Brendan, Not to be argumentative, but some with HF hearing loss may be bothered by this distortion even though it is low level and is not in the range of conscious hearing. When I first became aware of my HF hearing loss, I found that I was increasingly irritated by low grade audio devices because of the THD. It seems I can 'sense' the distortion even though I cannot actually hear in that range. Strange as it may seem, I went on a quest for better fidelity in sound as my hearing loss became worse. I have mentioned this phenomenon to several knowledgeable dealers in audio equipment as well as my audiologist and they have confirmed what I have observed. If the hearing loss is across the full spectrum, the increased perception of distortion is not present. My lower range hearing remains normal, and my audiologist tells me that is an unusual condition, so that may have something to do with my perceptions. I will put the LPF on my K3, 'just in case'.
73, Don W3FPR. Brendan Minish wrote: > As I have pointed out before, It's subtle, you are not going to hear > this at all if you have HF hearing loss, the D to A chip is performing > per spec and the K3 prior to this change is already better than a lot of > the competition. > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html