Heil BM-17 Dual Dynamic
The BM-17-Dynamic headset uses the BM-D dynamic element designed specifically for communications use in Ham Radio. This 600 ohm dynamic element will work on most amateur radio rigs requiring a Low-Z input impedance (usually between 150 ohms and 4k ohms). The BM-17-Dynamic has an operating frequency response of 120Hz – 10 kHz.
The speakers used in the BM-17-Dynamic are very sensitive and don’t require much AF gain from the transceiver. The frequency response is 200 Hz – 5 kHz with very low distortion. The ear pads are replaceable acoustic foam.