Have several of the Heath kit HS-1661 speaker which tailors the audio to about 200-4000Hz, which is the audio range for voice comms. Makes intelligibility of speech clearer for me, and reduces the storm static over load to my ears ... 73 from Bill / WD8ARZ in N.W. Indiana https://www.radiomuseum.org/r/heath_hs_1661_hs166.html