The microphone to the right is the model SM-1 and was introduced for the S-Line. This is a high impedance dynamic unit with a frequency response of 100 to 3500 Hz.

The unit pictured to the right is the MM-1 mobile microphone (OEM from Turner). These units were built like tanks. This is a dynamic microphone with a response range of 200-10.000 Hz. and had a output level of minus 48db.

Microphones sell from $200-$400 in the Collins Collectors market (08/00).