On Mon,5/2/2016 1:15 PM, Eddy Avila wrote:
My K2 audio output is 4-ohms which I drive into an 8-ohm ICOM speaker with filters. Yes, it works OK, but I would like to match them better.
There is no need to do that. Audio output stages are constant voltage sources -- that means they have a VERY low output impedance, typically a fraction of an Ohm. The impedance rating of a loudspeaker output stage is the MINIMUM impedance that the stage can drive safely. Any higher Z will work fine. A transformer would do three things 1) increase the headroom (max loudness) by about 2.5 dB (there's loss in the xfmr); 2) increase distortion at low audio frequencies (because most audio xfmrs aren't very good; and 3) deplete your bank account.
73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
