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Originally Posted by oarnura /img/forum/go_quote.gif
That's a non sequitur. Body temperature is not a human capability. Unless humans can regulate their temperature at will you example isn't a good one.
For example, Most humans can run. It is safe to say humans can't run at 40 mph. The fastest measured is 27-28 MPh. That is a capability and it has a limit.
Hearing is a capability. Something that has been measured and also has limits.
Most of that says 20-20,00Hz. The oldest of which says 15Hz. So more recent studies prove my point. Thanks.
You forgot to read about the fact that age and other factors have a huge affect on hearing. From what I have read infants can hear 16Hz but average human adults 20-20,000Hz. With high frequency hearing declining with age.
I know you like the NE-7m but please try and be a little pragmatic.
Occam's razor, it is more likely that the NE-7M is inaccurate than you have superhuman hearing. Your own citations prove you wrong.
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Are you for real? I count at least 4 or 5 "strawman arguments" in your reply, and I'm not falling for it.
1. I make a claim that IEM produce bass by moving small amounts of air inside the ear canal, and you go off on 5 tangents and none of them address the original argument. And, each tangent latched onto something else I said and that too went in a different direction. Amazing.
2. variability in humans. Some can hear higher and some lower, some can run faster and others cant, some have a body temperature of 98.6 and some don't. You turn it into an argument about controlling running speed and not being able to control temperature. Using your own argument, you can't control what frequencies you hear any more than you can control your temperature. I don't get your point and I will not argue this with you. It's pointless. Some humans have different biometrics than the average.
3. The study in 2000 also found that hearing limits were 15-20KHz, which is newer than the one in 1998 that found it was 20-20KHz. besides, neither of us has read the full body of all these studies, yet you maintain the results of the newer studies refute the older ones. You say that and turn it into a whole different argument. I say it is more likely that different studies produced different results because of different subjects being studied, and that two of the 5 do confirm my claim that humans (and I) are able to hear 16Hz. By your reasoning - Humans could hear down to 15Hz from 1967 - 1998 when they couldn't hear below 20Hz in a study, then in 2000 they could hear 15Hz again, but by 2003 that ability to hear below 20Hz went away again. Sure, that makes a lot of sense, not. I haven't even looked up any newer studies, but it doesn't matter. There is proof there are humans out there that can hear 16hz.
4. You tell me I forgot to read about age factors. This wasn't about age, so I didn't mention it. It's about you telling me I can't hear 16Hz because I quote, "humans can't hear below 20Hz". If you had said, "Most humans can't hear below 20Hz we wouldn't be having this argument. I prove that statement isn't true and you tell me, well at least adults can't hear that low. You still haven't proven that I can't hear 16hz, or that it isn't possible. Find me a study that says it isn't possible to keep the ability to hear 16Hz.
5. Then you turn an argument about me hearing 16Hz into one about me being biased towards NE-7M. Anyone who reads my reviews might also say I am biased towards Westone 3, so why didn't I claim my $399 IEM can play down to 16Hz? Why would I pick a $50 IEM to use an my example? It's because that is what I heard.
6. You say the IEM I used were inaccurate. I know what harmonics are vs primary tones. I have Michael Knowles "Binks Audio Test CD" in WAVE files on my computer, so if there is anything inaccurate it could also be the wave files, or DAC or amp. I haven't heard anyone report the CD to be faulty.
So, back to the original argument. YOU DO NOT NEED HUGE DRIVERS TO MOVE HUGE AMOUNTS OF AIR TO MAKE BASS. All you have to do is get the air inside the ear canal to move, and smaller volumes moving at the right frequency will do the job.