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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.)

RRP £49 SAVE £20

NOW £29.95

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. Richer Sounds price used to compare will be net of any voucher / trade in discounts.
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 109 reviewers.
Rated 5 out of 5áby AKG K451 I bought two of these units (one as a present) and I am very very happy I did! I put the headphones on as soon as I left the store and instantly realised what I had already known, that I should not have invested in in-ear earphones for the past X years. The experience with these AKG K451s has been wonderful. I am truly 'listening' to my music now, instead of simply have it sort of 'playing in the background'. I am sure they are not the absolute best around, more expensive models surely take that title. But for under ú30 I would be highly surprised that you can come close to beating these for value for money and quality. The only minus with them is perhaps they don't 'grip' the ear enough. For instance if you bend forward they can sometimes slip. And my head is not exactly small so..? The biggest negative is the carrying case. It could have been better designed to allow the headphones to slot in more easily and not put strain on the zip, of which there is only one, not ideal. 10 November 2015
Rated 5 out of 5áby the best portable headphones you will ever buy! I purchased theese headphones at richer sounds solihull store for ú39. a absolute bargain! The sound quality is absolutely awesome! Just the right amount of bass not muddy or overpowering like the beats headphones crystal clear treble and midrange and if you like your music loud you are in for a absolute treat you certainly will not be dissapointed!whatever genre of music you listen to theese headphones deliver in spades in my personal opuniin they bliw the beats bose and senheissers out of the water for value and sound quality the staff at richer sounds were excellent and helpful as allways buy a pair of theese headphones while you still can believe me it will be the best purchase you will ever make you will simply wont want to take theese headphones off the akg 451s deliver sound that is simply better than headphones costing hundreds of pounds more! 22 October 2015
Rated 5 out of 5áby probably unbeatable at this price point I've worn my K-451's daily at my office, up to 6hrs per day, for over 2 years. During my ownership the tightness of the folding mechanism has reduced with wear and tear, but this is surely to be expected with hundreds of repeated uses? They come supplied with an excellent and robust carrying case, and two sets of interchangeable leads (in-line mic and one without), again, great value. Sound wise, I've been a habitual earphone buyer over the last 20 years - spending small fortunes on ultimately disappointing headphones,these are easily the best sub ú100 earphones ive ever heard - with crisp highs and natural lows, & they seem to extract more detail than comparable sets. For a compact closed back style, the only earphones i'd trade for are the B&W P5 - which cost more than 5x at full RRP! Granted, my RHS speaker appears to have blown today which is why im here reviewing, prior to purchasing another set - as for ú40 and with long term daily use i cannot possibly ask for more. 23 September 2015
Rated 4 out of 5áby small, good value, good but not amazing sound vocals can sound a bit distant. Ears can get a bit warm 15 September 2015
Rated 5 out of 5áby Great portable sound for commuting Sound great once broken in, good range and not too bassy at all. 08 September 2015
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
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Prices valid in store (all including VAT) until close of business on 28th November 2015.
(some of these web prices are cheaper than in-store, so please mention that you've seen these offers online)

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RRP = Recommended Retail Price. RRPs are based on information supplied by What Hi-Fi? Sound and Vision magazine, manufacturers, Hi-Fi Choice, Home Cinema Choice, Google, Which? & Pricerunner. Further information is available on request.