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Dave Bottom
开云体育The issue with small speakers for communications use is that you want something quite different from HiFi speakers in several aspects. While I use headphones exclusively for operating, I do like to “read the mail” (listen) while working in the shop.? The key is proper frequency response, good absorption of sound off the back of the diaphragm to limit distortion caused be the reflections hitting the diaphragm, and proper strength magnet to control the voice coil movement. For our communications headphones we build a metal frame, Mylar cone driver with Neodymium magnet that provides high sensitivity but huge dynamic range, 200-6000Hz response to cut off noise that is of no value and quite fatiguing to listen to and the Mylar cone (diaphragm) is not disturbed by moisture and temperature changes to give excellent control over the voice coil positioning. I could make available to the community a kit with a 50mm, 32 Ohm driver, foam dampening and mounting hardware (3mm standoff’s, Screws, lock washers and nuts) 2 mounting points, if enough people are interested. I can make one and show how it could be installed. ?Output can be attenuated even as these are easy to drive and the uBITX has tons of output. Dave WI6R Google “radiosport headsets”? Sent from my iPhone On Jan 21, 2018, at 10:51 AM, philip yates <phil@...> wrote:
Mine is a 2watt rated ex-Yaesu VR5000 speaker. 8? 2w 3inch. Think you have to take into the baffle effect of the panel that its mounted behind, mine sounds good, saying that I did plug it into my Yaesu SP-8, decided that the 3inch speaker was far better. Phil - G7BZD On Sun, Jan 21, 2018 at 6:47 PM, ohwenzelph via Groups.Io <Ohwenzelph@...> wrote: On Sun, Jan 21, 2018 at 09:25 am, <tommason56@...> wrote: |
