User manual AKG C 3000 B

[. . . ] This large-diaphragm condenser microphone has been designed on the basis of experience AKG and its customers have gained worldwide over the last decades using models such as the C 12 and C 414B. The C 3000B uses advanced, reliable components to meet the highest professional demands and withstand even long-time, tough handling in the studio and on stage. [. . . ] Also, you can eliminate the proximity effect (occurring at working distances of less than 4 inches) inherent in unidirectional microphones by switching the bass cut filter in. the filter has a 6 dB/octave slope starting at 500 Hz. The all-metal die-cast body shields the microphone very effectively against RF interference when using it near radio transmitters or together with wireless microphones or other communication systems and protects the microphone from the hardships of live use. A safety flange on the connector shaft prevents the microphone from falling out of the spider suspension or stand adapter even when mounted upside down. With its high SPL capability, minimum distortion, and resistance to extreme temperatures and high humidity, the C 3000B is a truly universal microphone. Although the microphone capsule is shock mounted internally, you can use the supplied H 100 "spider" suspension to reduce vibrational noise from the stand or other sources even further. Remember to insert the cable into one of the two grooves at the rear end of the outer ring for strain relief. This removes mechanical pull from the connector and reduces vibrational noise that may be transmitted to the microphone by the cable. The C 3000B operates on any phantom power source to DIN 45 596 / IEC 268-15. This standard specifies a positive voltage of 12, 24, or 48 VDC on the two audio lines referenced to the cable shield. [. . . ] Type: Polar patterns: Sensitivity at 1000 Hz: Frequency range: 1-inch large-diaphragm pressure gradient microphone cardioid 25 mV/Pa -32 dBV ±2 dB 20 to 20, 000 Hz (refer to frequency response curve) 200 ohms 1000 ohms 6 dB/octave below 500 Hz -10 dB, switchable Electrical impedance: Recommended load impedance: Bass cut filter slope: Preattenuation pad: Equivalent noise level to DIN 45 405 (CCIR 468-2): 25 dB Equivalent noise level to DIN 45 412 (A-weighted): 14 dB-A Signal/noise ratio re 1 Pa (A-weighted): 80 dB*) Max. Specifications subject to change without notice. [. . . ]