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AKG K 240 Semi-Open Studio Headphones

by AKG
| 78 answered questions

List Price: $159.00
Price: $69.53 & FREE Shipping. Details
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  • It has 55 ohms impedance, plug-in cable
  • Self-adjusting headband for optimum fit
  • Single cable for ease of use
  • Semi-open, circumaural design
  • It has 15hz to 25khz frequency range
54 new from $69.53 8 used from $48.75 2 refurbished from $67.00

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AKG K 240 Semi-Open Studio Headphones + Zalman Zm-Mic1 High Sensitivity Headphone Microphone
Price for both: $79.38

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This item: AKG K 240 Semi-Open Studio Headphones
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Color Black Sand Black Black
Special Features Dj-Style DJ-Style Whether you prefer the holistic approach or like to listen analytically, the K 701 will turn perception into pure enjoyment. AKG is the first manufacturer in the world to use revolutionary flat-wire technology in headphones, namely, the K 701. The result is a truly dramatic sound that places every musician at their correct location with pinpoint accuracy. This kind of agility, spaciousness, brilliant highs, and velvety, punchy bass is simply miraculous. These superlative open-back dynamic headph Dj-Style
Fit Over-Ear Over-Ear Over-Ear Over-Ear
Dimensions 6 inches x 6 inches x 9.2 inches 9.4 inches x 8.9 inches x 4.5 inches 0.01 inches x 0.01 inches x 0.01 inches 1 inches x 1 inches x 1 inches
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Product Description

Product Description

AKG K240 Studio Headphones feature a classic design that has become a standard in monitoring. This newer, lower impedance, 55-ohm version provides remarkably higher volume level when used with portable studios, keyboards, drum machines and other project studio gear. It's a professional level of performance for the home studio. Features include an integrated semi-open air design with a highly accurate dynamic transducer for naturally open sound quality, and circumaural (around-the-ear) pads for hours of wearing comfort. Frequency range: 15 Hz to 25,000 Hz. Stereo (1/8-inch minijack and 1/4-inch) connections. AKG K240 Studio Features: Low, 55 Ohm impedance, plug-in cable, Self-adjusting headband for optimum fit, Single cable for ease of use, Semi-open, circumaural design. AKG'S MOST POPULAR PROFESSIONAL HEADPHONE. A classic design which has become a standard in monitoring. Now with Varimotion XXL capsule for studio sound at home and for portable use. The 'integrated semi-open air' design incorporates a highly accurate dynamic transducer, and an acoustically tuned venting structure behind the element produces a naturally open sound quality. The circumaural (around-the-ear) pads are designed for hours of wearing comfort, while the steel-cable, self-adjusting headband construction and single-sided professional quality audio interconnect ensure extended reliability in demanding professional studio applications. Proven, popular, excellent - New, improved and even better. Made in China. The item includes the OFC screw type cable.

From the Manufacturer

The AKG K 240 Studio is an update of the "classic" AKG K 240 Monitor. The new K 240 Studio delivers even wider dynamic range and higher sensitivity than its well-known and widely-used predecessor. The secret to the semi-open K 240 Studio's sound quality is the new XXL transducers in acoustically tuned vented enclosures with circumaural (around the ear) pads. The circumaural pads envelope your ears nicely and reward you with smooth, solid bass and well-balanced, articulate mids and highs.

Founded in Vienna, Austria in 1947, AKG has built a legendary reputation in the professional audio industry for products that perform flawlessly. The reputation of AKG and its celebrated quality are built on more than 55 years of experience, incredible design, meticulous craftsmanship and a clear understanding of what truly sounds right. AKG introduced the K 140 in 1974 and the K 240 Monitor in 1975, which became the most widely used headphones in recording studios and broadcast facilities worldwide. Generations of musicians and audio engineers use these AKG products to create great mixes, hit songs and albums cherished by millions around the world. The new AKG Professional Studio headphones carry on the tradition of these audio tools and are a sound investment that will pay handsome returns with years of flawless sonic performance for professional recording engineers and demanding users of high quality home or portable audio equipment.

AKG K 240 Headphones
Delivers solid bass and well-balanced mids and highs
XXL Transducers with Varimotion Diaphragm

The new XXL transducers use AKG's patented Varimotion diaphragm to ensure extremely accurate response at any listening level. This technology creates a diaphragm that is thinner, more elastic toward the outside edges for more powerful bass response and thicker, less resonant in the center for pure, accurate mids and clear, detailed highs. The large size of the transducers makes the overall sound more life-like and three-dimensional to capture the emotional and sonic content of your soundtracks.

Gimbal-Type Suspension

To ensure your listening comfort, AKG Professional Studio headphones utilize a self-adjusting headband with a flexible steel structure to deliver optimum fit for your headphones without any fiddling. The structure is flexible, yet strong enough to allow bending for single ear use and is durable enough to withstand rough handling. A gimbal-type suspension ensures the earcups of all AKG Professional Studio models will conform to the shape and size of your ears without pressing on them for hours of fatigue-free, comfortable listening.

Wear Them As You Like

Rugged construction, a non-twisting headband, and powerful sound allow you to use your headphones on a single ear only or wear them in any other way you may prefer. AKG Professional Studio headphones are ideal for DJ and live sound use because they are durable enough to withstand the roughest kind of handling during transport or on stage.

Detachable Cable with Mini XLR Connector

The new AKG Professional Studio headphones utilize a detachable input cable for easy replacement if ever necessary. The cable and headphones use mini XLR connectors for perfect contact and secure mechanical connection. The cable is made of 99.99% oxygen-free copper and has gold plated plugs on both ends including the screw-on 1/8" to 1/4" stereo jack adapter for maximum signal transfer.

Perfect for Portable Audio

You need good quality audio for all your listening--including computer, minidisc, portable CD or DAT player--as well as in the studio. Owing to their high sensitivity and wide dynamic range, the AKG Professional Series headphones are efficient enough to be used with these lower level output sources and still deliver the high definition sound you need when working in the studio or on stage. The excellent workmanship AKG headphones are known for and high quality components ensure loss-free transmission and reproduction of high-resolution signals from all types of digital audio sources.

Product Details

Product Warranty: For warranty information about this product, please click here. [PDF]
  • Product Dimensions: 6 x 9.2 x 6 inches ; 9.6 ounces
  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B0001ARCFA
  • Item model number: AKG K240STU
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (604 customer reviews)
  • Amazon Best Sellers Rank: #224 in Musical Instruments (See Top 100 in Musical Instruments)
  • Product Warranty: For warranty information about this product, please click here. [PDF]
  • Date first available at Amazon.com: October 2, 2001

Customer Questions & Answers

Customer Reviews

4.4 out of 5 stars

Most Helpful Customer Reviews

188 of 207 people found the following review helpful By Jesse Knight on November 17, 2006
First, although K240 phones old and new surround your ears, they are vented. Ambient noise is not reduced greatly as a result, but this design improves sound quality.

I have used the 600 ohm K240M phones since 1986. The new K240S are 55 ohms making them far more compatible with todays lower voltage gear. Even better, this new design gives deep bass response that I never thought was possible from phones. Even a 32 foot bombarde pipe organ stop sounds quite real, although you will not feel the room shake. Listening to a signal generator through these new K240S phones gives an impression of powerful bass down to at least 40 Hz. The old K240M drops off below 100 Hz. A slight dip in the midrange(K240M) has been filled in, making the K240S more true sounding.

Both the new and old versions reproduce operatic voices without increased "ping" which can be very abrasive. Years ago I started using phones to judge voices on choral recordings, resorting to speakers only to judge the organ sound. Speakers can make some beautiful voices sound nasty. Producer John Culshaw documented this in one of his books on recording the Wagner Ring.

The open air design minimizes ear sweating while giving a more open perspective. "In your head" effects are greatly suppressed compared to many sealed type phones. When watching opera DVD I find no conflict between the phone perspective and the TV screen on DVD that are well mixed. Orchestral sound is excellent, as is piano. To my ears, these phones give a perspective and tonal balance that is very close to what I hear at Boston Symphony Hall, when I sit in the second balcony front. These seats overhang the stage.
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83 of 97 people found the following review helpful By Seppo Helava on May 7, 2007
I've had a pair of 240's for the last 8 years. About 2 years ago, I ran over the cable with my office chair, and basically ruined the headphones. I mended the cable, but they never really sounded right again.

So, I got a pair of Shure E40's, and they've been quite good. Yesterday, I finally realized that the jack on the AKG's was broken, not the wire. So, I replaced the jack, and for the first time in about two years, am using the headphones again.

The sound quality is leagues better than anything else I've used in the last two years. Better than the Shures, better than the Sennheisers I got through work. There's a huge amount of detail that I'd been missing with the other headphones. I'm not an audio professional, or even a hardcore audiophile, but I've been a musician since I was young, and have a good ear.

For the price, I haven't heard anything that even comes close to these headphones. Just watch the cord.
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42 of 50 people found the following review helpful By James Vaughn on January 30, 2008
Verified Purchase
Edit: 12/2012

I no longer recommend these headphones, I feel the sound and build quality have suffered since the move to building them in China. They are still a decent buy, and I can't recommend another semi-open in this price range, but the closed offerings in the bracket are MUCH better options in my opinion. I'm talking about the usual suspects the MDR-7506 and ATH-M50 are my two favorites.

----- Back to 2008 -----

These are considered the studio standard in circumaural open back headphones for good reason. The sound reproduction is excellent, with clear bass and midrange and a very balanced profile through the entire frequency spectrum. It makes me angry at how much I've spent on speakers and studio monitors, these do a better job at a fraction of the price.

They are circumaural they fit OVER your ears. I guess some people don't like that. I think they might change their mind if they tried these. If you're looking for a SUPRA-aural design look at the AKG K141

I find them extremely comfortable. I have literally forgotten I was wearing them more than once. The suspension system adjusts automagically and is excellent. At first I felt a little unsure about the security of the hold, I've been using these mostly as monitors while recording guitar and bass parts, but they've made it through some pretty enthusiastic headbanging without getting dislodged. It also prevents almost all the banging and noise you normally hear when handling your headphones.

The ear pads are soft and comfortable and have a nice synthetic cover which feels like glove leather and has just the right combination of grip and smoothness.

They are semi-open.
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41 of 49 people found the following review helpful By Diogo Casado on October 20, 2014
It's true that this headphone sounds good. The leather makes you sweat a little, but hold on to my review..

A major concern is that the manufacturing quality decreased over time. If you read all the reviews, you will see that just after they moved their production over to China from Austria, it's not the same anymore. Before buying, I've read all reviews and thought that the latest reviews were over reaction.

After less than 2 months of medium usage it broke a plastic part that attaches the elastic and the headband. So.. there is clearly a quality problem here.

Now what upsets me more is that the support is not very cooperative. They just ignored my request because I went overseas and the local support could not do anything about my problem since I didn't buy it in the same country.

I gotta tell you, It's disappointing. I wish they kept the price a little bit higher so that it could still be manufactured in Austria with good quality. But the support didn't change I guess.. so if you have problems, don't say I didn't warn you.
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AKG K 240 Semi-Open Studio Headphones
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