Sennheiser MK4 Large Diaphragm Condenser Microphone Sennheiser MK 4 Studio Condenser Microphone - Large-diaphragm studio microphone with a 1" true condenser capsule, based on Sennheiser's e965 high-end vocal mic. Sennheiser MK4 is perfect for home and professional studios. Made in Germany the transducer is manufactured in the same clean room as all high-end Sennheiser and Neumann condenser capsules. Specifications: Large-diaphragm capsule (1”) in true condenser design 24-carat gold-plated diaphragm Full metal housing Capsule shock-mounted internally to minimise structure-borne noise Designed for project studios and stage use Low inherent self-noise and high maximum SPL Made in Germany Transducer principle: externally polarised condenser microphone Diameter of diaphragm: 25.4 mm / 1” Pick-up pattern: cardioid Frequency response: 20 Hz – 20 kHz Sensitivity: 25 mV/Pa Max SPL: 140 dB Equivalent noise level: 10 dB (A) / 20 dB (CCIR) Dynamic range: 130 dB Power supply: 48 V phantom powering (P48) Current consumption: 3.1 mA Max. diameter of microphone body: 57 mm Length:160 mm Weight: 485 g