And that’s it. vs. AKG K52. AKG K52 was tested with an Android phone, Windows 10 Desktop with FiiO Q1 DAC and Audio Technica M50s Studio Monitoring headphones for reference. The self-adjusting headband provides a personalized fit, ensuring comfort during marathon sessions. AKG K52. Advertiser Disclosure. Noise-cancelling headphones mean that far less background noise filters through to your ears. Units: … Our Virginia-based experts can help you find the best gear. Une sensation d'espace et de légereté. Kagoo Score. AKG K72. I've read that the K52 was the best value from several review sites. 3:52. The K92s also feature a low-impedance design for compatibility with a broad range of playback devices, from professional studio gear to portable music players. Samson SR350. I’m personally using ATH M20x and trust me it is a huge leap up from HD 180. Cable. Use code GOJI10. 75. AKG K72 vs AKG K92. suggested Audio-Technica ATH-M20x AKG K92 AKG K52 Sennheiser HD 201 AKG K240 MK II Sennheiser HD 202 PreSonus HD7 AKG K77 AKG K99 AKG K55. Circum aural: entoure les oreilles et coupe très bien du monde extérieur = permet de diminuer le volume ! But they're sure to come pretty close.The £17...... With plenty of Award-winning headphones in the bag, AKG is on a roll, so it shouldn't be a surprise that its new line of affordable over-ear cans is pretty darn good. Full Comparison. Comparison of AKG K52 and AKG K72 based on specifications, reviews and ratings. The AKG K52 costs £17.44 less than the AKG K92. Looking for a budget pair of over-ear headphones? I just got K52 and say they are pretty good. AKG K72. A fully featured and award winning 200g, 40mm driver headphones, with an affordable price. Verified Purchase. 'Noise Cancelling' denotes whether the headphones actively filter out unwanted noise when in use. At first, the differences seem superficial. The K92’s resemble more of a V-shaped sound, while the 240’s represent a true reference sound. 'Headphone Sensitivity' denotes how effectively the headphones convert digital signals into audio noise - the higher the sensitivity, the louder the headphone output will be. The K92s also feature a low-impedance design for compatibility with a broad range of playback devices, from professional studio gear to portable music players. AKG has struck gold – the K92s might just be the best value headphones we've heard in years. Compare All Headphones. From the AKG K451 to the AKG Y50 ( £50 ), the last five years have seen the company pick up a string of What Hi-Fi? Samson Z25. Sound quality is excellent. A greater number of stores increases the price competition amongst retailers for this headphones and also increases the chances of the product remaining in stock. The AKG K52 over-ears are the latest budget headphones to win u...... We've yet to review the AKG K52s pricier siblings, the K72 and K9, so with only a tenner between the three pairs in this range, we can't crown the K52s as the best value-for-money headphones bar none just yet. It turns out that all such sources consider the AKG K240 (2001) to be the superior product. ATH M30x is slight improvement over 20x but I would suggest you rather not spend those extra dimes on it. AKG K52. Kagoo Score. The K92s also feature a low-impedance design for compatibility with a broad range of playback devices, from professional studio gear to portable music players. My review of AKG's K92 Studio Monitors Support me on Patreon and I'll write a song about you :) https://www.patreon.com/fromthemountains Vendu et expédié par … AKG K92 : c'est vraiment le meilleur casque que j'ai eu (sport, hifi, DJ et autres). Apart from that difference in finish, the K92s look pretty much the same as the K52s. Prolight + Sound 2016 - Nowe słuchawki AKG K52 K72 oraz K92 - Duration: 3:52. 2,900 The headphones boast a neutral sonic signature and comfortable fit Gadgets 360 rates the headphones a strong 4.5/5 AKG K52 Headphones review: Good sound, excellent comfort, makes these headphones a compelling buy AKG is a well-known brand in the audio circle owned by Harman Kardon, now owned by Samsung. vs. Audio-Technica ATH-M20x. The impedance on the AKG K72 is 32 ohms compared to the AKG K52 which is 320 ohms, meaning the AKG K72 is better … It is noise canceling and supports noise reduction. Ses transducteurs 40 mm de qualité professionnelle révèlent les plus subtiles nuances, pour être sûr que vos réalisations seront correctement reproduites sur tout système de diffusion. The K240 will provide better Soundstage, but the K92’s is very good, especially for a closed back. They help to make comfort among the best you’ll find at the price. This affordable bit of audio kit is designed to sit nicely alongside other essentials in the AKG K-series, borrowing elements from sister models including the K240 Studio MKII, the K550 and the K702. The AKG K52 over-ears are the latest budget headphones to win us over. Akg k52, k72 & k92. Find out which is better and their overall performance in the headphones ranking. suggested AKG K72 PreSonus HD7 AKG K55 Audio-Technica ATH-M20x AKG K240 MK II Sennheiser HD 202 AKG K77 AKG K99 Samson SR850 AKG K72. AKG K52. Son appui-tête ajustable Gagnant du comparatif. The AKG K52 over-ears are the latest budget headphones to win us over. vs. AKG K72. 38 points. AKG K72 vs AKG K92. Our Verdict: A good spec but 4 year old 200g, 40mm driver headphones. The sub-$100 headphone space is super competitive. vs. AKG K52. - Offer available on any eligible product purchased... Get £75 cashback when you spend £100+ on Currys.co.uk, and switch broadband and TV Packages*. Prices Reasons For Reviews Date Released Key Features Price Trend Review Analysis Specification. Comfortable full-size form with earcups that fully enclose your ears. If you know a better solution for the same price don't hesitate to tell me this. Our review analysis indicates that it's very comfortable to wear and quiet, and well made. 34 points. Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience. Le son est équilibré, pas trop de basses (je déteste), les aigus sont bien. A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards. Taping off that vent hole results in a considerably better sound. You can afford any model in the K Series. Before we get into the AKG K92 vs. K240 comparison, grab a snack, sit back and relax because.. You’ve come to the right place!! Samson SR990. Thank you ... AKG K121 - This headphone was discontinued so it might be more expensive now that before, also the sound isn`t so good. Sennheiser RS … AKG K371. My K52 set were 3 years old still going wel, though the head band covering was looking a bit tatty. Very comfortable in use. AKG est connue pour ses produits de qualité professionnelle à l’épreuve du temps et le casque K92 ne fait pas exception. I couldn't sleep well … DRIVER. The AKG K92 are part of AKG’s new line-up of AKG Project Studio Headphones. Please be advised that the operator of this site accepts advertising compensation from certain companies that appear on the … For Smooth, enjoyable sound Plenty of detail, clarity and fluid dynamics Great rhythmic ability Good, comfortable build Excellent value Against Nothing at this price AKG K92 … Bigger drivers are more powerful and can produce better bass. AKG K52. The AKG K52 over-ear, closed-back headphones provide the perfect combination of sound quality, comfort and durability. Rather than a static padded band, a hammock of fabric cradles your head, the actual frame of the AKG K72 comprising two slim steel bands that sit above. AKG K44 vs AKG K52. 40mm. The AKG K92 is a noise canceling headphones, but the AKG K52 is not. AKG K52 vs AKG K92. 13th February 2016 #2. MORE: Best on-ear headphones 2016 This is a classic … Overall, they’re a … Objectively: Most closed-back headphones under Rs.10,000 price point have a typical “boxed-in” sound to it (for the lack of words) which K52 surprisingly avoid. Closed-back design - get lost in your sound The K92 … ... AKG K72. vs. AKG K92. What I will bring you in this comparison. AKG K52. Kagoo Score. Sennheiser HD 300. It’s not a blingy gold, but a subtle, almost champagne-like gold. 4 editorial reviews. The AKG K52, K72 and K92 are all available now priced at £29 RRP ex VAT, £39 RRP ex … Share on. AKG K52 vs AKG K92. Reviewed in the United Kingdom on July 15, 2016. Achat Casque AKG K52 (K52) sur LDLC.com, n°1 du high-tech. The impedance on the AKG K72 is 32 ohms compared to the AKG K52 which is 320 ohms, meaning the AKG K72 is better suited to being used with portable devices, such as your phone. Suljettu rakenne – uppoudu ääneesi K92 … I found it much better at the price … The lower the low-frequency response, the stronger and juicier the bass. … Comparison of AKG K44 and AKG K52 based on specifications, reviews and ratings. The AKG K72 and the AKG K92 are designed to work well with all of your high end audio equipment and are suited to professional studio use. AKG Pro Audio K92 Over-Ear, Closed-Back, Studio Headphones, Matte Black and Gold, AKG K92 Closed-Back Studio Headphones w/Holder and Extension Cable. AKG K52. Nous les exposons à des tests rigoureux pour nous assurer de leur résistance : notre batterie de tests de résistance aux chocs simule des chutes exagérées. vs. boAt BassHeads 235 V2. Sennheiser HD 202. Build quality feels a bit cheap but sound … vs. AKG K52. - To redeem this... Kagoo Explains: Bone Conduction Headphones, Kagoo Explains: Closed vs Open Headphones, Kagoo News: 3D Audio comes to the Apple Airpods Pro, Kagoo Explains: The story behind Bluetooth, Kagoo Explains: Passive vs Active Noise Cancelling. Advertiser Disclosure. vs. Sennheiser HD 400S. Samson SR880. DRIVER. vs. AKG K52. Mpow 35Hrs Noise Cancelling Headphones, Bluetooth Headpho... Wireless Earbuds, M16 Wireless Headphones with Deep Bass, US... Bluetooth Headphones, Mpow S16 Wireless Bluetooth 5.0 Earphone... Clear and airy presentation, Evenly balanced sound, Plenty of detail, clarity and fluid dynamics. If I understood correctly, m20x have slightly better sound, but k52 looks more comfortable. Cyber Monday deals: see all the best offers right now! Addition, I got the AKG 92 headphones a couple of days ago Nov 2019. The length of the cable between the headphones and the jack. Our Verdict . Based on our rating, K240 STUDIO has a total rating of 6.5 out of 10 vs 6 for K52. Audio-Technica ATH-A550Z Noir. The dog ate the plug off of them? The K92’s generous 40mm drivers deliver the highest sensitivity and widest frequency response of the K52 and K72 - resulting in powerful output that reveals every detail. Sennheiser RS 160. The HD330 and 681 evo are a joy to listen to, but no way flat in their signature. Comparing Sennheiser HD 280 Pro and AKG K92? This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. (les "over ear" compressent les … AKG K52. The K range relies on two main design elements for its price-versus-quality selling point. they're portable, foldable and you can pause and skip tracks with them.But if you're mostly going to be listening to your music at home, and...... Save 20% on Instant Replacement when you buy this product. AKG K52 vs. K240 Studio. It offers potential for maximum bass and loudness levels. If you’re looking for an under-$50 pair, you may consider the AKG … There are other well-known brands, such as the Audio Technica M-series, competing for the slice of the pie.On top of that, the K92 has to face challenges from its own predecessors, AKG K52 and K72. 200g. There are other well-known brands, such as the Audio Technica M-series, competing for the slice of the pie.On top of that, the K92 has to face challenges from its own predecessors, AKG K52 and K72. Their headband deserves some credit too. Share Quote. Other Products We Considered The BestReviews editorial team researches hundreds of products based on consumer reviews, brand quality, and value. The AKG K92 has a cable length of 3m, but the AKG K52 is only a 2.5m cable length headphones (0.5m shorter). Scroll down for more details. The K92’s generous 40mm drivers deliver the highest sensitivity and widest frequency response of the K52 and K72 - resulting in powerful output that reveals every detail. With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking. jaybird x2 vs x3 canon eos rebel t6 vs nikon d340 canon t7i vs nikon d5600 logitech z623 vs z625 pg278qr vs pg279q nikon d3200 vs d3300 razer deathadder vs razer mamba d5500 vs d7200 g603 vs g703 g533 vs g933 iPhone 6s vs … 90 $ 64. It’s closed back nature enriches an overall listening experience. MENU ... AKG K92. This makes music easier to hear, and can lead to improved concentration and productivity, as well as being nicer to use in noisy environments (such as airplanes). AKG K92. The superlux hd 681 evo or the akg k92 ? What is the difference between AKG K72 and AKG K92? As for a direct AKG K92 (2016) vs. AKG K240 (2001) comparison of their review performance, we examined sources that tested and rated both products, like Head-fi. AKG K72 vs AKG K52; Product Comparison: AKG K72 vs AKG K52. 75. vs. AKG K92. This site is a free online resource that strives to offer helpful content and comparison features to its visitors. The K240’s come with a detachable cable while the K92’s do not. AKG K72 | Casque Audio | Retrouvez toutes nos publications, meilleurs prix et bons plans, avis et actualités sur ce modèle. Casque dj et studio akg K72 asque fermé circum-aural Le casque fermé circum-aural AKG K72 permet d’accéder à une qualité de son professionnelle avec style et pour un prix plus qu’abordable. vs. AKG K72. 40mm. £43.99. Both sets of headphones are also compatible with your portable devices and can be used with your phone or laptop without requiring an additional amp. Share on. AKG K52. K92:n ominaisuuksiin kuuluu myös matalan impedanssin rakenne, jotta se olisi yhteensopiva monien toistolaitteiden kanssa, aina ammattilaistason studiolaitteista kannettaviin musiikkisoittimiin. AKG K72 vs AKG K92. SOUND: AKG K72 vs Audio-Technica ATH-M30X When it comes to sound, the presentation and sonic signature of the AKG-K72 is extremely open and clean, offering an excellent sense of space and a wide sound stage. vs. AKG K92. The higher the high-frequency response, the clearer and crispier the treble. Share on. £77.69. ... Got the K92. We consider a lower weight better because lighter devices are more comfortable to carry. The first is the 40mm drivers present in all thre… SixStringGuitar. AKG K52. Compare AKG K52 vs AKG K240 STUDIO headphones side-by-side. The headphones are built well (especially for a £50 pair), … Boucle D'oreille. 76. - Get £50... Save 10% on selected Goji Headphones when bought with selected tablets. I have listened to the AKG K52 but not the K92. Why is AKG K92 better than AKG K52? X. I think for under $100, of the ones I've listened to and for the music genres are the Grado SR80 and the SHP9500. Des connexions en finition or et 80 000 pliages des … AKG K72 vs AKG K52; Product Comparison: AKG K72 vs AKG K52. At £30, the K52s sit on the cheapest end of a new line, followed closely by the K72 (£40) and the K92 (£50). Full Comparison. AKG K92 $ 79. AKG K52. Available colors: Editiorial reviews: 4.5 / 5. Kagoo Score. I’ve been recommending headphones costing at least three times this amount and will be putting them up against such reference ’phones – so we could be in for some surprises. 39 points. Here for the gear . That said though, the best AKG under $100 is probably the K240 or M220 (massdrop version). K240 graph vs. K92 graph. Well watch this review to find out how the K52's stack up to the competition. 75. The K92’s generous 40mm drivers deliver the highest sensitivity and widest frequency response of the K52 and K72 - resulting in powerful output that reveals every detail. EN PL DE. 5.0 out of 5 stars AKG K52 and K92 Closed Back Headphones. … AKG K99. From some brief “google-fu”, it seems like there are mixed reviews of the K92.So is K92 a worthy headphone that you should buy for under … How to Choose a Headphone Amp and DAC - Duration: 6:44. This page is currently only available in English. MORE: AKG K52 review. The AKG K52s are all-black, losing the silver ear cup caps and also the ridged texture of the K72’s cups. I have not listened to the K92 yet but since it´s a some what AKG studio monitor my guess is that its going to have a rather flat signature ala K240/242 etc. The AKG K52 was released three years later than the AKG K92. Produits similaires au Casque dj et studio akg K52. Le casque AKG K92 est un casque de monitoring d'entrée de gamme conçu pour une écoute hi-fi ainsi que pour une utilisation en studio. Foldable devices are easier to transport and take up less storage space. The AKG K92 has better expert reviews than the AKG K52. 90. AKG K52 Shop now at Amazon ... AKG K92. Professional drivers deliver solid bass, well-defined mids and clear highs so you can hear exactly what’s happening. MORE: AKG K92 review. AKG K52 vs AKG K72. AKG K52. The AKG K72 are large circumaural headphones with pads large enough to engulf all but the most gigantic of ears. AKG K72. Casque circum-aural fermé Hi-Fi / Monitoring. It improves the mid-range in that it’s not as harsh, but also results in a loss of treble detail. Though it looks bulkier, it’s unique design makes it so comfortable that even after listening on this for couple of hours will not cause any trouble. Categories; Brands; Versus; EN. The AKG K52 is priced at Rs. We also looked at the available data to find which sources liked each of them best and learned that the AKG K92 … Compare All Headphones. As a general rule of thumb, for most products out there we as people tend to have the same belief, the more expensive it is the better the quality should be. vs. Audio-Technica ATH-M50x. 83. Awards. Overall sound. Introduction; Similarities & Differences; Final Word; Now without further ado, let’s get rolling!! The lowest frequency at which the device produces audio. Will probably get my hands on it late april. AKG K72 vs AKG K92. Devices with a higher sound pressure level are generally louder when supplied with any given audio source. Impedance is the device’s electrical resistance to the current being pushed through it. AKG headphones range greatly in price, so it’s easy to find a reliable budget pair or a professional-quality set of headphones that will last for years. The K92’s driver has a small hole in the front and a vent hole in the back while the K52’s does not. The AKG K92 has a headphone sensitivity of 113dB, but the AKG K52 is only a 110dB headphone sensitivity headphones (3dB smaller). Sennheiser HD 202. AKG K52 - Soyez certain d’entendre tous les détails de votre musique avec le casque fermé AKG K52. Looking for a budget pair of over-ear headphones? Our Verdict: A good spec but 4 year old 200g, 40mm driver headphones. Ad. X. Gold trim may prove divisive. AKG K52 Shop now at Amazon. Kagoo Score. When talked about warranty, AKG K72 comes with 2 years of warranty and ATH-M30X is enveloped with 1. The AKG K72 and the AKG K52 are designed to be used for studio monitoring and will work at their best with your studio audio equipment. Share on. Prices Reasons For Reviews Date Released Key Features Price Trend Specification. They’re extremely comfortable, have wider and more detailed sound than comparable street pairs and use a longer, tougher cable too. Samson SR850. Présentés au cours du NAMM 2016, les K52, K72 et K92 seront les nouveaux casques d'entrée de gamme de chez AKG pour la catégorie casque de monitoring. AKG K77. Comfortable to wear. Our review analysis indicates that this earphone is quiet and comfortable to wear. Without knowing any of the marketing off hand, it sounds like K52 was designed for casual young listeners and the K240 was designed for monitoring. AKG K271 MKII. Samson Z45. These look good value but wonder how they will compare to others in the same price range, such as iSK? Sennheiser HD 201. K92:n reilut 40 mm elementit tuottavat K52:sta ja K72:sta tuttua herkkyyttä – tuloksena on voimakas, jokaisen yksityiskohdan paljastava ääni. Kagoo Score. AKG K92 Shop now at Amazon. Our Verdict: A critically acclaimed but 2 year old 200g, 40mm driver headphones, with a good … 76. A long cable ensures more freedom of movement. 05 November 2018. vs. AKG K701. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products. Wireless devices allow users more freedom of movement. AKG K52 vs AKG K92. AKG K92 review AKG strikes gold with these great value headphones By What Hi-Fi? Samson Z35. “With the launch of the K52, K72 and K92 headphones, AKG has demonstrated its commitment and expertise in delivering value to music recording customers.” Pricing and Availability. The other models are the K52 and K72. The AKG K240 Studio’s are a legendary pair of … User rating ★ 1 Star ★ 2 Star ★ 3 Star ★ 4 Star ★ 5 Star not rated ★ 1 Star ★ 2 Star ★ 3 Star ★ 4 Star ★ 5 Star not rated. Popular comparisons. vs. Shure SRH240A. DESIGN: Audio-Technica ATH-M20X vs AKG-K52 The ATH-M20X is an upgrade to the ATH-M20 and thus sports a slightly upgraded design as well. It’s quite clear what to expect from the AKG K92 straight off the bat, with the headphones themselves presented alongside a stereo adapter with a mini to large jack selection. Sennheiser HD 201. But thankfully AKG still has the capacity to surprise us. £31.63. The cheapest, the K52, weighs in at just £39 plus VAT; the most expensive at just £59 plus VAT. AKG K182. Great sounding. 200g. The K52 has a lot of high frequencies but with added bass too. Price-wise, the closest competition would seem to come from within – the Award-winning Y50s. Like most websites, we use cookies to improve your experience. But they are a completely different proposition. Why is AKG K52 better than AKG K92? Unlike the all-black finish of the K52s and the middle-ground K72s, the K92s have gold accents that give them a pop of colour and distinguish themselves as the leaders of the line-up. This new product line-up is aimed at combining pro quality sound, style, and affordability. Shure SRH440 - Very good closed headphones, in fact I … Shares. Add products. Unlike those headphones, the AKG K92 strikes a good b… Sound; AKG K44 AKG K52; ... AKG K92. Well watch this review to find out how the K52's stack up to the competition. Prices Reasons For Reviews Date Released Key Features Price Trend Specification. The AKG K92 has a cable length of 3m, but the AKG K52 is only a 2.5m cable length headphones (0.5m shorter). Doté de larges transducteurs, ce casque très confortable constitue une solution idéale pour profiter d'une grande qualité de restitution pendant de nombreuses heures. The highest frequency at which device produces audio. Share This … Système : Fermé, circum-aural Bande Passante : 16-20000 Hz Impédance : 32 Ω Puissanc; Casque dj et studio akg K92 … The AKG K72s are great-value headphones, and better for home duties than street ’phones for a number of reasons. Home > Comparatif: écouteur > AKG K72 vs AKG K92. 75. The AKG K72 and the AKG K52 are designed to be used for studio monitoring and will work at their best with your studio audio equipment. The lower the impedance, the easier it is to get higher volume and requires less power. For some time now, AKG has been the king of affordable headphones. AKG is one of the few companies out there that have been willing to buck thi… Introduction. The headphones … By clicking "OK" or continuing to use our site you accept our, AKG K52 Headphones - 3.5 Mm to 6.3 Mm Adapter, AKG K92 Headphones - 3.5 Mm to 6.3 Mm Adapter, AKG K92 vs Urbanears Plattan ADV Wireless. The sub-$100 headphone space is super competitive. 31 points. vs. Audio-Technica ATH-M20x. AKG K52. 4.8 / 5. Based on 7 reviews, the average expert review score of the AKG K92 is 93%, whereas the average rating of the AKG K52 is 90% (based on 5 reviews). AKG K44. With a little research online I found akg k52 and audio technica ath-m20x. This AKG K52 is one of the best headphones I have used so far. £43.99. Price-wise, the closest competition would seem to come from within – the Award-winning Y50s. AKG K72. The average expert reviews score for the AKG K92 is 93% based on 7 reviews, where as the average score for the AKG K52 is 90% based on 5 reviews. The headphone industry is probably more susceptible to this line of thought than any other with the general thought process being if you want great headphones, you’ve got to be willing to pay more. £77.69. 2Hz lower low-frequency ... AKG K52. From some brief “google-fu”, it seems like there are mixed reviews of the K92.So is K92 … AKG K52. For headphones aimed at the mixing market, that is extraordinary. AKG K52 vs AKG K92. If you're thinking of spending £50 on a decent pair of headphones, you might already be looking at the AKG Y50s ? Electronics gift ideasSee on Amazon. The AKG K92 has received a Kagoo Score of 83, whereas the AKG K52 scored 81. vs. AKG K92. This site is a free online resource that strives to offer helpful content and comparison features to its visitors. That said, both have 40mm drivers. La réputation d'AKG n'est … Nom du produit:1 paire coussinets d'oreille coussin de remplacement pour AKG K52 K72 K92 K240 écouteurs SCY90926105 BOUCLE D OREILLE 1 paire coussinets d'oreille coussin de remplacement pour AKG K52 K72 K92 K240 écouteurs SCY90926105 BOUCLE D OREILLE. At £30, the K52s sit on the cheapest end of a new line, followed closely by the K72 (£40) and the K92 (£50). Compare All Headphones. AKG K72. It's a critically acclaimed but 2 year old 200g, 40mm driver earphone, with a good spec and a reasonable price. PortalStudyjny 5,365 views. Verdict. The driver unit is the component that produces sound in the device. What is Soundstage? Get FREE 2-day shipping and free lifetime tech support with your order. The AKG K92 has received 1 award, but the AKG K52 has received no awards. The K52’s are relatively new headphones launched at the beginning of this year. 3 editorial reviews. 83.
2020 akg k92 vs k52