Human imaginations are always extraordinary. To start with is a astounding biological diaphragm here. On the left is the image of EX1000 liquid crystal polymer film diaphragm, whereas on the right is that of E888 biological material diaphragm. The manufacturing process of biological material diaphragms is as follows: Upon glucose intake, Acetobacter aceti will produce some celluloses in diameters of 200A to 400 A, (1A is ten thousandth of 1uM.) which are also known as biological celluloses. By use of cutting edge biotechnology, they may then be fostered to thickness of 2mm and in specified ways of growth. After that, dehydrate and leave them in metal tooling for compression of 20um in thickness. And then, there it is, some biological material diaphragms are born. An example of headphone of such is: Sony E888 Sony r10 Charateristics of its timbre: Trebles are high, though not sharp. They offer a spacious impression and detailed resolution, with instruments being clearly separated and distinguished. Much to anyone’s surprise, details which can be listened for only on large headsets are also clearly audible by headphones with biological material diaphragms. Their mid range frequencies are particularly glamerous, in that it won’t become tiring after listening for a long time. Vocal parts have a thorough sense of encirclement, so when instruments are blended with vocals, the overall dynamics still perform in an very orderly manner. One is always able to tell them apart easily. All in all, quality of sound integration is phenomenal. The following is example of another weirdo – carbon diaphragm Craftsmanship is exclusive to JVC. Hence, no relevant information is yet disclosed. If any of you know something about it, please fill me in on the details. An example of headphone modal in use of such is: JVC HA-M750 For this model, simply make reference to previous forum reviews. Below is a structural layout widely known as liquid crystal polymer diaphragms. Craftsmanship With regard to craftsmanship, actually it is made from pressed liquid crystal polymer over molds, but then its specifics are classified. An example of headphone modal in use of such is: Sony MDR-1r Sony Z1000 Sony Ex1000 Charateristics of its timbre: Sony says that liquid crystal diaphragms have the ability to output extraordinay high frequencies (nearly 80k Hz), which are threefold of most upscale headsets in the market today. However, an average person can only detect audio frequencies within 20k Hz. What intrigues Sony to manufacture such an off-mainstream gadget is beyond comprehension. Admittedly sound quality is more commodious and aesthetic, with enhanced mid range and treble subtlety. Here comes our finale, a truly bizarre piece in headphone indutry– wooden diaphragm Wooden diaphragm of 0.01mm thickness An example of headphone of such is JVC FX 800 JVC FX 800 I have looked everywhere for such relevant headphone craftsmanship, but regretably nothing comes up yet. Though some information on related speakers is found. That should more or less serve the purpose. Those of you who know Japanese may want to help out on the translation here. The lubricant reputedly capable of doing magics on woodware is Japanese Sake. This is the stucture of a earbud coupled with certain brass incrustation. Charateristics of its timbre: As for FX800, its sound spectrum does not have any definite directivity. Mid range frequencies and vocal parts are restored naturally. It gives off a sense of complete penetration. Vocals and accompaniments mingle well to a large degree with precise orientations. Vocals are centre placed, though without a feeling of forward piercing, or a sense of remote alienation. The only shortcoming is that low frequencies are relatively muddy and sub basses are quite dry. That’s pretty much all I know about drivers and diaphragms. If any of you guys come across other genres, you are more than welcome to share them here. Thanks. Oops, one last thing, Philip’s Layered Motion Control (LMC) diaphragm suddenly comes to my mind. have you any info on this baby?