AKG Acoustics K 240 DF On-Ear Headphones

4.2/5 (10 Reviews)


Product Description

The K 240 DF follows the criteria specified by the Institute of Radio Technology (IRT) in Munich for a ""diffuse field"" equalization curve that provides headphone listeners with the sound pattern, characteristic of a room with reflective, non-anechoic surfaces. Each K 240 DF is rigorously tested to assure strict adherence to the IRT standards for frequency response, channel separation and sensitivity.


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User Reviews

Overall Rating:5
Value Rating:5
Submitted by AuralGasmic a AudioPhile

Date Reviewed: January 25, 2011

Bottom Line:   
AKG K 240DF: I bought them thirty years ago and it was not until yesterday that I actually heard them amplified to their full potential. What an astounding difference proper headphone amplification makes. The "MONITOR" section of my PEAVEY XR 600G powered mixer amp was designed by an engineer who knew what he was doing. I turned the gain all the way up and detected not the slightest hint of distortion. And yes, that volume level heard through just about any other headphones would sound absolutely horrible and would destroy most headphones in little time. Now I can hear the clear difference between all of the other headphones I've owned or listened to music through over the past thirty years. The K240DFs do exactly what they were designed and engineered to do-sound like pro recording studio reference monitors instead of headphones. -Bradley Hajost/Owner-SONIC Promotions & AuralGasmic Productions, SPI>SONIC Performance Instruments

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Used product for:   More than 1 year

Duration Product Used:   AudioPhile

Product model year:   Pre 1995



Overall Rating:4
Value Rating:5
Submitted by Sean a AudioPhile

Date Reviewed: August 22, 2010

Bottom Line:   
I've had these for, geez- could it be 20 years?! These are not to be confused with the 240M which is very similar except for having too mucn midrange.

I bought these slightly used, and except for the little metal caps falling off they still work perfect; no bad connection in the cord/plug, earpads are still intact and soft, headband and everything else still fine.

The sound is so balanced that I find fault with every other headphone I've listened to with the exception of my Stax. And sometimes I even perfer them to the Stax; they sound just a little more natural.

So my advice is you have to try them - if you're lucky enough to find a paid.

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Used product for:   More than 1 year

Duration Product Used:   AudioPhile



Overall Rating:4
Value Rating:3
Submitted by zappertje a AudioPhile

Date Reviewed: March 14, 2003

Bottom Line:   
I bought the 240DF after listening to some other headphones. Long time ago. I use it frequently and it still serves, no broken cable. I was pleased by the disctiction that you can make between instruments, listening with this headphone. With others the sound is more fuzzy. A lack of bass is not true, it is just that other headphones have a coloured bass.
Now I use it when editing audio recordings from live-performances of choirs and small classic groups.
Also for restoration of audio (vinyl and tape to cd) this is the choice. You will hear every small scratch, noise and will be able to adjust your software to filter these.
If you want just sit back and listen to easylistening music, you can better buy a cheaper one. But if you want to listen in a technical-critical way to music, this one is THE choice!

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Used product for:   More than 1 year

Duration Product Used:   AudioPhile

Product model year:   Pre 1995



Overall Rating:4
Value Rating:2
Submitted by Dan the DJ a AudioPhile

Date Reviewed: August 29, 2002

Bottom Line:   
For clarity these Cans are great. The only problem is, make sure the Studio Console or Amp can "Push" them BEFORE you buy them. The Broadcast Console here at the Radio Station WILL NOT push them properly (good thing we're getting a new Board soon. On the otherhand, I'll take them home to my Studio, and pluging into my dedicated amp, they sound Great! With the exception of (as many have said) Serious lack of "Low-end". When you have a low "Announcer" voice, with voice-work to do, It's hard to judge the outcome of the bass in-voice until you "Playback".

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Used product for:   More than 1 year

Duration Product Used:   AudioPhile

Product model year:   1995

Price Paid:    $120.00

Purchased At:   head room



Overall Rating:5
Value Rating:4
Submitted by Mick Brown a AudioPhile

Date Reviewed: June 7, 2002

Bottom Line:   
Great headphones. When seeking reviews, I couldn't help but find some of these reviews about the headphones lacking bass, lacking this or that. Let me give you an analogy, before I proceed. If you buy a product that says, "uses 4 D Alkaline batteries" and then proceed to put 4 non-alkalines or perhaps try to rig it with AA's, then you're not going to get the performance you expect because you didn't follow factory specs and recommendations.

Now, these are 600 ohm headphones. They're designed to be plugged into boards and powered equipment in the studio where high power and headroom is the standard, not a consumer choice. These are not designed as portable consumer audio gear, and the colorful picture in my mind of some of you rollerblading around with K240DF's on your head provokes a little giggle in me even though I largely feel contempt for your reviews. This is not an audiophile's headphone, in the customary definition of the term.

This headphone has a single focus, as noted by the non-anechoic diffuse field specs referenced on the specs. Simply put, they're designed to allow the listener to monitor and mix music in a studio or recording environment where you don't have access or cannot/will not use nearfield monitors, or any other monitoring system, for that matter. If used in a good board, or a high-end dedicated amplifier designed to push 600 ohms or better (within reason), you can get incredibly accurate mixes without having to depend on monitors that would be subject to room dimensions, acoustics, etc.

. . . A non-anechoic environment, as noted on the specs, actually is designed to provide optimum acoustics as you would hear when listening to music or source material in a desirable room with great acoustics. See the purpose now?

Now get off those rollerblades before you hurt someone - that car horn might sound funny in a non-anechoic listening environment right before the car hits you. Geez. C'mon people.

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Used product for:   1 to 3 months

Duration Product Used:   AudioPhile

Product model year:   2001

Price Paid:    $125.00

Purchased At:   n/a




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