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AKG K240 Studio

4.5/5.0By AudioProHome Team

The AKG K240 Studio is a true legend in the world of professional audio. First introduced in the 1970s, this iconic semi-open headphone has remained virtually unchanged for over four decades—not because AKG is lazy, but because the design is simply that good.

Walk into any recording studio, broadcast facility, or post-production house around the world, and you'll likely spot a pair of K240s hanging on the wall. They are the unsung heroes of mixing, mastering, and critical listening.

The Semi-Open Advantage: Natural Sound

Unlike fully closed-back headphones that can sound boxy, or fully open-back headphones that leak sound everywhere, the semi-open design of the K240 Studio strikes the perfect balance.

  • Wide, Airy Soundstage: The vented ear cups allow air to pass through, creating a natural, speaker-like listening experience. This gives you a much more realistic sense of stereo imaging and depth, crucial for making accurate panning and reverb decisions.
  • No Pressure Buildup: Your ears stay cool and comfortable during marathon editing sessions, podcast production, or audio mastering work.
  • Neutral Mid-Range: The K240 is famous for its honest, transparent mid-range. Vocals, guitars, and dialogue sit exactly where they should, without artificial coloration.

The Self-Adjusting Headband: Comfort Redefined

One of the most beloved features of the K240 is its self-adjusting headband. There are no size adjustments to fiddle with—just put them on, and the elastic suspension system automatically conforms to your head.

  • Even Pressure Distribution: No hot spots or uncomfortable clamping.
  • Lightweight Design: At just 240 grams, they are feather-light, making them ideal for all-day use.
  • Retro Aesthetic: The vintage look is functional and iconic, instantly recognizable in any studio setting.

The Trade-Off: Not for Tracking

Because of their semi-open design, the K240 Studio is not suitable for recording vocals or instruments. Sound leaks both in and out, which means:

  • Bleed: If you're wearing them while recording with a microphone, the sound from the headphones will be picked up by the mic.
  • Monitoring Only: Use them for mixing, mastering, editing, and critical listening—not for tracking.

Detachable Mini-XLR Cable: Professional Flexibility

The K240 Studio features a detachable mini-XLR cable, which is a huge advantage:

  • Easy Replacement: If the cable gets damaged, you can replace it cheaply without needing to replace the entire headphone.
  • Custom Cables: Audiophiles can upgrade to higher-quality or longer cables as needed.
  • Tangle-Free: The straight cable design prevents the annoying tangles of coiled cables.

Verdict: The Budget King of Semi-Open Monitoring

The AKG K240 Studio is the perfect entry point into semi-open headphone monitoring. For the price, there is simply nothing else on the market that offers this level of natural, neutral sound quality.

If you are a podcaster, YouTuber, music producer, or audio engineer looking for an affordable, reliable tool for mixing and critical listening, the K240 Studio is a no-brainer. It's a piece of audio history that still holds its own in the modern studio.

Frequently Asked Questions

Can I use these for recording vocals or instruments?

No, it is not recommended. Because they are semi-open, sound leaks both in and out. The backing track or click track will bleed into your microphone, ruining your recording. Use closed-back headphones for tracking.

Do they need a headphone amplifier?

Yes, they benefit from a decent headphone amp. With 55 Ohms impedance and relatively low sensitivity, they can sound quiet and underwhelming when plugged directly into a phone or laptop. A proper audio interface or headphone amp will make them shine.

What is the difference between semi-open and open-back?

Semi-open headphones like the K240 have partially vented ear cups, offering a balance between the isolation of closed-back and the natural sound of open-back. They leak less sound than fully open headphones but more than closed-back models.

Are these good for mixing music?

Yes, they are excellent for mixing, especially for checking mid-range clarity, vocal placement, and stereo imaging. However, they lack deep sub-bass extension, so you should cross-reference your low-end on studio monitors or closed-back headphones.

How do I replace the cable?

The cable uses a mini-XLR connector. You can purchase replacement cables from AKG or third-party manufacturers. Simply unplug the old cable and plug in the new one—no tools required.
AKG K240 Studio Review 2025 - AudioProHome