Thank you, cifani090! Are these known to be good?

I've been to several ear doctors (ENT's) that seemingly have no interest in my problems and also just don't know. I always get the standard comment "You people who love music hear more than the rest of us. It'll probably go away by itself. That's£50 please."   Sooo, that in mind, does...

Good point, Steve!   My DBA-02 came with 6 different pairs of tips (triflange + different single-flange). Will give them all a thorough comparison.   Thanks!

Sounds good! Might do the mini3 then.   The low-gain on the Headsix is 4 dB? Maybe I should design the mini3 for 2x gain then (6 dB)? How would that work with a high impedance headphone like the HD600? Too little?...

Nice suggestions! Thanks a lot!   I might build the mini3 to learn something. And when I've done that, perhaps by the Protector or the Little dot MKV..   Should I be very careful amping the DBA-02? How much can I anticipate that they will handle without breaking?...

I just finally received the Fischer DBA-02 earphones. Directly out of my iPhone they sound very clean and the soundstage and detail is greater than what I'm accustomed to with my cheaper Denon buds, however, it sounds a little dull and lifeless. I've heard the DBA-02 are very transparent, and...

That's why I wrote "crudely".. but it might not have been the correct word. I was more making a jocular point:P But it is still not completely false. The acoustic reflex does provide 12-14dB of attenuation when triggered, but only for frequencies below 1 kHz (so my point is a little moot.. but...

Cheers, tlniec and Ethan! I did not know that, but it makes perfect sense. Will have a read! J

  Quote:   Surely you mean resonance frequencies, not radio?  

Quote: That's a very good point!

A fun fact is that audio equipment of good quality with a good bass response more easily activates the acoustic reflex in your ear, which effectively raises the threshold needed to permanently damage your ear. So better audio equipment crudely means less damage at same listening levels. And...

I listen at what I feel is comfortable level, which I know most of my friends think is too low, so I feel safe:P (I've been anal about not damaging my ears for years.. apparently paid off, as a test I recently took at an audiologist came out with above average results)..    Just keep in mind...

Quote: In addition an increase in 3dB halves safe exposure time, so at 85dB you might be at risk after a few hours. For interests sake, here's the guidelines for workplaces in the UK: if the levels are "80 dBA Leq over 8h (or 135dBC instantaneous)", then "ear protection must be...

As eucariote said, the human ear perceives different frequencies differently (due to lots of stuff, for example resonance in the ear canal due to different wavelengths, etc.). To work around this, there are weighted response curves (dBA, dBB, dBC,etc.) trying to give a good approximation of...

jcx: Thanks for the explanation! That matches what my lecturer said and what I've read in books. I should stop using the internet, seriously. Just confuses;-)