I'm thinking of building my own earbuds. I haven't found a pair out there that I've liked, and I'd like to do some experimenting with 3d printing. I'm thinking of using these drivers: http://www.mouser.com/ProductDetail/Knowles/SR-31843-000/?qs=wXYKXUmoKsc8otmJ/V2Ctw== Mostly because they're the only ones small enough, and seem to have the correct frequency range that I would assume would be for a general earbud speaker. It's the only one that I can find that has the appropriate diameter that I need. They're about $5 each, and look a lot more fancy than the speakers I typically see in most earbuds. Are these appropriate, are they better in sound quality, and since I've never journied into the high end world of earbuds and iem's, if I did build an earbud based on these drivers, what would the comprable price of them be?