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Old 07-29-2010, 04:51 AM
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dfkt dfkt is offline
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Join Date: May 2006
Location: Vienna, Austria
Posts: 15,330

Indeed, that is a bit of a paradox. The EP630, V-Moda Vibe, and most others are 16 Ohm drivers with generally (IIRC) higher sensitivity than the 26 Ohm HJE900. I don't have all of those, but I know that my (very similar) CX300 hiss rather badly with most of my players, while the HJE900 definitely don't.

Now I don't have any stock sound card in any computer to try, but I know that for example newer Realtek sound cards do a kind of impedance matching/sensing with an attached headphone load, so it might be that such sound cards automatically boost the output too high with the HJE900, and use a more tame amp setting with the EP630. That's the only explanation I can think of.

Now I wonder if an inline volume control or an impedance adapter would remove the hiss from the HJE with such sound cards, or if it would make it worse.
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