Reference Standard Cardioid Microphone. Reference Standard Cardioid Microphone. The 4011A Cardioid Microphone from DPA is designed for capturing vocals, close miking instruments, amplifier cabinets, and other sources in live sound reinforcement and crucial recording applications. It features a cardioid condenser element for minimizing off-axis noise in spot-miking applications and an output stage that provides faithful recreations of the original source material. A switchable 20 dB pad provides added headroom and minimizes distortion while capturing transient signals. Additionally, the microphone allows you to maintain a linear tonal response when closely positioning it near speaker cabinets, percussion, and other instruments. Cardioid pickup pattern provides superb separation between sound sources Equally suitable for close-up work on acoustic guitar, grand piano, overheads, percussion, wind instruments, and vocals Flat on-axis frequency response and maximum phase response 20 dB pad switch in the center of the XLR connector to attenuate the output of the microphone DPA Microphones 4011-A Specs Microphone Operating Principle Pressure Gradient Capsule Condenser Diaphragm 0.75" / 19 mm Polar Pattern Cardioid Performance Frequency Range 20 Hz to 20 kHz Maximum SPL 159 dB SPL Impedance 200 Ohms Load Impedance 2 Kilohms Sensitivity -40 dB Dynamic Range 121 dB Signal-to-Noise Ratio 76 dB A-Weighted Equivalent Noise Level 18 dB A-Weighted25 dB ITU-R 468 THD < 1% CMRR 60 dB Power Operating Voltage 48 V ± 4 V Operating Current Consumption 2.8 mA Physical Operating Temperature -40 to 113°F / -40 to 45°C Operating Humidity 90% Dimensions ø: 0.75 x L: 6.69" / ø: 19 x L: 169.93 mm Weight 5.57 oz / 158 g Packaging Info Package Weight 1.71 lb Box Dimensions (LxWxH) 12.8 x 7.5 x 3.9"