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Post by arnyk on Jan 2, 2017 12:21:07 GMT
Why is it then that when you remove in-ears from your ears, and hold them in mid-air, only some sqrueeking of high frequencies is heard? This happens because you are abusing the headphones and not using them as they were designed to be used. Not really. If you listen the sound of most 15 inch drivers bare, suspended in space they sound pretty horrible. The sound from the back of the cone at low frequencies being largely nondirectional, comes around to the front of the cone and being of the opposite polarity, it cancels the bass out. As a rule 15 drivers are designed to be used mounted in a box, or at least mounted on a large baffle board to prevent this. You're making the mistake of trying to generalize from a specific case of just two items to the general case which involves thousands of items. Since I've listened to probably more than 100 in-ears and over-ears in my 55-odd years as an audiophile I'll confirm what should be obvious by simple reason: All in-ears don't sound the same, and neither do all over-ears.
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Post by philietes on Jan 2, 2017 18:13:33 GMT
Clear, thanks! So a wavelength of 30Hz is possible for in-ears. It just seems to me that most headphones, even cheap ones, go lower than my in-ears. I thought it might have to do with the bigger driver, or that wavelengths <80Hz are rather felt than heard, and that over-ear headphones take advantage of this more. But I believe you immediately when you say it does not matter and the difference is just in my head.
On a different topic, I have a grounding question I can't seem to figure out myself..
My setup is as follows: 2x Technics 1210 w/ Shure M447 cartridge connected to; 2x Bugles2 connected to; DJ mixer connected to; Amplifier. How do I setup the grounding properly without a ground loop? Is it correct to ground the turntables to the Bugles and be done with it? Or should the Bugles2 be grounded AS WELL, but to my mixer ground input? The strange thing is my allen & heath mixer has a ground input, but the power cord is just a two-way...
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Post by arnyk on Jan 2, 2017 21:01:39 GMT
Clear, thanks! So a wavelength of 30Hz is possible for in-ears. It just seems to me that most headphones, even cheap ones, go lower than my in-ears. I thought it might have to do with the bigger driver, or that wavelengths <80Hz are rather felt than heard, and that over-ear headphones take advantage of this more. But I believe you immediately when you say it does not matter and the difference is just in my head. I'm not sure that the difference is in your head, but I am sure that a tiny little IEM driver (the right ones) can possible reproduce very low and clean because then doesn't have to do a lot because of the size of the tiny air volume they have to work with. On a different topic, I have a grounding question I can't seem to figure out myself.. My setup is as follows: 2x Technics 1210 w/ Shure M447 cartridge connected to; 2x Bugles2 connected to; DJ mixer connected to; Amplifier. How do I setup the grounding properly without a ground loop? Is it correct to ground the turntables to the Bugles and be done with it? Or should the Bugles2 be grounded AS WELL, but to my mixer ground input? The strange thing is my allen & heath mixer has a ground input, but the power cord is just a two-way...[/quote] As a rule, I don't troubleshoot so-called ground loop problems remotely. They are almost always dependent on things that I'd see if I were on-site (and then correct them), but the person I'm corresponding to can't or doesn't communicate to me me in writing.
I presume that by Bugles2 you are referring to the Hagerman Labs product which is is a kit of sorts, not a actual standard audio component.
I suggest that you get an inexpensive RIAA preamp (preferably battery powered) and set your system with it and see if you still have hum. Here is a possibility: Purchase link for RIAA preamp
You see, ground loop is a diagnosis not a symptom. It is probable that this is a presumption, not a proven fact. All presumptions can be wrong, so you may not even know what the actual problem is. It could be the wiring in the turntable, the cartridge installation, how the Bugle2 is wired up, how the Bugle2 power is applied, or in the mixer or wiring going to it.
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Post by Ethan Winer on Jan 7, 2017 19:00:44 GMT
To get bass from a tiny driver requires coupling the driver's output directly into your ear canal. Otherwise it's just a really tiny loudspeaker.
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