Both headphones are open-back studio models "Made in Germany," but they differ significantly in driver technology, sound tuning, and included accessories.
The DT 990 PRO X uses the STELLAR.45 driver with 48 ohms and delivers a spatial sound with emphasized highs – ideal for critical listening and editing. The DT 1990 PRO MKII features the advanced TESLA.45 technology with 30 ohms, offering even greater detail resolution, improved dynamics, and excellent spatial imaging – designed for demanding mixing, mastering, and editing tasks.
The DT 990 PRO X comes with a detachable 3-meter cable (mini-XLR), velour ear pads, and a soft carrying pouch. The DT 1990 PRO MKII includes two sets of ear pads (producing velour with bass boost and mixing/mastering velour with an analytical sound profile), a straight 3-meter cable, a 5-meter coiled cable, and a robust hard case.