AKG K240 Studio

Semi-open professional studio headphones

Item #: 854K240SDO

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3 Reviews

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A compromise between closed and open headphones

AKG designed the K240 Studio headphones for recording musicians and engineers. Their semi-open design allows high frequencies to shimmer with just enough airiness while maintaining powerful bass response. It also keeps midrange response natural, so guitars and vocals sound like they're supposed to sound. These headphones are a great choice if you're outfitting a project studio or setting up a small home-recording rig for your computer.

Clean sound for the studio

AKG's patented Varimotion drivers deliver clear sound with extended dynamic range — that's useful during mixing, so you can accurately hear which frequencies or instruments need boosting or taming. Comfy earpads and a self-adjusting headband ensure you can keep at the mixing process until you're satisfied — not just until you're tired of wearing headphones. An extra-long detachable cable gives you freedom to move, while 1/4" and 1/8" plug options allow you to connect to pro and consumer gear, from mixing boards and interfaces to smartphones and stereos.

Product Highlights:

  • over-the-ear studio headphones
  • semi-open design combines airy highs of open headphones with powerful bass response of closed models
  • patented Varimotion 30mm dynamic drivers deliver accurate sound and extended dynamic range
  • 118" detachable cable
  • 1/8" miniplug connector with screw-on 1/4" adapter
  • frequency response: 15-25,000 Hz
  • sensitivity: 104 dB
  • impedance: 55 ohms
  • weight: 8.5 oz.
  • warranty: 2 years
  • Our 60-day money-back guarantee

Hands-on research

What's in the box?

  • Studio headphones
  • 39" Headphone cable
  • 1/8 to 1/4" headphone adapter

Features and Specs

Fit Style Over-the-ear
Earcup Type Semi-open
Noise-canceling No
Bluetooth No
Frequency Response 15-25k Hz
Sensitivity 104 dB
Impedance 55 Ohms
Weight 8.5 ounces
Cord Length 118"
Airline Adapter Included No
iPod Control No
Volume Control No
Built-in Microphone No
Parts Warranty 2 Years
Labor Warranty 2 Years

Product Research


Over-Ear Design: The K240 Studio professional over-ear studio headphones are designed for professional applications such as mixing, mastering and playback. The over-ear pads envelop the ears nicely making them extremely comfortable to wear. The self-adjusting headband provides you with an optimum fit.

Semi-Open Technology: The K240's semi-open design provides a solid bass range and extremely clear highs.

Patented Varimotion XXL Transducer: The advanced 30mm XXL transducers with Varimotion diaphragms deliver a wide dynamic range, increased sensitivity and high sound levels.

Single-Sided Cable: The K240 Studio features a professional mini XLR connector, allowing for quick replacement of the single-sided 39" headphone cable. The included cable provides a convertible jack plug for easily connecting equipment with a 1/4" or 1/8" headphone jack.

Our Product Research Team

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AKG K240 Studio Reviews

Average Customer Review:

3 reviews
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AKG K240 Studio

Written By Simon V., New York on Saturday, January 10, 2015

Crutchfield Customer Review (What's this?)

I had this headphones for many years and cable just got damaged. I was so happy that they still available, so I ordered it again. I totally satisfied with the sound and the way they sitting on head you ears are inside! - you do not filing a pressure when wearing them for a long time.

Pros: Good sound, comfortable, at very good price.

Cons: None

Awesome phones

Written By JimG, Collingdale, PA on Sunday, April 27, 2014

Crutchfield Customer Review (What's this?)

Great headphones for the money. Good fit, great sound reproduction, blocks out outside sounds adequately.

Pros: Excellent value

Cons: None

Nice, but not exceptional

Written By BDunham, Upland, CA on Thursday, April 24, 2014

Crutchfield Customer Review (What's this?)

The look nice, the cord has a dual 3.5mm/.250" jack with a nice gold-plated threaded adapter (best setup I've seen yet for this) and a mini-XLR on the left can only. Comfortable, even on my big head. They don't quite look "pro"--maybe low-end pro.

Sound is good, even, possibly a little bass-shy, but warm, even, not boomy. You will hear everything there is in a recording, the only issue is whether you hear it properly balanced. I used boost at 31.5/60/1000 and 8000 hz, cut at 125 and 2000 and I think it was better. If I listen on something where this is not possible, they still sound pretty good. It is difficult to drive them to a loud level (they are 55 ohms and apparently not that efficient), my Zenbook with Bang&Olufsen ICE amps and my Marantz 7008 are able to drive them OK, everything else comes up a bit short for full volume.

Overall decent headphones, well worth the money. Keep in mind these are open-back, so they don't insulate sound in either direction. They sound more like closed phones, unlike some open sets that really feel "open". This is because the are truly over-the-ear an have a big pad that seals pretty close at your skull.

Pros: Good, even, complete sound at very good price.

Cons: Audiophile Grade "B" at best, appear to be made OK, but not exceptionally well.