Has anybody tested Beyerdynamic DT 60 Pro earphones? Are they worth trying? Sound quality and comfort? DT 60 Pro Their price was halved recently: BEYERDYNAMIC DT-60 BEIGE - Thomann

I need a microphone to accompany Etymotic ER-4 earphones and would be very grateful for any recommendations. Important points are: * must be attached to the head in some way, as to track the head movement; * must be comfortable enough to be used for many hours continuously, along with...

Quote: Originally Posted by Deiz I extrapolated off of figures given for the Fiio E3: 70 mW @ 32 ohms, 12 mW @ 300 ohms. The simplest way is first to solve for open circuit voltage and source resistance, assuming that the source is linear within the range of quoted values...

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I need a microphone to accompany Etymotic ER-4 earphones and would be very grateful for any recommendations. Important points are: * must be attached to the head in some way, as to track the head movement; * must be comfortable enough to be used for many hours continuously, along with...

Has anybody tested Beyerdynamic DT 60 Pro earphones? Are they worth trying? Sound quality and comfort? IMS 900 The price was halved recently: BEYERDYNAMIC DT-60 BEIGE - U.K. International Cyberstore

Quote: Originally Posted by b0dhi -So the electret(s) were in your ear-canal The microphone was at the ear-canal opening, where earbuds get placed usually. Quote: Originally Posted by b0dhi the headphones placed on your head as per usual? Exactly. That...

For a quick way to estimate sound levels without using a sound level meter please look at my posts here: http://www.head-fi.org/forums/f4/bes...1/#post5039131 http://www.head-fi.org/forums/f4/bes...ml#post5043217

Quote: Originally Posted by Fitz I just applied a high shelf eq to attenuate all frequencies above 1KHz Do you know what was the the actual frequency response produced that way?

Quote: Originally Posted by Fitz I'm not sure why you're so against measuring a full sweep of the frequency response? At the moment I feel much more comfortable with wavelengths measured in meters, rather than in millimeters 10 kHz measurements are 1000 times more difficult...

Quote: Originally Posted by Fitz you can't tell if they're bass heavy or not by measuring a very limited frequency range. 10 Hz to 1000 Hz is NOT a very limited range as far as the bass in concerned. Actually, it's more than we need to judge the presence or absence of...

DT770-2006 response on HeadRoom site is fundamentally different from my sweep: They got a much more spectacular response with 8 dB notch on 45 Hz, where the wavelength is over 7 meters. Well, I couldn't imagine a way for such a simple oscillatory system to have a response as complex...

Quote: Originally Posted by Fitz 1KHz is still not enough to get an idea of the overall frequency response, you'll want to go to at least 10KHz. Overall frequency response is beyond me at the moment. There is no point in attempting 10 kHz measurements before I get everything...

Quote: Originally Posted by Acix The signal above the 0db boost from 50-130 (bass + low mid). That only 1 dB or less, which is not bass-heavy by any stretch of imagination. Actually, it's quite difficult to notice such a small change even when one knows it's there. Please...

Quote: Originally Posted by Fitz How do these measurements compare to the rest of the frequency response? Your results only show that the bass itself is fairly linear (typical for headphones), but not how loud or soft the bass is compared to the rest of the spectrum. The response...