THE VERDICT
Beyerdynamic reboots and refines their flagship T1—and significantly improves its sound quality.

The Beyerdynamic T1 (2nd Generation) over-the-ear headphone may look nearly identical to the original T1 that debuted in 2009, but trust me on this: The two headphones sound very different. The first thing I noticed is that the new T1 has meatier, bigger, punchier bass, and the treble is sweeter, clearer, and more refined. It’s much more than a reboot.

To discover why, I rang Beyerdynamic’s Klaus Hanselmann to get the back story. He told me the T1’s 45mm Tesla driver is much the same but now features a tiny plug that controls high-frequency resonance. The earcups sport an all-new aluminum driver housing and baffle. The acoustic damping material behind the drivers is also new. The ear pads now have memory foam, and they are covered with synthetic fibers that wick sweat away from your ears, so the T1 feels cooler in the summer.
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https://www.soundandvision.com/content/beyerdynamic-t1-headphone-review#hPuJIo8Y7swSBevt.97