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alaTest has collected and analyzed 36 reviews of AKG K 391NC. The average rating for this product is 3.4/5, compared to an average rating of 4.0/5 for other Headphones for all reviews. Reviewers are impressed by the design and size. The comfort and price are also mentioned favorably. There are some mixed views about the bass quality and noise isolation, while there are some negative opinions about the portability.

sound, price, comfort, size, design


We analyzed user and expert ratings, product age and more factors. Compared to other Headphones the AKG K 391NC is awarded an overall alaScore™ of 85/100 = Very good quality.

Review analysis

(Based on 36 reviews)

Expert Reviews  

User Reviews  

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Showing 1 - 13 of 13 Show Reviews: in English | in other languages (22)

Consumer review by: ( review summary for AKG K 391NC


alaTest has collected and analyzed 9 user reviews of AKG K 391NC from The average user rating for this product is 3.0/5, compared to an average user rating of 4.0/5 for other Headphones on Reviewers really like the size and price. The comfort and sound also get good views, whereas there are some critical views about the noise isolation.

sound, comfort, price, size

noise isolation

44% of the reviews on give this product a positive rating.

This summary is based on the products: AKG K391 NC High-Performance Active Noise-Cancelling In-Ear Headphones with Microphone - Silver6 Small (S) Black Soft Triple Flange Replacement Eartips Earbuds Set for AKG by Harman: K324P, K321, K328, K330, K340, K350, K374, K375, K390, K391 NC

Feb, 2016

Expert review by: Tim Gideon (



The AKG K391 NC is a powerful pair of noise canceling in-canal earphones with enough upsides to compensate for its merely average noise cancellation.

Powerful bass response and distortion-free, crisp sound signature. Outputs audio in both passive and powered modes. Charges via USB rather than inconvenient disposable batteries. Inline remote control and microphone for mobile devices

Noise cancellation isn't class-leading. The inline compartment will be an annoyance for some. Bass-boosted sound signature not for purists

While the audio world is littered with on-ear and around-the-ear noise-canceling headphone pairs, earphones with active noise cancellation circuitry remain a fairly rare beast. For years, the size of the circuitry and battery compartments made in-ear...

Jul, 2013

Expert review by: (

AKG K391 NC In-Ear Headphones Review


Up until this point, noise-canceling headphones were all a bunch of poorly designed pieces of cheap plastics costing a lot more that you've bargained for. Recent outings namely from Harman Kardon, changed all that with an attentive touch for good...

Jun, 2013

Expert review by: Jeremy Horwitz (

Reviews: AKG K391 NC Active Noise-Canceling In-Ear Headphones with Microphone


Austrian headphone maker AKG is owned by Harman International, best known in the Apple accessory world for its numerous well-designed Harman and JBL-branded speakers, as well as lines of premium and budget headphones. Relative to what’s come...

Taken as a whole, K391 NC is a very good noise-canceling earphone option—a premium-priced model with just enough legitimately premium functionality to be worthy of considering. Between the nice industrial design, clean sound, and very welcome...

Mar, 2013

Expert review by: Tim Gideon (



The AKG K391 NC is a powerful pair of noise canceling in-canal earphones with enough upsides to compensate for its merely average noise cancellation.

In both passive and active modes, the K391 NC outputs audio, though typically the passive mode is less powerful, with less low-frequency presence. Regardless, in either listening mode, the earphones do not distort, even on tracks with intense sub-bass...

Jul, 2013

Product Specifications


Display: No
Integrated Amplifier: No
Microphone Boom Arm: No
Multi Compatible Gaming Function: No
Mute Control: No
Sound System:STEREO
Volume Control: No


Bluetooth: No
Connection:ONE 3.5 mm Plug
USB Dongle: No

General Features

Compatibility:for 4 and more brands / Not Applicable
Form factor:In Ear Headset