Sonarworks SoundID Reference for Speakers & Headphones with Measurement Microphone EDU (Box); Educational version: requires proof of eligibility; precise adjustment of the frequency response to get flat and neutral sounding monitor speakers or headphones; enables a more precise evaluation of recordings and mixes; room analysis and automated calculation of the room size based on several measurements; Audio Calibration Engine allows for accurate processing; save an unlimited number of calibration profiles for monitor speakers; comes with headphone calibration profiles for more than 280 supported models; target curve custom adjustments in real time; Translation Check simulates over 20 different devices and device types for accurate mix translation results; three filter modes to choose from: Zero Latency, Mixed and Linear Phase allow to optimize filter quality and latency according to the monitoring situation; additional processing controls for Mono, Dry/Wet and Safe Headroom; App only: MIDI mapping for various controls and User Presets for predefined output device/channel pair combinations; measurement microphone with a pre-polarized electret-condenser capsule; frequency response: 20 - 20000 Hz with calibration curve; omnidirectional polar pattern; sensitivity: 14 mV/Pa; self noise: 24 dB; signal to nois ratio: 70 dB; dynamic range: 106dB; maximum sound pressure level: 132 dB SPL; requires: 48V phantom power; connector: 3 pin XLR; Microphone calibration file for 30° off-axis measurements in Sonarworks software native format to be used with SoundID Reference, Microphone calibration file for 0° on-axis measurements in .txt format