https://drop.com/buy/massdrop-x-beyerdynamic-dt177x-go-headphones I know that any mention of Beyer and Tesla (not the car, but Beyer's motor tech) will elicit groans or painful shrieks from most of the members here, but I assure you guys this is not the case with the DT177X. Someone at Drop worked their magic custom tuning on this one for sure. We shouldn't expect Sennheiser type tuning, but we have here is sort of like Beyer trying to be ZMF! The timbre is definitely Beyer, but the tonal balance voluminous in the lows with dip in the 2-5kHz region, with a slight uptick after that. Nothing close to the DT990-250 in the highs - good grief - in fact far from it. Did I mention that the headphone is gorgeous? I don't think photos do it justice. It's got a nice aluminum cap with the letters DT 177X GO stylishly printed on them. The "Made in Germany" in small print at the bottom is a nice touch! As far as style and layout, it's absolutely perfect. Well, maybe it lacks a final touch, like DROP in big ginormous lettering below the DT 177X GO? I kid, I kid! The DT177X comes with two sets of earpads. A velour and a lambskin. Most of the measurements I will provide will be with the lambskin pads. I will also provide a set of measurements from the Brainwavz XL perforated pads, which may not be to everyone's taste (Zeos likes them and I do). One thing to note is that the velour pads are a bit of pain to install. The trick is to use the notch guide to feed the outside flap of the velour pads into the groove. Be sure to press on the pad to keep it parallel to the baffle. If you are looking at the notch at this angle, then you are probably doing it wrong. Note that the other pads do not require this procedure. The outside flaps can easily be slipped over the lip of the cup. The DT177X uses a four-pin connector. It's understanding that this makes it possible to do a balanced connector. The provided cable is nice. Not skinny and wimpy, but also not outrageously thick and inflexible (I'm looking at you Focal). It feels "pro", and that's a good thing. I can run it over with the wheels on my chair and not be worried they will break. Yet at the same time, they are flexible while being immune to twisting and tangling.