Enhance your monitoring with SoundID Reference integrated directly into Universal Audio’s Apollo X Gen 1 and Gen 2 interfaces. This bundle combines SoundID Reference for Headphones and the Apollo Monitor Correction Add-on into a single license key. SoundID Reference for Headphones is a calibration software that delivers consistently accurate studio reference sound on your existing headphones. The software includes presets of more than 500 headphone calibration profiles. With an applied headphone calibration profile the software sets the frequency response target to be completely flat across all audible frequencies. The headphone frequency response target is designed to emulate neutral-sounding speakers. With calibrated headphones, you’ll hear a flat, consistent sound wherever you go. Apollo Monitor Correction allows you to run the headphone calibration directly on Apollo X hardware. Key features of SoundID Reference Ready-to-use headphone calibration for 500+ models 3 filter modes: Zero Latency, Mixed and Linear Phase Additional DSP processing controls: Mono, Dry/Wet and Safe Headroom MIDI mapping in the SoundID Reference app for various controls User Presets in the SoundID Reference app for switching quickly between predefined output device/channel pair combinations What's included Activation key for the SoundID Reference product license: the product can be activated and used on 3 devices Activation key for the Apollo Monitor Correction Add-on product license: the product can be activated and used on 3 devices SoundID Reference standalone app for Headphones (ASIO, WASAPI, APO, HAL) SoundID Reference DAW plugin for Headphones (AU, VST2, VST3, AAX) Averaged profiles for 500+ supported headphone models Apollo Monitor Correction Add-on for integrated functionality with Apollo X devices Prerequisite Requirements Any of the following supported Apollo X audio interfaces: Apollo X Gen 1: Apollo Twin X Duo/Quad, Apollo Twin X USB, Apollo x4, Apollo x6, Apollo x8, Apollo x8p, Apollo x16 Apollo X Gen 2: Apollo Twin X Duo/Quad, Apollo x4, Apollo x6, Apollo x8, Apollo x8p, Apollo x16, Apollo x16D UAD Console app v1.2.1 (or newer) installed, and UAD-2 Software v11.5.1 (or newer) installed