K 551 - Product support

The newly designed AKG K551 headphones are optimized for a fully immersive listening experience and for comfort. Starting with a 2-inch (50-millimeter) driver on each ear, these reference-class headsets use Real Image Engineering to create a highly realistic sound environment with a true sense of dimensional space. Lightweight, with a comfortable fit, AKG K551 headphones have incredible passive noise reduction and extremely low sound-leakage levels that will keep you living blissfully inside your sound environment for hours on end.

Unit of sale:
Model Number: K551SLV
Colour: Silver-Black



Audio Specifications
DriverClosed-back headphones
Frequency Response12Hz-28kHz
Maximum Input Power200 mW
Input Impedance32 ohms
Sensitivity114 dB SPL/V
Weight305 g
AKG Easy Compare
SoundReference sound
Smartphone controlIphone

Product support

Contact info US

Harman Customer Support

Telephone number

(888) 452-4254

Operating Hours
Mon – Fri: 9:00 a.m. – 11:00 p.m. (ET)
Sat – Sun: 9:00 a.m. – 5:00 p.m. (ET)