The new ATH-M50x has the same sound as the previous version, but with a few added features.
Audio Technica ATH-M50x Review: Still great in 2023
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Audio-Technica ATH-M50x Closed-back Studio Monitoring Headphones - Icy Blue, Limited Edition Reviews
Wireless, on-the-go design delivers the same critically acclaimed sonic performance as the original ATH-M50x professional studio headphones
Audio-Technica ATH-M50xBT2DS Wireless Headphone, Deep Sea
Audio-Technica ATH-M50xBT2 Bluetooth Closed-back Studio Monitoring Headphones Reviews
Audio-Technica ATH-M50X review: A durable standard - SoundGuys
Revisiting a Classic: Audio-Technica ATH-M50x Review – “Lantern Glow” Limited Edition - Major HiFi
Audio-Technica ATH M50 User Review (Anniversary Edition) (Updated) – Rahul Samuel
Audio-Technica ATH-M50x Review