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IE 900
IE 900
IE 900

IE 900

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Article number: 508949

The new IE 900 from Sennheiser sets a new benchmark in portable audio fidelity through technical innovation, meticulous attention to detail, and an uncompromising demand for perfection.

The IE 900’s acoustic design ensures brilliant, natural high-end sound reproduction. It features a refined version of Sennheiser’s 7mm audiophile Extra Wide Band (XWB) transducer system, engineered to tighter tolerances and expertly tuned for even greater fidelity, and a unique triple-chamber absorber (T3CA) system. These advances produce high dynamics in a precise and controlled manner, so music stays distortion free and extremely transparent at any listening volume.

The IE 900 is manufactured by a specialist team at Sennheiser’s headquarters in Germany to the highest production standards in the audio industry, ensuring exceptional lasting quality.


  • High-fidelity earphones with German-made 7mm XWB transducer -for natural, balanced sound and high noise-isolation
  • Unique triple-chamber absorber (T3CA) system to remove masking resonances for a refined and extended treble
  • Newly developed membrane foil for minimized natural resonances and distortion
  • Choice of 3.5mm unbalanced and 2.5/4.4mm balanced connectivity cables with gold plated MMCX-connectors
  • Selection of silicone and memory foam ear adaptors in 3 sizes (S/M/L) and adjustable ear hooks to ensure an optimal fit
  • Impedance: 16 ohms
  • Frequency response: 5 Hz – 48,000 Hz
  • THD : 0,05% (94 dB, 1kHz)
  • Premium carry case with metal serial no. plate
  • Presentation box with signed customer certificate
  • Designed, engineered and made in Germany

Customer Reviews

Based on 37 reviews
Pavel K.
Great earphones!

I own ie300 and wanted to upgrade to the best Sennheiser can offer today. Well, I'm very impressed! Everything about the ie900 is amazing. Looking forward to get the custom comfort eartips in the US to reach the audio-nirvana :)

Rebecca P.
Glorious sound

Long time, loyal Sennheiser customer. I own many different models of ie phones. The ie 900s are the epitome of fine listening. I currently am using them on everything from Pink Floyd to Mark Knofler to Doobie Brothers to U2, the Doors, and many more. My running experience is blissful when I pair the workout with good music heard through my Sennheiser ie 900s.

Evgeny F.

Great IE900 sound.Great Sennheiser!!Great service!!!

Kuiliang Li
Single Driver's Undeniably success

One of the best single dynamic drivers in the market. I've been using a lot of other multi-driver unit including hybrid and BA and ES. IE900, after being an IE800s and IE800 user, has taught me again that the level of "completeness" and the "seamless" transition between highs and lows prooves the unshaken place of single dynamic driver IEM's. IE900 has again improved from the IE800s, bringing the lows even more accurate while increasing the clarity of the mids and highs again. Fantastic product.


Very detaieled natural sound in a different league to mass market ear buds

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