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I have used the Road Devil and gotten good reports, but the D104M6 seems to sound better to most folks (with my voice). Either one should work well.
Further testing with Heil HC5 element in the stock mic (not enough gain), and the Texas Ranger SRA-158 worked well. Out of all of them, the D104M6 seemed to sound the absolute best for me.
Funny thing, the only rig my 2018 Extreme did NOT sound good on was my Lincoln. I was doing a local radio check, and listening to it myself with a friend that has a similar voice (baritone) talking on my Lincoln. It sounded like it wasn't matched up right, and cut out a lot of the lows and mids. A DX listener told me it sounded like it was the wrong impedance. You may have different results, and I was using an adapter from 4 pin to the Lincoln.
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