Audio-Technica ATH M50X, M40x, M30x, M20x M Series Headphone Review Demo Comparison - YouTube
Amazon.com: Audio-Technica ATH-M50X Professional Studio Monitor Headphones, Black, Professional Grade, Critically Acclaimed, with Detachable Cable : Audio-Technica: Musical Instruments
Audio Technica ATH-M50 Frequency Response and CSD Waterfall Plots