The DPA 3532-S is a complete A-B Stereo Kit consisting of two carefully factory-matched omnidirectional Large Diaphragm Microphones Type 4041-S with 130 V solid state preamplifiers in a discrete class A design. Included is also the Hi-Voltage Microphone Amplifier Type HMA5000 and a Stereo Boom all packed with cables in a handy carrying case with a foam insert. The specially selected microphones are matched within 1 dB on both frequency response, sensitivity and self noise. The maximum phase response difference from 50 Hz to 20 kHz is 10°. The frequency response from 10 Hz to 20 kHz with a 4-6 dB soft boost around 8 kHz matches the response of the highly acclaimed Type 4040 Hybrid Microphone. The two 4041-S are powered via the standard HMA5000 Microphone Amplifier, creating the DPA 3532-S A-B stereo microphone system that offers a totally transparent audio path with an exceptionally low noise floor of maximum 7 dB(A) and a SPL handling capability of 144 dB SPL peak. The DPA 3532-S is the ultimate choice for all professional A-B Stereo recordings. The main features of the DPA 3532-S include: Principle of operation: Pressure Cartridge type: 24 mm (1 in) condenser w. stainless steel diaphragm Power supply: 130 V via HMA5000 Frequency range, ± 2 dB: 10 Hz - 20 kHz with 4 - 6 dB soft boost at 8 kHz Directional characteristics: Omnidirectional Equivalent noise level A-weighted: Max. 7 dB(A) re. 20 µPa Equiv. noise level ITU-R BS.468-4: Max. 19 dB Capsule diameter: 24 mm (1 in) Total harmonic distortion (THD): <0.5% up to 120 dB SPL peak, <1% up to 126 dB SPL peak Preamplifier frequency range: 3 Hz to 40 kHz (+0 dB/-1 dB) Output impedance: Matches HMA5000 input Cable drive capability: From microphone to HMA5000: Up to 20 m With HMA5000: Up to 300 m (984 ft) Microphone length: 170 mm (6.69 in) Max. SPL, peak before clipping: 144 dB Weight: 190 g (6.7 oz) Dynamic Range: Typ. 119 dB S/N ratio, re. 1 kHz at 1 Pa (94 dB SPL): 87 dB Connector: 7-pin modified XLR-M (High Voltage) Matching tolerance (frequency response and sensitivity): ±0.5 dB (20 Hz - 20 kHz) Phase deviation for kit: <5°