AKG K551 User Manual

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.
Sound
• 2" (50mm) driver
• Real Image Engineering for open sound
• Outstanding passive noise reduction
deSign
• 2D-Axis fold-at mechanism for easy storage
• Closed-back design
• In-line microphone and remote for iOS
®
devices
• Two available colors: Black/silver with silver cable,
White/silver with blue cable
K551
Closed-baCk, referenCe-Class headset, with in-line miCrophone and passive noise reduCtion
Live inside your music.
Finishes:

AKG K551 Specifications

Audio Specifications

frequency range	12Hz – 28kHz
sensitivity	114dB SPL/V
input impedance	32 ohms
maximum input power	200mW

Connectivity

main connection	1/8" (3.5mm) stereo mini-jack plug
cable type	99.99% oxygen-free cable

Weight and Dimensions

net weight (without cable)	10.76 oz (305g)
cable length	4' (1.2m)

Summary

AKG K551 Headphones Introduction

Product Description and Comfort

Optimized for immersive listening and comfort with 2-inch drivers, Real Image Engineering, and passive noise reduction.

Sound Features

Highlights include a 2" (50mm) driver, Real Image Engineering for open sound, and outstanding passive noise reduction.

Design Features

Features a 2D-Axis fold-flat mechanism, closed-back design, and in-line microphone for iOS devices.

Key Features of AKG K551

Famous AKG Sound Quality

AKG's 65-year leadership in studio sound, 1,400 patents, and 2010 GRAMMY Award for technical achievement.

2-inch (50mm) Driver

Powerful 2-inch driver delivering rich, layered music and undistorted audio at high volumes.

Real Image Engineering

Science fitting large soundstages into headphones for huge, accurate sounds with realistic width, distance, and depth.

Low Sound-Leakage Levels

Optimized for minimal sound leakage, ensuring private listening anywhere.

Outstanding Passive Noise Reduction

Effective sound insulation blocks external noise, allowing focus on intended audio.

Closed-Back Design

Keeps music in and noise out, preventing sound leakage and outside noise entry.

In-Line Microphone

Enables crisp, noise-free calls on smartphones.

New Design

Sleek, sophisticated, commanding yet minimalist design available in white or black and silver.

2D-Axis Fold-Flat Mechanism

Allows simple and worry-free storage and transportation of headphones.

AKG K551 Specifications

Key Specifications Details

Technical details including System (Dynamic), Design (Closed-back), Color options, Frequency range, Sensitivity, Impedance, Power, Weight, Cable, and Main connection.