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  • AKG K551SLV Closed-Back Reference-Class Headset with In-Line Microphone and Passive Noise Reduction, Black/Silver
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AKG K551SLV Closed-Back Reference-Class Headset with In-Line Microphone and Passive Noise Reduction, Black/Silver

by AKG
| 3 answered questions

List Price: $379.95
Price: $199.00 & FREE Shipping. Details
You Save: $180.95 (48%)
Only 3 left in stock.
Silver
  • Powerful, 2-inch (50-millimeter) drivers deliver sound that's undistorted no matter how high you turn up the volume
  • Real Image Engineering produces a huge soundstage and accurate sound quality
  • The closed-back design helps prevent outside noise from entering your ears while also preventing the sounds you're listening to from leaking out
  • The in-line microphone lets you make calls that are every bit as crisp and noise-free as the music you listen to on your smartphone
  • The 2D fold-flat mechanism makes storing and transporting your headphones simple and worry-free
10 new from $199.00 3 used from $183.22 1 refurbished from $259.99

Frequently Bought Together

AKG K551SLV Closed-Back Reference-Class Headset with In-Line Microphone and Passive Noise Reduction, Black/Silver + CASEBUDi Headphone Case - Extra Large - XL + FiiO E6 Fujiyama Portable Headphone Amplifier - Black
Price for all three: $251.98

Buy the selected items together


Special Offers and Product Promotions

Color: Silver
  • Amazon Free 30-Day Tech Support: This item is eligible for free tech support for 30 days from the date of delivery. Over the phone, our trained technicians can help you set up, configure, connect, and troubleshoot so you can start enjoying your new purchase. Owners of qualifying products can reach Tech Support by calling 1-800-362-5703. Learn more

  • Six-Month Financing: For a limited time, purchase $149 or more using the Amazon.com Store Card and pay no interest for 6 months on your entire order if paid in full in 6 months. Interest will be charged to your account from the purchase date if the promotional balance is not paid in full within 6 months. Minimum monthly payments required. Subject to credit approval. 1-Click and phone orders do not apply. See complete details and restrictions.


Technical Details

Color: Silver
  • Microphone-Feature

Product Details

Color: Silver
  • Product Dimensions: 5.6 x 9.4 x 9.8 inches ; 2.5 pounds
  • Shipping Weight: 3 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B009KOTNA0
  • Item model number: K551SLV
  • Average Customer Review: 4.0 out of 5 stars  See all reviews (21 customer reviews)
  • Date first available at Amazon.com: October 2, 2012

Product Description

Color: Silver

From the Manufacturer

AKG K551 (Black/Silver)

Reference-class over-ear headphones with 1-31/32" (50mm) drivers, Real Image Engineering and in-line microphone.

AKG engineers have optimized the AKG K551 headphones for a fully immersive listening experience. Starting with a 1-31/32-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 three-dimensional space. Stylish and portable, the AKG K551 lets you take AKG studio-quality sound with you go wherever you go. And an in-line microphone lets you take calls from your iPhone. The lightweight, comfortable AKG K551 also has impressive passive noise reduction and extremely low sound-leakage levels. So you can stay blissfully inside your sound environment for hours on end.

AKG K551 Black/Silver at a glance:

  • Famous AKG sound quality
  • 1-31/32" (50mm) drivers
  • Real Image Engineering
  • Outstanding passive noise reduction
  • Closed-back design
  • In-line microphone and remote control
  • Classic-meets-contemporary design
  • 2D-axis fold-flat mechanism

Key Features

Famous AKG sound quality

For over 65 years, AKG Acoustics has been the leader in creating studio sound in headphones. We hold over 1,400 patents for our groundbreaking products, plus two technical GRAMMY Awards (in 2010 and 2005) for sound innovation.

1-31/32" (50mm) drivers

Powerful 1-31/32-inch (50-millimeter) drivers enable AKG K551 reference-class headphones to do things that other headphones can only imagine. Music is rich and layered, while sound environments seemingly unfold before you no matter how loud you turn up the volume.

Real Image Engineering

Real Image Engineering is the science that fits an actual soundstage inside the space between your ears and the AKG K551 headphones. With Real Image Engineering, sounds are huge and accurate, with an incredibly realistic sense of width, distance and depth.

Outstanding passive noise reduction

Traffic is loud. Subways are loud. Other people’s phone calls are loud – and annoying. But you may never know it, because AKG K551 headphones offer effective sound insulation. Premium foam ear pads wrapped in soft leather help create an acoustic seal, so all you hear is the music you love.

Closed-back design

The AKG K551 reference-class headset keeps music in and noise out. Its closed-back design helps prevent outside noise from entering your ears and minimizes sound leakage. So your music is yours and yours alone to enjoy anywhere you go.

In-line microphone and remote control

AKG K551 headphones have an in-line microphone so that you can make calls that are every bit as crisp and noise-free as the music you listen to on your iPhone. The mic is ideal for FaceTime and Skype applications, and virtually any app requiring a microphone. The headphones’ three-button remote lets you control the playback functions and volume from iPhone and iPad devices, as well as Apple laptops and desktop computers.

Classic-meets-contemporary design

Great music doesn’t go out of style, and neither will the AKG K551. These reference-class headphones are sleek and sophisticated, with a commanding yet minimalist design that is available in either white or black and silver.

2D-axis fold-flat mechanism

Though you may never want to, you will take your AKG K551 headphones off at some point. When you do, the AKG K551 folds flat for simple, worry-free storing and transporting. High-quality, metal-alloy material keeps the folding mechanism strong and durable.


General Specifications

AKG K551 (Black/Silver)    
System Dynamic
Design Closed-back
Color Black/silver with silver cable
Frequency range 12Hz – 28kHz
Sensitivity 114dB SPL/V
Input impedance 32 ohms
Maximum input power 200mW
Net weight (without cable) 10.76 oz (305g)
Cable 99.99% oxygen-free cable, 4' (1.2m)
Main connection 1/8" (3.5mm) stereo mini-jack plug


What's In The Box

  • 1 set of Black/Silver AKG K551 reference-class headphones
  • 1 3' 11-1/4" (1.2m) cable


    Dimensional, spacious audio for on-the-go lifestyles.

    In the world of pro audio, AKG microphones and headsets have been synonymous with excellence for several decades.

    Around the world recording studios, radio and TV stations, opera houses and famous stages count on AKG products. Internationally known musicians and show-stars have frequently been seen using our high-quality microphones and headphones for many decades. Today AKG is one of the leading manufacturers of high-quality microphones, headphones and wireless-equipment.



Product Description

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.

Customer Questions & Answers

Customer Reviews

The sound stage if full and bass is great.
Keith Homan
If you are looking for some great headphones, it will be tough to beat these.
Robert Moore
The build quality is excellent and very comfortable.
Yorgo

Most Helpful Customer Reviews

13 of 13 people found the following review helpful By Robert Moore HALL OF FAMETOP 500 REVIEWERVINE VOICE on September 26, 2013
Color Name: Silver Vine Customer Review of Free Product ( What's this? )
These are far and away the clearest headphones I have ever listened to in my life, and I have listened to many. It is absolutely inconceivable to me that anyone could give these less than five stars and then complain that they are limited to that. I think the low reviews some others have given these headphone depend more on confusing the limitations of other headphones with virtues. In our shared western culture we have a decided preference for LOUD and a very strong bass with high quality. Many headphones depend on distortion for giving he illusion of a strong bass. These do not. The engineers strove instead for a pair of reference class headphones, and in this they were successful. Almost any song you care to listen to will be clearer with more detail than you have ever heard it before. Almost every song I listened to almost sounded completely new.

But these are not power headphones and if you confuse oomph! to the gut with quality you may not like these. The headset has large magnets in the speakers but this is to provide clarity, not to strip your ears of cartilage.

I do think that there is a legitimate complaint with power. There is a way to make the sound a bit more amplified without reducing the detail and delicacy of the sound. How? An external amplifier. This is easy at home if you have a home stereo system. Just crank the power a bit. But if you are walking about you should probably resort to a headphone amp. It can make a dramatic difference both in increasing the overall volume while boosting the bass by a great deal. I would recommend the FiiO E12 Mont Blanc Portable Headphone Amplifier. These two products combined produce a powerful sound with extraordinary detail and clarity. If you are looking for some great headphones, it will be tough to beat these.
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9 of 9 people found the following review helpful By Yorgo on March 1, 2013
Color Name: Silver
I primarily listen to lots of jazz, classical and some pop, and the K551s let me hear incredible details in music I never noticed with my previous Sony MDR-7506 over-the-ear headphones. The bass on the K55 is deep and and tight, not boomy like the Sony and the mid-range and top-end are amazing; it's also very open with a suoerb soundstage. The build quality is excellent and very comfortable. I listen a lot at night and sometimes fall asleep with them on...forgetting they're there :)

If these are within or close to your budget, I highly recommend them. They're truly state-of-the-art in every respect. Love 'em!!!
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7 of 7 people found the following review helpful By Wontack Song on November 11, 2013
Color Name: Silver Verified Purchase
This is a great headphone for sure. Its performance has been tested in Golden Ears already, so I don't think there needs to be a separate discussion for it.
However, I do not recommend this headphone for users, who love bass and exciting (even if the sound is faked) sound. K551 gives you FLAT sound, the original sound the music provides.
This can be boring to some users. I found its sound boring, so decided to return it. Nonetheless, it is truly a great reference closed headphone...
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6 of 6 people found the following review helpful By L. Cooper on February 6, 2014
Color Name: Silver Verified Purchase
If you do a review search of these cans online, and use the authentic sites where audio professionals who use and review gear for a living discuss equipment, you'll discover that these cans get 4.5 or 5 stars 98% of the time.
Look, AKG designs their top end cans with a definite similar sound. And this sound is clinical, analytical, and transparent and detailed.....AKG "audiophile" phones, just like Beyerdynamics "audiophile" phones are created to let serious music lovers look deep inside the music and see the parts as if using a sonic microscope.... This is the intent of AKG higher end "audiophile phones, and that is the intent of THESE 551 phones, so, if you dont understand this, and are not familiar with what "audiophile" is all about, then you wont understand AKG or like many of their best sounding headphones.
An Audiophile is a person who wants to hear their gear and also hear the music.
They want to experience the forest but not at the expense of not being able to look at all the trees.
They want both., and are not so interested in "does the bass response kick my eyeballs around", or, "these dont sound so good with RAP music or metal".
Follow me?
So, if you are looking to listen and not just listening to feel the beat, then the AKG products, the high end AKG product and the Beyer high end, and to a slightly lesser degree the Sennheiser high end, will let you look deep inside the music and allow you see what you are hearing....And if this is not what you are using headphones to do...which is., to look at the parts of the music you are hearing, then an Audiophile headphone like the K551 is going to be a big fat modestly expensive disappointment for you.
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6 of 6 people found the following review helpful By Ryan D on March 11, 2014
Color Name: Silver Verified Purchase
I'm convinced the audio world has gone crazy. I've become a headphone connoisseur--or obsessive--and I've owned headphones from Bose, Beats, Audio Technica, Sennheiser, V-Moda, B&W, and PSB. No matter how they are hyped, I almost always notice a sound that veers heavily toward bass and a veiled "warmth". Either everyone is trying to copy Beats or they just assume everyone is listening to mp3's so why not create a sound that will camouflage the poor source quality?

Enter AKG. They design headphones with seemingly no effort to artificially add bass or warmth but instead strive to create transparent, clear sound.

And everyone bashes them for it.

I have read endless complaints about how "bright" they are and "lacking in bass". These things just sound accurate and realistic. I think people have almost forgotten what that sounds like and--in the bizzzarro world we live in--AKG's true to life sound is what people's ears perceive as "weird". It's like The Matrix! But.....different.

I say forget it. These sound drop dead amazing and all the others sound dull and lifeless (to me) by comparison.

Just don't listen to mp3's with these babies. That might hurt. I listen to CD's ripped as WAV files on my iPod and I couldn't be happier.
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