Thats funny you say that about the 8900 Duster, there is a guy about 25 miles north of me in NJ, I was talking to him about a week ago, nice clear audio not too basey or trebley, asked what he as using, he had an Optima with the HM-36 Icom mic. I was floored at how good it sounded. I guess the only other guys that sound better are using studio mics, some of the guys talking skip sound like a radio control room