there have been some threats where the K3 was called a little noisier as an K2 due to K3´s DSP with newest Firmware try "dual BP" and maybe NR (3.1) you will get the same or better soft audio as with an K2 I am very impressed and happy... now waiting for 2nd receiver 73 OE6KYG KX1 244 K2 1331 K3 115