@Noctua_at How suitable is the NV-AA1-12 airflow amplifier for the NF-A12x25 G2?
English
M
48 posts
@Noctua_at @FrameworkPuter @printablescom Since you're using 3D printing, would it be possible to further optimize the vent in terms of 3D structure (e.g. cross section of struts)? Right now, the design seems to be purely 2D.
English
How to make the @FrameworkPuter Desktop run even quieter? Our 3D-printable side panel design available through @printablescom can lower noise levels by 5-7dB(A): noctua.at/en/how-to-make…
English
Available now: The NF-A12x25 G2 is the second-generation, further improved successor to the groundbreaking NF-A12x25 and 120mm sister model to the award-winning 140mm NF-A14x25 G2: noctua.at/en/noctua-intr…
English
@Noctua_at What's the plan for the original A12? Discount, discontinue, or something else?
English
@Noctua_at @computex_taipei May I learn more about the USB inline fan controller? Does it step up voltage? Can it negotiate different voltages from the power source?
English
We’ve had a very busy first day here at @computex_taipei 2025, here’s a quick sneak-peek at some of the new things we’re showing off this year. Stay tuned for the media coverage!
English
@Engineer_Wong I've seen some purifiers that claim that their filter only needs replacement after something like 3 or even 10 years. What's your thoughts on these? Are these estimates realistic at all?
English
We can't see PM2.5 with our eyes, but once you start filtering the air and see how much gets trapped in the filter, you'll never want to stop. It's much better for that dirt to be in the filter than in the lungs. reddit.com/r/AirPurifiers…
English
@Noctua_at What took it so long? It seems to be in completed form way back in 2017: noctua.at/pub/media/wysi…
English
Introducing the NF-A6x15 slim 60mm fan: Complementing our existing, 25mm thick NF-A6x25, the new, 15mm thick NF-A6x15 is available in 12V and 5V variants, both with 3-pin and PWM 4-pin connectors: noctua.at/en/noctua-pres…
English
@Engineer_Wong The shell would add assembly complexity and weight, right? Doesn't make sense for a portable unit.
English
I am still designing new air purifiers.
There are two ideas.
A. Similar to the 3Pro, still portable but with much better aesthetic.
About $190.
B. Something that is two times taller than A, so not portable anymore. But it has double CADR than 3Pro, Also with much better aesthetic.
About $390
Because my finance status only allow me to develop one of them. Which one do you prefer.
1/2 🧵
English
@Aquilae_X Although definitely not to the extent of the intlet side, obstacles at the outlet side also affect noise. This is especially apparent if the outermost region is blocked. You can try moving your fingers around the outlet side and hear how noise changes.
English
@Aquilae_X Also, LS-PWM variants behave no differently than manually capping the fan speed via software means. It will not solve your issue.
What you should look forward to instead is perhaps the A12x25 G2.
English
@Aquilae_X In your case then, A12 seem to be the better choice.
Aside from sound signature differences, it could be due to the fact that your case is not optimized for 140mm fans - the mounting rails block 140mm fans much more than 120mm ones, which block airflow and also increase noise.
English
@Aquilae_X I recommend running some thermal tests at similar noise levels to see which fans are better for your use case. If the A14 G2 does offer better noise-normalized performance, what you should do is to set up custom fan curves to cap the fan speed, as it has higher noise ceiling.
English
@Aquilae_X In general, the larger the diameter, the noisier fans get at the same RPM, but airflow per RPM also increases. Basing your opinion on RPM is meaningless. You should focus on noise-normalized performance (or the other way round - how quiet you can get at identical performance).
English
@Aquilae_X According to HWcooling's tests, when noise-normalized to 31 dBA, A14 G2 is 590rpm, whereas A12 is 787RPM, so you're spot on with the noise level. That said, even though there's a notable RPM difference, A14 G2 offers higher airflow at the same noise level.
hwcooling.net/en/noctua-nf-a…
English
@VentiloAngel @Engineer_Wong @dannyashton Some of the best sources on fan performance are HWcooling.net (noise-airflow data on various obstacles) and hwbusters.com (PQ curves).
As for SanAce fans, the reputation is based on anecdotes. They do provide PQ curves on their official site though.
English
@mong_twi @Engineer_Wong @dannyashton Thanks for info. I don’t know SanAce and Silent Wings Pro. Have these been tested in a testing chamber? Do you have any results to provide?
As for the Noctua, I have two here, and my testing chamber was set up yesterday. At this point, I'll get results after hours
English
In August 2024 i've tested the AirFanta and variations with other fans.
Result: for the quiet operation it is about the same
But Airfanta Fan offer the turbo fast cleaning at max level, so i prefer the Airfanta fan
Adam Wong@Engineer_Wong
A nice modification of AirFanta products by using other PC fans.
English
@Mr_Inquisitr @RalfIniert @Engineer_Wong @Noctua_at The A14 G2 max out at 1500RPM. In terms of airflow, a 1500RPM fan has no chance beating a 2900RPM one. The peak performance of these Noctua fans should be around 6V level of the stock fans (~1900RPM).
I cannot stand the stock fans above 5V anyway, so it doesn't matter for me.
English
@mong_twi @RalfIniert @Engineer_Wong @Noctua_at Awesome! What is the improvement at the mid and higher ends of the voltage ranges?
English
@VentiloAngel @Engineer_Wong @dannyashton The Noctua A14 (G1) are very average fans, I can't recommend them.
If you're after performance only, stick with the stock fans.
If you want both peak and noise-normalized performance, Silent Wings Pro 4 or P14 Max.
Ultimate option: SanAce 9RA1412P1G001 - 140x38mm, 4250RPM, pricy.
English
@Engineer_Wong @dannyashton if i guess i don't think after testing i will choose Noctua, that's my Gut feeling. They are expansive also
English
@mong_twi @Engineer_Wong @Noctua_at Very curious about the ‘mini’ 2-FanTa.
Can you share more about it? Have been looking for an ultraportable option like this.
English
@ulc2020 @Engineer_Wong @Noctua_at For tools, you only need a screwdriver. The fans are mounted using regular fan screws.
The original fans are powered by a regular DC barrel plug, so you need a DC to 4 pin fan adaptor to reuse the DC adaptor. Or, you can provide your own power source and add PWM control.
English
@mong_twi @Engineer_Wong @Noctua_at How difficult is the replacement? (E.g., does it require soldering, etc.?)
English