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AKG K 240 semi-open studio headphones, circumaural pads, self-adjusting headband, single cable

AKG ACOUSTICS

AKG ACOUSTICS K 240 Semi-Open Studio Headphones

SKU CH-947G-33R8D

Semi-open circumaural studio headphones with 55 ohm impedance, self-adjusting headband and 15 Hz to 25,000 Hz frequency range

  • TypeIn-Ear
  • Semi-open design delivers naturally open sound
  • 55-ohm impedance gives higher volume with portable gear
  • Circumaural pads ensure comfort during long sessions
  • Self-adjusting headband provides an optimum fit
  • Frequency range 15 Hz to 25,000 Hz captures full audio detail

Studio monitoring headphones

The AKG K 240 is a semi-open circumaural headphone built for studio monitoring and home recording. Its 55 ohm impedance allows higher volume levels with portable studios, keyboards and drum machines without requiring a dedicated amplifier. The self-adjusting headband and around-ear pads are designed for comfort during long sessions.

Semi-open acoustic design

The semi-open construction lets air move through the ear cups, producing a naturally open sound character that avoids the pressure build-up of fully closed models. A single detachable cable reduces clutter and can be replaced if damaged. The dynamic transducer covers a frequency range of 15 Hz to 25,000 Hz for detailed monitoring.

Sustained listening sessions

The circumaural pads distribute weight around the ears rather than on them, reducing fatigue over hours of use. Semi-open acoustics prevent the heat and pressure accumulation common with closed-back designs during extended mixing or tracking. The low impedance maintains consistent drive levels from portable interfaces throughout a full work session.

Highlights

  • Semi-open design delivers naturally open sound
  • 55-ohm impedance gives higher volume with portable gear
  • Circumaural pads ensure comfort during long sessions
  • Self-adjusting headband provides an optimum fit
  • Frequency range 15 Hz to 25,000 Hz captures full audio detail

Specifications

BrandAKG
TypeIn-Ear

Questions about this item

How do I connect the AKG K 240 headphones to my audio interface and which plug should I use first?

Plug the attached cable into the headphones, then use the 1/4-inch adapter for professional gear or the 1/8-inch minijack for portable devices; the semi-open design needs no power.

Which parts of the AKG K 240 will wear out first and need replacement?

The circumaural ear pads and self-adjusting headband padding are the main wear items; the plug-in cable can also be swapped if the connector fails.

At what volume level does the 55-ohm impedance start to limit output with portable sources?

The low 55-ohm impedance delivers higher volume from portable studios and keyboards, so the source device’s maximum output is usually reached before the headphones distort.

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