The Sennheiser HD 400U headphones are a set of entry-level wired cans offering the German brand’s renowned sound quality in a no-frills package, and at an affordable price. They’re an update to the Sennheiser HD 400S, this time featuring USB-C wired connectivity instead of 3.5mm, making them better equipped for day-to-day use with smartphones.
Now, when I say no frills, I mean it. There’s no wireless connectivity, no ANC, no EQ, and barely even any padding on the headband. What these headphones lack in features, though, they make up for with strong core performance, with a bass-forward sound profile, but respectably well-defined mids and bright treble.
