Beyerdynamic DT 770 M

The DT770 headphone has long reigned as one of the kings of the sealed-earcup headphone category so beyerdynamic wisely offers several different DT770 models. The DT770-M edition has an 80-ohm impedance rating making it better suited for use with weak-amped portable audio souces like iPods, Mp3 players, & laptop/PCs versus its more power-hungry 250-ohm "audiophile oriented" sister models. However, we still feel the DT770M remains much better served by the clean drive and improved sonic clarity and timbral control offered by any dedicated head-amp. Beyerdynamic states the DT770M is specially well-engineered for drummers/bassists and for FOH close-monitoring applications on stage and in the studio so some listeners feel its signature to be bass-driven with upper treble roll-off in spots. We feel the 770M can be succesfully employed in a variety of reference audio settings where an efficient sealed-back headphone capable of true extension deep into the bass bracket is required. The claimed minus -35dB of ambient noise attenuation is likely a bit optimistic in real world settings; expect somewhere around -15dB to -18dB, still very respectable ambient noise blocking ability for any headphone. Interestingly, beyer claims the weight of the diaphragm and moving coil elements of the DT770M is approximately only 20% compared to other similar headphone designs; that might prove to be a useful factor in alleviating premature listening fatigue during extra-long recording sessions or while performing intensely analytical audio work. Although ultimately not as truly clear throughout the entire sonic spectrum as the no-volume-control DT770 model -- perhaps due to the resistor value of the cable slider mechanism -- the DT770M delivers excellent resolution given its closed-back earcup and provides solid timbral detail well-suited for its particular application.

The basic black-matte color cosmetics of DT770M also differ noticeably from the slicker grey-silver looks of the 250-ohm 'audiophile' DT770 edition. The DT770M black earpads are the large-size circumaural type that fully surround the ear and they're well-padded with an extra-soft pleather material. The clamping force of the headband is quite securely snug to aid in noise-blocking but its not overly tight -- you should still be able to hear at least some of what's happening around you. The DT770-M headphone is hard-wired with a straight 9ft cord that exits from the left earcup and which contains a built-in slider control handy for quick volume adjustments on the fly. The cable is terminated to a gold-plated 1/8" [3.5mm] mini-plug and a larger full-size adapter is conveniently provided in the package. A 2-year manufacturer's product warranty is standard with all beyerdynamic headphones.

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