Originally Posted by doyll
Originally Posted by Mega Man
first and foremost i am frankly surprised to have to have this conversation with you of all people
besides GTs being time proven with type
of sound vs other fans. but the part that surprises me-- is the fact you are using a excessively poor testing procedure
box specs mean nothing, max pressure, static pressure, cfm- useless......
lastly with a PQ chart which phanteks along with most other manufactures refuse to supply, with my experience in what i do i would be willing to bet with pretty good accuracy they would lose to the GTs with their inferior design,
now if you do have a pq chart feel free to prove me wrong. or ask phantek, as they seem fairly open to talking, maybe they will provide a pq chart .... but i wont hold my breath
"First and formost I am franly surprised" by your lack of understanding of what I am presenting and saying. Sound profiles are extremely hard to record and rarely sound like actual fans when played back .. and what 'box specs' are you referring to
.. because I did not post any box specs!
What is 'excessively poor' seems to be your understanding of data rather than what I posted.
You of all people should understand independent testing data and how to plot pressure differential and airflow at different fan speeds.
Martin did very good testing, but that was years ago so we have no comparison testing of newer fans.
All joking aside, if you want more current data look at Thermalbench testing. That's all done with radiators showing air speed and noise levels at different RPM .. and verifies what I said about GTs no longer being best of the best, but middle of the pack.
Or CoolingTechnique graphs using data from charts I posted.
If you want more graphs, got to http://www.coolingtechnique.com
and search for fan you want data on.
First, " box specs" =this fan had this much cfm at this rpm. You provided allot. Now if you read and understood the article that i linked. You would see what I mean ( ironically pq charts are only valid at rpm tested ) that with varying back pressure the cfm changes as does the pressure from the fan. Just like a pump curve.... go, figure.
Second the graph of cfm through a rad. Again cfm is HALF the picture you can have high cfm and low pressure, which for rads, filters and making positive pressure in pc cases is a BAD thing.
But Lastly while not an argument but frankly food for thought, the sound profile while being subjective, again gentle typhoons sound better to most people who have heard them. Why I don't know... I dont deal with that. One is an industrial fan. Used in industrial things - like office equip. Other is a pc case fan..... which do you think had had more r and d ... Why do you think gts are still considered best for so long... great thing about fans, it's physics based, not tech based, so things don't really change ( same with motors ) - they can - but it is rare
Edit - You edited your statement my response to the new one coming up
Second graph - not a pq chart looks to be left side low rpm to right side high rpm (meaning speed controlled fan) which again does not take into account back pressure (restriction) like a pq chart and again is useless unless you use the fan in the exact scenario as tested, most of these tests are done free standing. With no back pressure (again restriction) so the moment you put them on a rad, heatsink, filter, mesh or combination there of the results are invalid, or the moment you put them on a different one....
Thanks? You proved that in real life useage the gt is best not including sound into the equation? ..... :headscratch:Edited by Mega Man - 4/23/17 at 3:16am