Paul This is so confusing. First, a hardware change (2 caps) improves bass then along comes a firmware change that does the same thing but only for headphones and line out and then a new DSP board that works with the firmware to do the same thing but still only for headphones and line out and now we're back to the 2 caps that improve headphone, line and speaker audio. No wonder there are so many questions. I wish someone would make this more clear. Steve N4LQ n...@carolina.rr.com ----- Original Message ----- From: "Paul Christensen" <w...@arrl.net> To: <elecraft@mailman.qth.net> Sent: Saturday, October 10, 2009 7:54 PM Subject: Re: [Elecraft] [K3] K3 Rev C DSP with Low Freq Enhancement shipdateinfo; New swap out option on parts order page. CORRECTION
>> Why was the improvement not applied to all audio outputs, or am I missing >> something here? > > When you go through the schematic and run the response calculations, those > were the only changes necessary to improve low-end response for all Rx and > Tx paths. > > Take a look at what's happening before the ADC and after the DAC circuits. > The K3 has some of the best designed audio circuits for a communications > transceiver. > > Paul, W9AC > > ______________________________________________________________ > 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 ______________________________________________________________ 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
