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IE 900

The purest, most natural sound.

$1,499.95Plus applicable sales tax – Free 2 Day Shipping

Experience peak German audio engineering

The precision-manufactured aluminum housing of the IE 900 faithfully protects the dynamic TrueResponse transducers at the heart of Sennheiser’s innovative X3R technology.


  • A new benchmark in portable sound reproduction
  • Developed in Germany and manufactured at our state-of-the-art Ireland plant
  • Helmholtz resonator chambers unmask critical audio details, even during extended listening sessions
  • Gold-plated Fidelity (+) MMCX connectors for improved stability
  • Adjustable ear hooks and choice of ear adapters including memory foam
  • THD: 0.05% (1 kHz, 94 dB)
  • Unrivalled precision & craftsmanship
  • X3R TrueResponse transducer technology for balanced sound with ultra-revealing detail
  • Precision-milled and anodized aluminum housing
  • Choice of para-aramid reinforced cables (2.5 mm, 3.5 mm, 4.4 mm)
  • Frequency response: 5 Hz - 48,000 Hz
  • Impedance: 18 ohms
IE 900 specifications
  • Sophisticated one-piece aluminum housing
  • 7 mm TrueResponse transducers
  • X3R Triple–resonator chamber technology
  • Treble detail and soundstage well suited for classical music
  • 2.5, 3.5 and 4.4-mm cable / MMCX connector
  • Premium carry case

Behind the scenes of the IE 900

How every detail matters to achieve the most coherent and detailed sound experience.

high-fidelity mobile listening IE 900 sennheiser

The IE 900 — goodbye to tradeoffs

The IE 900 reveals the true potential of any recording. If it’s a masterpiece, you’ll hear it. Brilliant, sparkling treble — with no trace of sibilance.

IE 900 Ear Bud

A new level of clarity

A single dynamic driver only — of the highest quality, of course.

IE 900 sennheiser
man hearing music with IE 900 and looking to the sunset

An acoustic back-volume establishes balance

To ensure accuracy across this critical frequency band, we’ve employed what is known as an acoustic back volume.

in ear headphones audiophile IE 900

The sound of manufacturing expertise

We build the IE 900 at our state-of-the-art audiophile manufacturing plant in Ireland.

Sennheiser’s IE 900 in-ear headphones

A precise fit for precise sound

We took the comfort and secure fit of these professional solutions as inspiration for the IE 900.

IE 900 premium in-ear headphones with outstanding sound

It pays to have good connections

In addition to outstanding sound, audiophiles appreciate durable products that are made to last. Here as well, the IE 900 excels.


Article number (SKU)
Transducer principle
dynamic, Extra Wide Band (XWB)
Transducer size
7 mm
Frequency response (speaker)
5 Hz - 48,000 Hz

What's included

  • IE 900 in-ear headphones
  • Balanced para-aramid reinforced cable with 2.5mm connector
  • Unbalanced para-aramid reinforced cable with 3.5mm connector
  • Balanced para-aramid reinforced cable with 4.4mm connector
  • 3 pairs of silicone ear adapters (S, M, L)
  • 3 pairs of foam ear adapters (S, M, L)
  • Premium carry case with metal serial no. plate
  • Cable clip, Cleaning tool & Cleaning cloth
  • Presentation box with signed customer certificate & User manuals



Accessories & spare parts

We are committed to the longevity of our products.

  • IE Series Ear Adapter Silicone (S)
    IE Series Ear Adapter Silicone (S)
  • IE Series Ear Adapter Silicone (M)
    IE Series Ear Adapter Silicone (M)
  • IE Series Ear Adapter Silicone (L)
    IE Series Ear Adapter Silicone (L)

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