Features Local and remote controlled large diaphragm microphone Pressure-gradient transducer with double membrane capsule Five directional characteristics: omni, wide angle cardioid, cardioid, hypercardioid, figure-8 Patented circuitry for remote and local switching of directional characteristics Switchable low frequency roll-off and 10 dB preattenuation Description Product Description The TLM 170 R was the first microphone to use the successful fet 100 technology. Along with a balanced, transformerless output stage it features extremely low self-noise and an impressive dynamic range. Five directional characteristics are selectable by means of a rotary switch. In the sixth position, marked "R", the directional patterns can be controlled remotely with the N 248 power supply. There is no special cable necessary for this purpose. The microphone has at its rear a 10 dB attenuation switch for extremely high sound pressure levels, and a high-pass filter to suppress structure born noise.