Trevor Dunne wrote: > I am allmost ready to order my K3 but I keep reading about people that are > unhappy with the RX audio, > > Is this still a problem ….
Hi Trevor, No, it is not still a problem. When the K3 first shipped, it had a few issues affecting audio that have all since been corrected. First, we added a balanced audio low-pass filter to the DSP board to remove sampling artifacts above 8 kHz that some operators could hear. Next, we made two rounds of firmware changes to improve in-band audio IMD. These changes included new AGC algorithms and a bug fix that corrected AGC attack/decay linearity. The K3's speaker amplifier is a type-AB linear device that can put out considerable power into a pair of 4-ohm speakers. While it's true that amplifiers in this class can have some low-level IMD products in the -60 to -80 dB range, I personally cannot hear them, and I have excellent hearing. The headphone amplifier is fully class A and will be even cleaner. What we hear from most K3 owners is how much they enjoy the full-stereo output of the radio, which applies to both speakers and headphones. We provide audio effects unique to the K3, including simulated stereo and left/right phase inversion (AFX MD menu entry), and full control over main/sub RX audio panning (L-MIX-R menu entry). These features can reduce fatigue and create a much richer audio experience. There is a small statistical probability that I'm biassed, so seek other opinions as well :) 73, Wayne N6KR ______________________________________________________________ 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
