What is it?Shure’s flagship headphone designed for critical listening and monitoring applications. DetailsThe SRH840 is a closed-back, circumaural headphone designed to rest comfortably over the ears and reduce background noise. The wide, padded headband is said to offer an ergonomic fit for superior comfort over extended periods yet remains collapsible for easy storage and portability. The earpieces are a closed-back circumaural design capable of superior isolation in noisy environments. The SRH840 incorporates 40mm dynamic drivers with neodymium magnet assemblies offering 102dB maximum SPL handling across a 5Hz – 25kHz frequency range and 44 ohm impedance. The headphone is supplied with both a replaceable cable and a replacement set of ear pads for increased lifespan. The 3m coiled cable is fitted with a gold-plated 3.5mm stereo mini-jack together with a ¼” threaded adapter. Overall weight is 318g without the cable.