Is the DT 1990 Pro MKII easy to drive without an amp?

Yes. At 30 ohms it plays loudly from laptops, phones and small audio interfaces. A dedicated amp still helps with headroom and control at high volume.

How does it differ from the original DT 1990 Pro?

The MKII drops impedance from 250 to 30 ohms, making it far easier to drive, and updates the driver tuning. The open-back design, build and velour pads carry over.

Does it block outside noise?

No. It is open-back, so it leaks sound and lets room noise in. It suits a quiet desk, not commuting or loud shared spaces.

Can I use it for gaming and calls?

It works for gaming thanks to its soundstage, but it has no microphone and no wireless. For calls you need a separate mic or a headset.

What connector does the cable use?

The stock cable locks into the cup with an XLR connector and ends in a quarter-inch plug. You need an adapter or a different cable for 3.5 mm sources.