Audeze LCD-X: https://www.headphones.com/products/audeze-lcd-x-high-performance-open-back-over-ear-reference-planar-magnetic-headphones-lambskin-leather?_pos=2&_sid=a7a1ed1bf&_ss=r Audeze LCD-XC: https://www.headphones.com/products/audeze-lcd-xc-creators-edition?_pos=1&_sid=97d021241&_ss=r Audeze LCD-X Frequency Response & EQ Profiles: https://forum.headphones.com/t/audeze-lcd-x-open-back-planar-headphone-official-thread/2819/188?u=resolve Audeze LCD-XC Frequency Response & EQ Profiles: https://forum.headphones.com/t/audeze-lcd-xc-over-ear-planar-magnetic-headphones-official-thread/921/62?u=resolve LCD-X and XC Serial Number Reference: https://www.head-fi.org/threads/lcd-x-and-xc-update.956949/post-16267132 How to read frequency response: https://www.youtube.com/watch?v=nR2AhYqFI_8 Become an expert on headphones: https://www.headphones.com/pages/research Learn about headphone measurements and frequency response: https://www.headphones.com/pages/measurements-and-frequency-response How frequency response impacts sound signature: https://www.headphones.com/pages/how-frequency-response-impacts-sound-signature Podcast: https://theheadphoneshow.fireside.fm/ Twitter: https://twitter.com/headph1show Twitter: https://twitter.com/ResolveReviews Source equipment Amp - SPL Phonitor X: https://www.headphones.com/products/spl-phonitor-x-headphone-amplifier?variant=376861360149 Amp - Cayin IHA-6: https://www.headphones.com/products/cayin-iha-6?_pos=1&_sid=41be6560e&_ss=r Amp - Schiit Magni Heresy: https://www.schiit.com/products Amp - Drop THX AAA One: https://drop.com/buy/drop-thx-aaa-one-linear-amplifier Amp - Ampsandsound Kenzie OG: https://ampsandsound.com/products/kenzie-headphone-amp DAC - Soncoz LA-QXD1: https://hifigo.com/products/soncoz-la-qxd1-dac-fully-balanced-digital-audio-converters-with-xlr DAP - iBasso DX220: https://www.headphones.com/products/ibasso-dx220-digital-audio-player?_pos=1&_sid=24e0cbb9e&_ss=r DAC - Matrix Audio X-Sabre Pro: https://www.headphones.com/products/matrix-audio-x-sabre-pro-mqa?_pos=2&_sid=7f62f5062&_ss=r Headphone Recommendations: Entry level AKG K371: https://www.akg.com/Headphones/Professional%20Headphones/K371-.html Sennheiser HD 560S: https://www.headphones.com/products/sennheiser-hd-560s?_pos=1&_sid=6cc96eeef&_ss=r Sennheiser HD6XX: https://drop.com/buy/massdrop-sennheiser-hd6xx Midrange HiFiMAN Sundara: https://www.headphones.com/products/hifiman-sundara?_pos=1&_sid=0fc673fa4&_ss=r Focal Elex: https://drop.com/buy/massdrop-x-focal-elex-headphones High End Audeze LCD-2 (with EQ): https://www.headphones.com/products/audeze-lcd-2-high-performance-planar-magnetic-headphone-lambskin-leather?_pos=10&_sid=20f563872&_ss=r Audeze LCD-X and XC: https://www.headphones.com/products/audeze-lcd-x-high-performance-open-back-over-ear-reference-planar-magnetic-headphones-lambskin-leather?_pos=2&_sid=cc81c5eff&_ss=r Focal Clear: https://www.headphones.com/products/focal-clear-over-ear-open-back-headphones?_pos=1&_sid=c89ce8927&_ss=r HiFiMAN Arya: https://www.headphones.com/products/hifiman-arya?_pos=1&_sid=7c7f2eb6f&_ss=r Sennheiser HD 800S: https://www.headphones.com/products/sennheiser-hd-800-s-dynamic-open-back-stereo-headphones?_pos=1&_sid=eeaa647ba&_ss=r ZMF Auteur: https://shop.zmfheadphones.com/collections/stock-headphones/products/zmf-auteur HEDDphone (heavy): https://www.headphones.com/products/heddphone?_pos=1&_sid=14b0214ae&_ss=r Very high end Rosson Audio RAD-0: https://www.headphones.com/products/rosson-audio-design-rad-0?_pos=1&_sid=fc9369c25&_ss=r ZMF Verite Closed: https://shop.zmfheadphones.com/collections/stock-headphones/products/verite-closed Summit Focal Utopia: https://www.headphones.com/products/focal-utopia-open-back-over-ear-headphones?_pos=1&_sid=0135214bf&_ss=r HiFiMAN Susvara: https://www.headphones.com/products/hifiman-susvara?_pos=1&_sid=19a60f986&_ss=r IEM Recommendations: Moondrop Blessing 2: https://www.headphones.com/products/moondrop-blessing-2?_pos=1&_sid=7c10af5e6&_ss=r Moondrop Blessing 2 Dusk: https://shenzhenaudio.com/products/moondrop-x-crinacle-blessing2-dusk-1dd-4ba-in-ear-monitor-earphone DUNU SA6: https://www.headphones.com/products/dunu-sa6?_pos=1&_sid=ecf8336e1&_ss=r Thieaudio Monarch: https://www.headphones.com/products/thieaudio-monarch?_pos=1&_sid=fb8afd0bf&_ss=r Campfire Andromeda 2020: https://www.headphones.com/products/campfire-audio-andromeda-in-ear-headphones?_pos=1&_sid=f0d446275&_ss=r 64 Audio U12t: https://www.headphones.com/products/64-audio-u12t-universal-fit-earphone?_pos=1&_sid=bfdb9b1c2&_ss=r Empire Ears Odin: https://www.headphones.com/products/empire-ears-odin?_pos=1&_sid=d8794acd1&_ss=r 00:00 - Intro 00:43 - Source Considerations 01:15 - Design Changes 04:28 - Sound: Objective, LCD-X 09:00 - Sound: Objective, LCD-XC 13:11 - Sound: Tuning Summary 14:24 - Sound: Technical 16:46 - A Note About Revisions In General 19:14 - Conclusion