BNC, 10 Hz to 20 kHz, 30 dB(A) to 135 dB, 50 mV/Pa, Array Acoustic Sensor—The GRAS 40PP-10 provides functionality for production-line testing of drivers, receivers, loudspeakers, acoustic transducers, and microspeakers. This Acoustic Sensor features a frequency range reaching up to 20 kHz as well as a large dynamic range from less than 30 dB(A) to 135 dB. You can use the GRAS 40PP-10 for soundscape recording in array configurations and for multichannel measurements and analysis. Additionally, the GRAS 40PP-10 includes an integrated constant current power (CCP) preamplifier and features a built-in transducer electronic data sheet (TEDS) chip. You can use the TEDS chip to program the GRAS 40PP-10 as a complete unit.