Re: Correct Earphone/Earbud Impedance for Sangean DT-400W
I believe, after extensive testing ending about eight months ago for a magazine and upcoming white-paper, one will find that there are many ear-buds that have terrible performance, and even poorer sound qualities. Some were defective right out of the sealed container or packaging.toggle quoted messageShow quoted text
The results seem to be all over the place, ranging from no bass reproduction at all, to low volumes, to not fitting in or over the ear properly which cuts off sound or performance, etc.
Performance or problems with impedance were tested, but of the 25 or so test candidates, not a one audibly or impedance testing show a lick of difference.
Most all the seven receivers tested (Sangean represented by the 909X series) specified a range of earphone impedance, thus ear-bud as well, from 4 ohms to 32 ohms, and the various ear-buds performance never changed regardless of the ear-buds that specified an impedance.
Of the 25 various ear-buds tested, be they name brand, off-brand, low-cost, very expensive, perhaps 14 of them had what might be termed respectable low frequency, high frequency responses, credible volume and clear reproduction. Exceedingly few had qualities and performance that rivaled or were expected to rival even lower-end full headphones.
Bottom line ? One can spend minutes, days, and partial lifetimes worrying about items like ear-bud or headphone impedance, and then realize that in the vast majority of cases and situations, it doesn't really matter.
--- In ultralightdx@..., "KeithB" <keith1226@...> wrote: