I'm currently planning on making my own pair of headphones. Being somewhat new to the whole audio craze i don't know too much about it, but i have been doing my fair share of research. I'm going to be customizing these from the ground up, except for the speakers themselves, and there are a few questions i'd like to ask. So i'm thinking about using these speakers," http://www.mouser.com/ProductDetail/Kobitone/25CE500-RO/?qs=pO9a3qNHhpHhpCGAHh60Sw%3D%3D ," and my reason behind these is i'm looking for speakers that are preferably 40-50mm diameter, 15hz or 20hz to 20khz, and although ill be able to put out enough power with my amp for 600 ohms i'd like speakers with around 32-128 ohms. If anyone knows where i could find speakers like that, that would be amazing.
One of the things i'm confused about is in most headphones there is a circuit board in each cup, and i am confused as to what those are. I know that most cables are split into 3 wire where one is ground, one is right side positive, and one is left side positive, which transmit to a stereo audio, and when it comes to those circuits, do those circuits make a signal like a 5.1 surround sound or do they just deal with noise cancelling?
Since i'm building these from the ground up, i am teaching myself how to use autocad inventor and that jazz, but i will be creating a complete 3d model of the whole thing. Also, i plan on making these out of wood, which i am very skilled with, and i know they may be heavy but i want to have some style to them. I would mostly be using these at my desk where i can plug them into my amp and there wouldn't be much background noise at all, but i might want to bring them somewhere every once in a while. With that in mind, should i create them as closed back or open back? My idea of these headphones are heavily inspired from this man's homemade pair- http://www.instructables.com/id/Wooden-LED-Synced-Headphones-from-Scratch/?ALLSTEPS
I feel like i rambled for long enough, but i needed to get it off of my mind. If you have any suggestions whatsoever, feel free to let me know. Thank you everyone!