Yamaha HPH-MT5 closed-back monitoring headphonesIntroducing the Yamaha HPH MT5 closed back monitoring headphones From the NS 10M to the MSP and HS Series, Yamaha has remained faithful to a design philosophy focused on delivering the sonic accuracy that provides sound professionals with the perfect platform upon which to develop and establish their own signature sound. MT Series studio monitor headphones remain true to this fundamental concept, delivering precision sound reproduction that meets the