AKG Acoustics GmbH

K 121 Studio

  • Semi-open design
  • Supraaural
  • Self-adjusting headband

The AKG K 121 Studio are entry level professional headphones for various applications, as Project Studios and Home Recording.

These semi-open, supraaural headphones are a true allround performer. The AKG self-adjusting headband ensures good comfort.

The K 121 Studio are equipped with a 3.5/6.3 mm stereo adapter and is designed for ambitious and rugged use. The leatherette ear pads are easy to clean.

The K 121 Studio are designed and engineered in Austria.

© 2012 AKG Acoustics GmbH


Typesemi-open, dynamic headphones, supraaural
Efficiency101 dB SPL/V
Frequency range18 to 22,500 Hz
Rated impedance55 ohms
Max. input power200 mW
Cable3 m, (10 ft.)
Adapter3,5/6,3 mm, (1/8” to 1/4")
FinishBlack/Gold
Net weight (without cable)220 g (7.7 oz)
Shipping weight555 g (1.22 lbs.)
Patent(s)Varimotion – multiple-thickness diaphragm for dynamic transducer (Patent no. AT 403.751, US 6,185,809, EP 814.637 (DE, DK, FI, FR, GB, IT, NL), JP 3.927.651); Acoustics slot resistor for dynamic transducer (Patent no. AT 408.706, US 6,639,991, ZL 01116806)