DT-150 is the sonically "refined" version of the DT-100 that i used in studios when i was young... i loved the DT-100 comfort, and its sound was ok for tracking – and for intercom, in live sound and intercom, there simply wasn't a better alternative (and probably there still isn't even today).
DT-150 sounds really "airy", for being a pair of closed headphones, no boominess, no stethoscope, claustrophobic feeling when listening with them.
and they're not artificially flavoured, either – just feed them a string quartet, a chamber orchestra, a glissato on grand piano (miked right), an acoustic jazz trio... you won't get outrageous peaks or dips in their response – which is just what i need when i'm doing electronica and sound experiments on my laptop (a 2021 MacBook Pro on which they sound not just great, but damn loud, too).
acoustic isolation is great, both ways, with the leatherette ear pads effectively shutting external noises off, without even making much pressure on your temples (and i wear quite a substantial size of hats myself).
refreshingly, and reassuringly, you can buy spare parts for these: it shouldn't be such an unusual feature, because how else can anyone call "professional" a piece of gear if you can't maintain or repair yourself? you can with these, because they really are!
i have other pairs of headphones, all sorts, and not one among them priced as cheap as these – so why have i bought them?
where they definitely excel over any other specimen hosted aboard my headphones' ark is: comfort.
the shape of the shells is oblong, vertically, so when housing the ears' pinnae there's no pressure on them – and i can wear them longer than any other pair of headphones without getting itchy, or over-sensitive on points of contact, for hours at length.
cable is really the icing on the cake: it's soft, not sticky, stays put when you coil it, and doesn't make much mechanical noise... i wish other headphones of mine had one this good! what i find great of it, too, is that it's plugged on the right shell: mixing consoles have output plugs on the right, usually, and (unless you play left-handed), on guitar and bass it's the side at which it doesn't get in the way of the fretboard hand.
extra tip for these (hard) times of global warming: if you want them fresher, they easily adapt to a pair of replacement ear pads covered in velour for warm places... they just slightly reduce the isolation from external noise sources, and seemingly have 3 or 4 millimeters less of ear-room, but they can definitely save your summer (and putting them on, or off, only requires a bit of attention, and minimal hand dexterity, no tools).
for colour-proofing purposes, then: be forewarned, their shells aren't really as black as they look on pictures here, rather dark grey (and quite elegant, indeed).
it's kind of a miracle that Beyerdynamic still keeps them alive, they have so many successful models with any latest fashion – i understand why, though: they're different from any other pair of headphones, no doubt, and the absolute price-performance ratio winner of all times.
shall definitely buy another pair to keep in the drawer for safety, if they ever stop making them (and i dearly hope not).
i've tried hard to find some cons, after only pros, and it took me a while – but i did, i succeeded, there is a con: you won't find a headphones carrying bag wide enough to hold them, here or anywhere – and it's because they're so comfortable, the overhead arch is untypically wide.
should have bought them years ago, shouldn't have waited this long – i only couldn't believe they were this good, so cheaply priced!
