Andrea Azzola

Tips and Techniques for Lifestyle Design

Sennheiser HD 25-II headphones review

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What you get

  • Headphones
  • Bag
  • Replacement ear pads
  • Adapter to 6.3 mm stereo jack plug

My impressions

I first heard about this model from a professional producer a while ago. Although Sennheiser is one of the most renowned headphone manifacturers, competition was high and so the offer. Since I was a beginner I took the advice. Lots of years have passed since then, and they're still one of the best DJ/producer headphone you can get. Mine doesn't have a single scratch, although they had a pretty 'intense' life.

So, here are the pros and cons I found after this prolonged use of 'stress testing':


  • Comfortable and lightweight, I've been able to use them for hours
  • Mostly flat response
  • Great sound quality is great at any volume
  • Simple, classic, unmistakable
  • Solid like a tank
  • Low impedance, they're good for almost any MP3 player.


Price is a little high, no doubt, still, they're worth the premium.

Technical Specifications:

  • Nominal impedance: 70 Ohm
  • Load rating: 0.2 W
  • Contact pressure: ca. 2.5 N
  • Weight w/o cable: ca. 140 g
  • Jack plug: 3,5/6,3 mm stereo
  • Transducer principle: dynamic, closed
  • Ear coupling: supraaural
  • Cable length: 1,5 m
  • Sound pressure level (SPL): 120 dB(SPL)
  • THD, total harmonic distortion: < 0,3 %
  • Frequency response (headphones): 16.....22000 Hz


Great headphones for djs, producers and studio monitoring.

Categories: Gears