AKG K 28 NC
Manufacturer: Harman Kardon Part number: K28NC
- More product information:
- Editors' review
- User reviews
- Specifications
- Manufacturer info
- Bottom Line:
- AKG's megabass-endowed, Walkman-style noise-canceling headphones are nearly as effective as cumbersome over-the-ear models.
Read more
Where to buy
| store | customer rating | inventory | tax & shipping | price |
|---|---|---|---|---|
| Amazon.com Marketplace | ![]() | In stock | Enter zip code to get total price: Price +Tax +Shipping =Total price | as of 12/08/2009 |
CNET editors' review
AKG K 28 NC price range: $128.95
- Reviewed by: Steve Guttenberg
- Edited by: David Carnoy
- Reviewed on: 07/12/2005
- Released on: 04/15/2005
The good: Massive bass response; highly effective canceling; featherweight design; fold-up headphones fit in your pocket; soft storage case.
The bad: Battery and noise-canceling electronics live in a separate module that you hang on your hip.
The bottom line: AKG's megabass-endowed, Walkman-style noise-canceling headphones are nearly as effective as cumbersome over-the-ear models.
Alas, the one drawback to going small with these type of headphones is that it becomes very difficult to build the noise-cancellation circuitry into one of the earcups--that's what you get when you go with something like Bose's QuietComfort 2 or Sony's MDR-NC50. The K 28 NCs are equipped with an external or in-line Active Noise Reduction filter/battery pack (it's powered by a single AAA), which is fitted with a belt clip and a red LED that indicates NC operation and battery status. The cable is 80 inches long overall--about half on either side of the battery pack. Supplied accessories include a dual-pronged airline adapter, a gold-plated 1/8-inch stereo adapter jack, one AAA battery, and a black cloth carry bag.
On to the sound test: plugged into our iPod, the 28 NCs held up suprisingly well to some recent competitors--namely, Sony's MDR-50NC and the Outside the Box Solitude models--in the noise-banishing department. The 28 NCs were nearly the Sony and Solitude's equal, but the AKGs are a lot smaller and lighter--they weigh a mere 2.6 ounces--and are therefore more portable. True, the AKGs' small ear pads exert a fair amount of pressure against your ear to maintain a good seal, but we found them to be comfortable over many hours of use. More good news: the little K 28 NCs are remarkably efficient, so they can play a lot louder than those full-size 'phones over puny-powered MP3 players.
The AKGs' bass is exceptional--the headphones' power and definition were almost on a par with the larger Sonys', but the Sonys revealed little details in the sound the AKGs glossed over. For example, on David Byrne's tune "Glass, Concrete & Stone" we could easily hear Byrne breathing and softly counting the rhythm before he starts to sing. Over the AKGs, those sounds were inaudible.
Next, we fired up the White Stripes' new Get Behind Me Satan CD, which amply demonstrated the 28 NCs' awesome bass. Some of you might even think there's too much bass--we did--or that the overly abundant bottom end tends to obscure treble detail and gives vocals a slightly muffled character. However, these headphones never sounded harsh and would be ideal for those buyers searching for a velvety smooth sound.
As with most noise-canceling headphones, the 28 NCs' Active Noise Reduction filter can be switched on or off. We're happy to report the 28 NCs' noise-canceling circuitry doesn't adversely affect sound quality. Most NC 'phones reduce bass when the circuitry is engaged, but the AKGs' sound is remarkably consistent.
User reviews
-
-
Excellent All Around Performer
by lawadvisors on July 8, 2006
Pros: Very Good Sonics, Good Noise Cancellation
Cons: long cord, noise cancellation housed in cord
Summary: Recently I purchased a demo pair these cans for $93.00 from a local retailer. It's the best value I can remember for headpones considering the street price is $...
Summary: Recently I purchased a demo pair these cans for $93.00 from a local retailer. It's the best value I can remember for headpones considering the street price is $159.00. In terms of sound quality for portable sized headphones these phones sound better than every portable phone I've tried other that the Etymotic ER-4ps (which I ended up selling because they were too uncomfortable in my ears after 30-45 minutes). Bass is great and the mids and highs are fairly clear and smooth when using the phones my with my 40GB Ipod and PocketAmp Version 2 headphone Amp. After purchasing, I returned my Bose QC3 headphones. Noise cancellation is slightly superior with the Bose, however sonics are better with the AKGs as the QCs have a muffled midrange and high end. Strongly recommended for portable use. Have high efficiency so you should be able to crank the volume with most MP3 players and portable video devices.
7 out of 7 users found this user opinion helpful.
-
Great sound but they break EASILY
by goosh69 on July 24, 2006
Pros: Great sound, as good as more expensive models
Cons: I have had to return them 2x cuz they break
Summary: These sound 99$ as good as Bose QC2's AND better than Sennheiser PXC 250's for pop/rock/r&B. HOWEVER, I bought my pair in Feb 2006, ...
Summary: These sound 99$ as good as Bose QC2's AND better than Sennheiser PXC 250's for pop/rock/r&B. HOWEVER, I bought my pair in Feb 2006, and have had to send them in under warrenty TWICE since they break very easily from normal wear and tear. They are more brittle than a child's toy.
5 out of 5 users found this user opinion helpful.
-
Uncomfortable on the ears, "noisy" noise-cancellation
by dexterboygenius on March 23, 2007
Pros: air plane adapter, big bass, relatively detailed sound
Cons: high pressure on the ears, noise cancellation adds noise by itself
Summary: For people with sensible ears, these headphones are not the right choice. The cups add a fair amount of pressure on your ears, which let my ears ache already after ...
Summary: For people with sensible ears, these headphones are not the right choice. The cups add a fair amount of pressure on your ears, which let my ears ache already after an hour.
I was somewhat disappointed by the noise cancellation, which canceled less than I expected. Furthermore, the cancellation curcuit is producing a small noise by itself, which limits its use further.2 out of 2 users found this user opinion helpful.
-
Almost perfect
by navinrjohnson on February 3, 2007
Pros: Bass response, size, lightweight, comfortable
Cons: Switch on NR unit easy to leave on
Summary: I have only two complaints about these phones - (1) imaging and detail is not the greatest, (2) the power switch on the noise reduction unit easily gets switched on ...
Summary: I have only two complaints about these phones - (1) imaging and detail is not the greatest, (2) the power switch on the noise reduction unit easily gets switched on while it's packed away, which drains your batteries.
2 out of 2 users found this user opinion helpful.
-
Lousy headset
by glangenwalter on October 2, 2007
Pros: Small size; easy to pack; excellent sound
Cons: Poor noise reduction; no volume control
Summary: Not worth the $100+! Did such a poor job of canceling noise on a flight to Australia that I had to put my foam earplugs in.
You're much better ...Summary: Not worth the $100+! Did such a poor job of canceling noise on a flight to Australia that I had to put my foam earplugs in.
You're much better off with $150 Sharper Image over-the-ear headset, except for its bulk. It did a much better job canceling noise on a flight to Australia, and had excellent sound quality as well.1 out of 1 users found this user opinion helpful.
-
Great sound & noise cancelling, but poor in other respects
by headphone guy on June 11, 2007
Pros: Great sound quality, highly effective noise cancelling
Cons: Folding design is goofy and annoying
Summary: It is unfortunate that whoever did the physical design for these headphones chose such a goofy folding design, because if it weren't for that, these would be excellent headphones....
Summary: It is unfortunate that whoever did the physical design for these headphones chose such a goofy folding design, because if it weren't for that, these would be excellent headphones.
The sound quality is excellent. The bass belies the small size. The bass may even be too strong for many, but it is quality bass, which is to say that it is reasonably uniform over the bass frequencies, and without the muddy sound that typically accompanies drivers that are underdamped. The frequency response is very uniform over the full audible range, and there are no obvious resonances or peaks anywhere. The noise cancellation circuitry works as well as any noise cancelling headphones that I've ever used or listened to.
Notwithstanding all that, I still can't recommend these headphones, because the folding design is goofy and highly annoying. If you study the picture, you will see that the hinges that allow it to fold on each side, are not oriented at right angles to the band. The hinges are set at an angle, so that instead of folding straight, one side folds toward one the front and the other side folds toward the back. There was no reason to do this, because the earcups are easily small enough to fold up within the band and still close the band most of the way. The intent was that the two earcups also rotate, so that they rest against each other face-to-face. They won't quite do that in the way that you would expect, because the pivots won't allow them to rotate far enough for that. It works better if you rotate the cups the other way, so that the backsides of the cups rub against each other. But it is still just goofy and annoying. Each and every time that you use them, you will look at it and wonder what in the world possessed someone to do this this way.
The stretchy sack that comes with it is just barely large enough to hold the headphones alone, much less the separate module. The two plug adapters just toss into the sack, and sooner or later they will fall out onto the floor of an airplane or train or whatever, never to be seen again.
The cord is ungainly, mostly due to the excess length of the section between it and the headphones. The headphones are able to be much lighter as a result of the separate module, but thus far no one has figured out a good way to do this. Because of the extra length of the cords, you can sort of it configure it however you like, by shortening one or the other of the two cables. You can find or make a small spool of sorts on which to wind the extra cord. I reduced the length of the cord between the headphone and the module to less than half what it was originally, so that it it works well for when the module is in my shirt pocket. The other option would be to use small wire ties and make it as though the headphones and the module were both connected into the plug.
The headband is also uncomfortable. The pads on the two points where each half of the metal band terminates with the other part sliding through, are much to hard to be comfortable. I wondered why this was different from the similar Koss headphones, so I compared the two. The Koss headphones have a much thinner pad, and the surface under the pad is completely flat. AKG chose to incorporate a rim on the four sides of that little square, with a recess for the pad. In effect, the greater thickness of the pad was made necessary by that recess, which was put there, ostensibly, for the pad. The recess is not needed, and were it not for the recess, the pad itself would not need to be as thick or as firm. I replaced the pads with some softer foam, and I added a short length of cloth-covered neoprene to the underneath of the metal band.
Specifications
- Manufacturer: Harman Kardon
- Part number: K28NC
- Description: Noise causes stress. Thundering jet engines, the rattling of railroad coaches, engine noise on a bus, the voices of fellow travelers: when on a trip, it is not easy to relax by listening to music. Too much ambient noise gets in the way. K 28 NC from AKG with Active Noise Reduction circuitry let you enjoy music on every trip without being disturbed by ambient noise. Put Active Noise Reduction in your pocket: the entire featherweight system comprising the high quality folding mini headphones, noise reduction filter with clip, airplane and stereo adapters is contained in a small, light carrying bag and allows relaxed listening at normal volume levels even in extremely noisy environments, and provides excellent sound quality.
General
- Recommended Use The noise canceling feature keeps out ambient sounds on buses and airplanes. Plus, they are portable for easy transport.
- Product Type Headphones
- Weight 2.6 oz
- Additional Features Foldable, Gold plated connectors, Noise canceling circuit
Headphones
- Headphones Type Headphones - Binaural
- Headphones Form Factor Semi-open
- Headphones Technology Dynamic
- Connectivity Technology Wired
- Sound Output Mode Stereo
- Response Bandwidth 12 - 28000 Hz
- Sensitivity 125 dB
- Impedance 32 Ohm
- Diaphragm 1.6 in
Connections
- Connector Type 1 x Headphones ( Mini-phone stereo 3.5 mm )
Miscellaneous
- Cables Included Headphones cable - 6 ft
- Included Accessories Carrying case, Airplane adapter, 6.3 mm (1/4") stereo adapter
Power
- Battery 1 x Standard battery - AAA type
Manufacturer info
- Harman Kardon
- Manufacturer profile
- Browse Harman Kardon products on Shopper.com
-
- Website: http://www.harman.com
- Address:
1101 Pennsylvania Ave, Washington, DC - Phone: 202-393-1101
- Fax: 202-393-3064








