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On Ear Closed Back Mic Headphones

  • With What Hi-Fi? Sound and Vision magazine's over 35 years experience in the industry it's easy to see why a What Hi-Fi? Award is one of the greatest honours that can be bestowed upon a product.
  • What Hi-Fi? magazine is the world's leading independent guide to home entertainment products. Any product they award with a 5 star rating is instantly marked out as one of the best around..
With What Hi-Fi? Sound and Vision magazine's over 35 years experience in the industry it's easy to see why a What Hi-Fi? Award is one of the greatest honours that can be bestowed upon a product.
What Hi-Fi? magazine is the world's leading independent guide to home entertainment products. Any product they award with a 5 star rating is instantly marked out as one of the best around..

(For more features refer to the specification table below.)

TSP 49.95 SAVE £10

NOW £39.95

All our web prices are valid in-store
LOWEST PRICES GUARANTEED!We'll beat any genuine advertised price,
even from the web & give you up to £100!

We're confident that our prices are amongst the very keenest out there, so we've made it as easy as pie to qualify for our Price Beat. Richer Sounds also guarantees to beat web prices, and Price Beat is even valid for 7 days after purchase, so if you've seen a cheaper price, let us know, and we'll happily beat that price by up to £100!

Products must be brand new, boxed, carry a comparable guarantee and be in stock at time of purchase.
T&Cs apply.

"You won't want to take these off - not only do they look good, they're excellent sonically, too." What Hi-Fi Sound & Vision magazine 5-star review at £79.95


Following on from the multi-award winning AKG K450 headphones, the replacement K451 design has already scooped a prestigious What Hi-Fi 5-star award. So good, in fact, are these headphones that What Hi-Fi magazine said there was; "nothing at this price" that could be faulted with them - praise indeed!


High power drive units and a closed-back design give the AKG K451 an intense, powerful sound. Yet, thanks to the innate quality of these headphones, subtle detail is carefully revealed and nuances can clearly be heard. In short, whatever you listen to will be superbly presented and involving.


New to the K451 is a built-in microphone with volume control. Ideal on a pair of mini headphones likely to be used on the move, this enables you to listen to music and take calls on your Apple iPhone effortlessly.


The unique 3D-axis mechanism doesn't just make these headphones easy to fold and carry, it also ensures a perfect fit against your ears. The soft, padded, headband and ear pieces simply add to the long term comfort of these headphones. Although lightweight, the K451s are durable. A detachable cable and folding design helps when transporting the headphones but you'll also discover a solid build quality that's a step or two up from many rivals.

With a spec and sound so complete, the AKG K451 headphones are hard to beat.

2 year limited guarantee included

Print all features

In EarCan the headphones be used in the ear?No
Over EarCan the headphones be used over the ear?Yes
CordlessAre the headphones Cordless? Optional requires a Bluetooth transmitter.No
Noise CancellingDo the headphones feature active noise cancelling technology to block outside noise?No
SensitivityHeadphone sensitivity is measured in dB. The lower the figure, the more powerful the driving amplifier needs to be. Headphones for use on portables need to be of higher sensitivity than home hi-fi ones.126
ImpedanceImpedance is measured in ohms and should be matched carefully to the driving amplifier for the best sound quality and reliability.32
Frequency ResponseFrequency response is measure in Hz and gives an indication of how low and how high the headphones will go.11 - 29,500
Cable LengthLength of cable supplied in metres.1.2
WeightWeight of headphones in grams, without packaging.120
Plug sizeThe size and type of plug fitted and whether an adaptor is supplied. 3.5mm is standard on most portable devices whilst home hi-fi usually accepts 6.35mm (quarter inch) size plugs.3.5mm with 6.35mm adaptor inc.
Open backOpen back headphones offer the most spacious sound but can leak sound, disturbing others. They also block less outside noise than closed back headphonesNo
Closed backClosed back headphones block out more background noise than open back ones. They also leak less soundYes
Rated 4.8 out of 5áby 104 reviewers.
Rated 5 out of 5áby Great kit superb service. The headphones are great but the service from Richer Sounds is superb nothing was too much trouble !! Excellent ,not often you can say that today. 28 August 2015
Rated 5 out of 5áby Excellent sound and portability for the price! Great for what I need which is a set of cans that look good without being ridiculously large being used on the move with good sound that I can sit on, loose or have stolen without shelling out over ú100+ for a higher end pair. They're light and easy to wear too - would recommend. 27 August 2015
Rated 5 out of 5áby Amazing Headphones The AKG K451 have been out for a few years but they still a fantastic set of on ear headphones especially in their price bracket. The audio quality is outstanding! To me, the best in its class by a long way. I have had these headphones for a couple of months now and am still amazed when I listen to a track I haven't heard in a while and suddenly find a whole new level to music not previously available through poor speakers and poor headphones. The rang on these headphones is incredible, highs are crisp and on point, the lows are deep and rich but not overpower like a lot of the current market headphones (Beats I'm looking at you!) And the mids are well rounded and clear. Like most on ear headphones, after extended periods of wearing they can leave your ears a little achy but by no means should this put you off, the pleasure of listening to them far out-ways this. If you are after a great pair of on-ear headphones these are a very strong contender. 09 August 2015
Rated 5 out of 5áby Amazing for under ú40 Light, comfy, loud, amazing Hz range, ultra low bass, crystal clear highs, no distortion at top volume, highly recommended. 30 July 2015
Rated 5 out of 5áby Great headphones at a great price I was looking for a pair of headphones that were portable, comfortable to wear for extended periods and last but not least , had good sound. These headphones would have ticked all the boxes at their original price - so with the large discount they are just great value for money and the sound is great. 26 July 2015
Rated 5 out of 5áby Great value for good sound I bought this as a present for my Dad, who was previously using the rubbish apple provide. The bass is full and the sound doesn't go funny at high volume. The quality is excellent for the price. Just as the people at what Hi-Fi said. The carry case is a great size for a backpack or work case, as portable as over-ear headphones could be. In addition, the staff in store in Deansgate, Manchester, were just great. 11 July 2015
Rated 5 out of 5áby Clear, clean sound in a compact package Well-made, robust but compact. Great, well-balanced sound, excellent value at ú49. Only minor negative was that I found the headband a little tight for extended use. 07 July 2015
Rated 4 out of 5áby Really good sound for the price Voted best headphones on HiFi magazine 2013 for the price. Went to Richer Sounds Liverpool who price matched from internet website. Very please with my purchase 02 July 2015
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Prices valid in store (all including VAT) until close of business on 02nd September 2015.
(some of these web prices are cheaper than in-store, so please mention that you've seen these offers online)

Please note: 03 numbers are NOT premium rate numbers | For more information click here

TSP = Typical Selling Price. TSPs are based on information supplied by What Hi-Fi? Sound and Vision magazine, manufacturers, Hi-Fi Choice, Home Cinema Choice & Pricerunner. Further information is available on request.