The new ATH-M50x has the same sound as the previous version, but with a few added features.
Review: Audio-Technica ATH-M50xSTS StreamSet
Audio-Technica ATH-M50x Review
Audio Technica ATH-M50xBT Review: Wires for the Studio, Wireless for the Street
Audio Technica ATH-M50X Review (Closed Headphone)
Audio-Technica ATH-M50x Headphones Review - Videomaker
Audio-Technica ATH-M50xDS Closed-Back Studio Monitoring Headphones - Deep Sea Blue, Limited Edition : Musical Instruments
Audio-Technica ATH-M50x Review
Audio Technica ATH-M50x Review: Still great in 2023
Audio-Technica ATH-M50xBT2 review
Audio Technica ATH-M50X Review (Closed Headphone), Page 6
Audio-Technica ATH-M50xSTS StreamSet — A Mix Real-World Review Mixonline