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Sennheiser IE 900 · Photo source

Sennheiser IE 900
Photo 1 of 7

Sennheiser IE 900 · Photo source

Sennheiser

IE 900

Released June 2021

The IE 900 are Sennheiser's flagship wired in-ear monitors with a 7 mm X3R dynamic driver in milled aluminium housings, suited to listeners who want detail from a single-driver design.

Type
In-ear
Noise cancelling
No
Battery
–
With case
–
Best codec
Wired
Weight
4 g

What reviewers say

Reviewers agree the earphones sound detailed, clear and refined, stay comfortable for hours and come well equipped. What Hi-Fi? found the cable carries noise, missed an in-line remote and said a good source is needed to justify the price; Headfonia described an energetic tuning that suits some tastes more than others, and SECRETS found some ears need third-party tips.

From whathifi.com, headfonia.com and hometheaterhifi.com

Specifications

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Sound

Type
In-ear
Noise cancelling
No
Driver size
7 mm
Impedance
18 ohms
Bluetooth codecs
None (wired)
Drivers
7 mm X3R TrueResponse Extra Wide Band (XWB) dynamic driver with a triple-chamber absorber (Helmholtz resonators); 5 – 48,000 Hz; 123 dB SPL at 1 kHz (1 Vrms); THD < 0.05% (1 kHz, 94 dB); diffuse-field equalised

Battery

Listening time (maker's claim)
No battery (wired)

Design

Weight (each earbud)
4 g
Headphone cable
Yes
Fit and ear tips
In-ear, closed; about 26 dB passive attenuation; adjustable TPU-coated ear hooks; silicone and memory-foam tips; aluminium housings milled in Germany
Works with
Gold-plated Fidelity (+) MMCX connectors; para-aramid reinforced OFC cables (about 1.25 m) with 3.5 mm unbalanced, 2.5 mm balanced or 4.4 mm balanced plugs
In the box
IE 900 earphones, 3.5 mm, 2.5 mm and 4.4 mm cables, silicone and foam ear tips, carry case

Pros and cons

Pros

  • 5 Hz to 48 kHz from one 7 mm X3R TrueResponse driver
  • 3.5 mm, 2.5 mm balanced and 4.4 mm balanced MMCX cables included
  • Light at about 4 g per earphone

Cons

  • Wired only; no Bluetooth option
  • Costs twice as much as the IE 600

Closest rivals

Model
TypeNoise cancellingBatteryWith caseBest codecWeightReleased
beyerdynamicXelento remote (2nd generation)
In-earNo––Wired–Oct 2022
SennheiserIE 100 PRO
In-earNo––Wired–Mar 2021
SennheiserIE 300
In-earNo––Wired4 gJan 2021

Sources

  1. uk.sennheiser-hearing.com/products/ie-900
  2. cdn.sennheiser-hearing.com/product-documents/product-downloads/ie-900/instructi…
  3. newsroom.sennheiser.com/sennheisers-new-ie-900-flagship-audiophile-earphones-se…

Photo: cdn.shopify.com

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