Sennheiser HD 559: https://www.amazon.com/Sennheiser-HD-559-Open-Headphone/dp/B01L1IIEKM Audio-Technica ATH-M40x: https://www.audio-technica.com/en-us/ath-m40x Beyerdynamic DT 770 Pro: https://north-america.beyerdynamic.com/dt-770-pro.html
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