1/2'', IEPE power supply, BNC port CRY507 IEPE Preamplifier is powered by constant current source and featured by high input impedance, low noise floor, and a wide frequency response range. It can be used with CRY300 series 1/2'' pre-polarization measurement microphones and is also compatible with other brands of measurement microphones, such as B&K and G.R.A.S. The output interface uses a BNC plug, which can be easily connected to the input terminal of a general instrument. This product is made of stainless steel, which gives it good toughness and makes it suitable for long-term storage. It is applicable to electroacoustic testers, multi-channel analyzers and the like. Technique Specification Specification CRY507 Preamplifier Frequency Response range Input impedance Output impedance Max. output voltage Power Supply Mode 1 >5.0 Vrms (+24 V available) IEPE (2 mA - 10 mA) Noise (A-weighted) Noise, linear (20 - 20 kHz) Gain Port type Applicable temperature range Thread interface Add：NO.31-1, Xianxing Rd, Yuhang Dist, Hangzhou, CN