The TLM 170 R condenser microphone is a large diaphragm microphone with multiple polar patterns. Its sound has a very transparent characteristic, in contrast to some of Neumann's other microphones that have a distinct personality.As a result, the TLM 170 R is appropriate for many different applications in professional recording studios, broadcasting, film and television, and semiprofessional productions. The polar patterns can be selected either at the microphone itself, or controlled remotely through the special N 248 power supply.Acoustic featuresThe large diaphragm capsule inside the grille has a very smooth frequency response for all polar patterns over a wide acceptance angle. The curves are flat and parallel to the 0 frequency curve up to 10 kHz within an angle of ± 100.The TLM 170 R has a very even diffuse-field response for all polar patterns. This is important in a reverberant environment, as more reflections arrive at the microphone from different directions. The acoustic information is not affected in its tonal quality when recorded by the microphone. This characteristic is achieved without resorting to corrective resonance effects.Therefore, the microphone maintains an excellent impulse response reproducing all transient phenomena of music and speech without any coloration. The capsule is elastically mounted to avoid any structure borne noise that could interfere with its operation.Polar patternsIn addition to the usual directional polar patterns: omnidirectional, cardioid, and figure-8, Neumann has added a hyper-cardioid and wide-angle cardioid characteristic. When compared to the standard cardioid pattern, the hyper-cardioid characteristic suppresses sound from the side more efficiently. The wide-angle pol