Hello I ordered a Bose QC25 headphone and would also order the ModMic to complete a nice headset for SSB contest operation with my Elecraft K3. Do I order the ModMic 4 or 5? How can I setup my K3 equilizer for optimal and sharp contest/DX audio? Tnx for your suggestions, 73 Laurens PD9X https://www.qrz.com/db/pd9x