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audioguru, I am publicly upset with your statement as such is not the case, and your name being 'audioguru' you should know better than making such broad misleading statements especially to someone trying to learn something, provide information or keep your negativity to yourself.Cell phones have low power small "speakers" like that. They produce squeaky sounds with no low frequencies.
You don't have to guess the impedance of a speaker, all you need is a multimeter set to measure low ohmic resistance.
There is ohmic resistance there is inductive resistance, and there is capacitive resistance, all three are non linear in the real world, all three and more form complex impedance.
Sorry, typically in a speaker setup the impedance is a direct match to the DC resistance.Or whatever.
[/quote]Sorry, typically in a speaker setup the impedance is a direct match to the DC resistance.
I know what earphones laying on a table sound like. Just high frequency squeaks. The tiny speakers can move the very small amount of air from them to your ears but in the open they produce NO bass frequencies. Cell phones are the same."Cell phones have low power small "speakers" like that. They produce squeaky sounds with no low frequencies."
audioguru, I am publicly upset with your statement as such is not the case, and your name being 'audioguru' you should know better than making such broad misleading statements especially to someone trying to learn something, provide information or keep your negativity to yourself.
My first computer was a Compaq with tiny speakers built into the monitor. The drivers had a paper cone and were an oval 2" long by 1" wide in base-reflex (ported) enclosures. They produced pretty good but not loud sounds down to about 100Hz so no deep bass.That speaker WILL produce solid low frequencies in the same power output range as it does it's mid and high tones IF it's put in the proper speaker cabinet, which would be many times larger than the speaker for free air speakers.
No.Them being headphone drivers they did produce bass, because the air cavity between the ear muff and the ear itself acted as the resonant cavity.
The example posted had no practical considerations so I'm sorry it failed utterly at being one. "or whatever" doesn't cover anything, except that you have no idea of what you're talking about.
A speaker may have an impedance of 8 ohms, but a DC resistance of only 6.5 ohms. Or whatever.
I can empirically prove that wrong, I've frequency tested over ear muffle (non ported) headphones that produce bass down to 30hz or so. Try a modern pair of in ear headphones and you'll be even more wrong, I've tested in ear headphones and found I could tell the pressure difference down to close to 10hz, when I alternated the phase between left and right ears even at low volumes the resonance was so bad that it caused me to rip the headphones out.No.
The tiny air volume between an earphone and your ears would resonate at a pretty high frequency but does not resonate. The tiny air volume behind the little speakers would resonate at a pretty high frequency but it also does not resonate.
The tiny drivers don't have enough mass (weight) to resonate.
carbonzit, please look up the definition of reactance, there is no BS going on here at all. Capacitive reactance and capacitive resistance are both dictionary valid methods of defining resistance to flow. Sure it's slightly inappropriate language from a technical standpoint and I'll admit that gladly as to the words I should have used but it invalidates absolutely nothing of what I've said so far from a functional perspective. The error in your post is the language is irrelevant to what I was describing in this particular case.