it would be great to try out the k712, but in the end i want a mobile solution and from what i understand the K712 is not that easy to drive. i kind of think, but cant know until i hear it, that the high mids and low trebles on the k712 is going to bother me, similarly as it does on the k553.
but i will try to check one out if i can find one locally. reading about the k712 on headfi , it mentions that compared to the k701 it is boosted below 1K, in a relation to above 1k, which sounds good to me.
when you say glass does not block bass, you are talking about the outside of the car.. i am talking about the inside of the car. im talking about the fixed air volume created by the space, .. . the inside of a car is like the inside of a speaker cabinet , or the back side of a closed back headphone. so when you open the window it is like a port. the resonant frequency response of this chamber affects the sound and you can really feel the difference if you try it. even if you are in a small room with speakers, and the room has windows and doors but they are closed.. if you open the door you will notice the difference in sound.
at a certain point when the room gets large enough it starts to affect reverberation ,, which is higher frequency,, so like in a stadium for example, it sounds totally different than in an indoor arena.. but in rooms smaller rooms or cars it affects the bass and lower end response. try it.. just have your stereo on with the car parked with a tune that has some bass and soon as you open the window you will hear the response change ... open systems as opposed to closed systems have a completely different sound, and this is evident in headphones and a lot of people prefer the open sound, including myself.. because closed acoustical systems always create a resonant effect that may artificially increase bass response that is naturally lost . its sounds artificial.. hopefully you will try the car experiment and get back to us.
so far as my ears, i think my ears only go up to about 15k..and hearing is more a function of the brain than anything else.. you know how when we communicate with people it is often or always impossible to exaclty know what they meant. and when you or I listen in an analytical way to a headphone , we might listen to the bass one pass, the mids on another pass , and the highs on another pass. or we might try to isolate instruments on each pass. the amplifier is usually capable of recreating signal input more accurately than a musical transducer which has to change electrical signals in to mechanical movement of air. .. same on the input with microphones.. Microphones are all colored.. even if they are meant to be flat. vocal mics are different than instrument mics and ribbon mics sound different from dynamic mics. so the recorded performance is to start off very colored.. on the other end of the amp.. the musical transducers, the speakers or the headphones have an equally difficult job as the microphones.. then the eardrum has to convert the mechanical signal of the air waves to signals that the central nervous system can transmit. and then the brain just decides what it wants to hear anyway. if any body thinks that the best way to understand they are going to like a particular sound is by a graph that is a few kilobytes is crazy.. i think that in forums like this.. people need to do a better job of talking about the bigger picture.. all the graphs and discussion of that has already been done ad infinitum. we need to discuss different paradigms of understanding what we are hearing that give a bigger picture to an understanding of the equipment and most importantly its users, which are us and the enjoyment of that.. one could say that the most truthful representation of the music is the most important job and that that is what the graphs show, but i would disagree with both of those points. sometimes in discussions we have to agree on things in order to move forward, but i think we have all already done that. and what we are doing is really beating a dead horse with a stick.. so go in the car and open the window...
