensated ohms method (or some other low voltage measurement approach) while they were at it to improve the experience.
Otherwise, I do agree with you that the above speculations really don't matter that much, as it's how they perform that matters most and in that regard they are fairly similar enough.
Hardly:Also, for everyone who says the Chinese just copy and don't do anything innovative: you're absolutely right. I mean, yeah, technically they did invent the electronic cigarette, but that's just a technicality, right?
Patent US3200819 - Smokeless non-tobacco cigarette - Google Patents
Yes, they didn't invent the electric cigarette using a heat bulb that heats moistened air, but then no one uses that anyhow. What they did figure out was the use of a heating coil and wicking directly against the coil, which the patent cited doesn't describe.
Yes, they didn't invent the electric cigarette using a heat bulb that heats moistened air, but then no one uses that anyhow. What they did figure out was the use of a heating coil and wicking directly against the coil, which the patent cited doesn't describe.
Well stated Yozhik.
I will concede that, if you take the absolute literal, lawyer-speak version of my statement, then yes, technically some guy in the 60's "invented" a device called an "electronic cigarette." As Yozhik points out, though, there are very significant differences between this patent and the first modern interpretation of the electronic cigarette.
Haha, keeping me honest
I'd give myself a little more credit and say it's educated speculation, but that is indeed still speculation.
I do stand by my statement, though, that the SX does not adjust voltage when firing. I personally observed this behavior on my SX mini, courtesy of a semi-loose wire in a Kayfun build. If it makes any difference, my firmware is v2.2.
Again, just a small difference in the way the DNA and SX operate. It doesn't make a noticeable difference in typical, day-to-day vaping, but I just wanted to state it in case someone finds that type of information important.
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