At first glance, there is not much difference between two wired pairs of headphones Audio-Technica ATH-M30x vs AKG K240 STUDIO. They both are over-ear. But let's take a closer look and we will see that the first device is closed back, while the second one is semi-open.
If you are an audiophile or you simply like to have a good quality of sound, you must pay attention to sensitivity. The model Audio-Technica ATH-M30x has 96 dB and the headphones AKG K240 STUDIO — 104 dB. When it comes to impedance, the product of Audio-Technica has 47 Ohm, while the other one has 55 Ohm. The frequency response is wider in the case with AKG K240 STUDIO as this appliance works in a range of 15 Hz - 25 kHz.
Audio-Technica ATH-M30x headphones provide a detailed and rich sound with a perfect amount of bass and tend to provide decent external isolation. Also, you will feel a strong mid-range definition.
Speaking of AKG K240 STUDIO, the device has highly accurate and incredibly clear sound reproduction. The highs are incredibly crisp and the mids remain crystal clear and very detailed.
The difference in their weight is quite small since Audio-Technica ATH-M30x weighs 220 g and AKG K240 STUDIO has 240 g. The detachable cable that you get with these devices is 300cm long. Consider that you will not get a carry case with any of them.
There is no microphone or built-in buttons whatever headphones you buy. But the ones made by Audio-Technica are foldable which is a great advantage. Also, they have a convenient single-side cable exit.
The Audio-Technica ATH-M30x is better headphones in this comparison. Check Audio-Technica ATH-M30x price