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Sennheiser IE 900Recommended1 / 8
Sennheiser

Sennheiser IE 900

This set of IEMs costs more than your phone, and maybe your computer, but at least it'll never become obsolete.

Current price · Amazon US
$1,699.95
Check Price on Amazon

Price last checked 18h ago

Key specs

Material Chassis Primary
Aluminum
Resin31%Plastic24%Aluminum16%Metal16%

Aluminum appears on 16% of the 49 in-ear monitors we've cataloged (of 39).

Connection Type
Wired-3.5mmMost common
Wired-3.5mm92%Bluetooth8%

Wired-3.5mm is the most common — on 92% of the 38 in-ear monitors we've cataloged (of 39).

Ear Tip Material
Silicone, foamMost common
Silicone63%Memory foam21%Foam12%Others4%

Foam is the most common — on 12% of the 52 in-ear monitors we've cataloged (of 39).

Has Microphone
NoMost common
False68%True32%

False is the most common — on 68% of the 34 in-ear monitors we've cataloged (of 39).

Build

Material Chassis Primary
Aluminum

Connectivity

Connection Type
Wired-3.5mm
Cable Type
MMCX detachable, 3.5mm single-ended, 2.5mm balanced, 4.4mm balanced

Design

Ear Tip Material
Silicone, foam
Ear Tip Sizes Included
S, M, L
Earbud Form Factor
In-ear
Detachable Cable
Yes
Wearing Style
Over-ear (cable up)

Microphone

Has Microphone
No

Sound

Driver Size
7 mm
Driver Count
1
Driver Type
Dynamic
Frequency Response
5-48000 Hz
Frequency Response High Hz
48000 Hz
Frequency Response Low Hz
5 Hz
Frequency Response Signature
U-shaped
Impedance
18 Ω

Features

Inline Controls
No

Identity

Model Number
IE 900

Release

Date
2021-06-01
Msrp Usd
1299 USD
Year
2021

Lab data

How we test ›

Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.

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Sennheiser IE 900SoundGuys Headphone Preference Curve
Measured frequency response (dB relative) against the SoundGuys Headphone Preference Curve. When the measurement goes above the dashed line, that frequency is louder than our preference curve, and when it goes below: it's quieter. Use the curve for comparison purposes only, as your taste may vary.-20-100+10+20201001k10k20k

Measured frequency response (dB relative) against the SoundGuys Headphone Preference Curve. When the measurement goes above the dashed line, that frequency is louder than our preference curve, and when it goes below: it's quieter. Use the curve for comparison purposes only, as your taste may vary.

Sennheiser IE 900: frequency response, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)Response (dB)
204.8
254.8
324.6
404.2
503.7
632.9
802.0
1001.0
1250.0
160-1.1
200-2.1
250-2.7
315-2.7
400-3.4
500-3.8
630-3.0
800-1.9
10000.1
12502.1
16003.9
20004.2
25003.3
31501.7
40001.1
50003.7
63002.8
80003.9
100002.5
125001.3
16000-9.0
20000-25.3

SoundGuys review

Read the full review ›
SOUNDGUYS rating
6.9/ 10
Worth a look
Jasper Lastoria
Reviewed byJasper LastoriaWriterReviewed July 2023
Isolation8.9
Comfort & fit8.0
Connectivity6.5
Design9.0
Portability4.5
Features6.0
The verdict

Sennheiser really nails it on excellent isolation, proving that you don't need apps and noise cancellation to quiet the world. In a highly digital world, the aluminum housing reminds us that humans still like nicely made objects. The in-ear monitors provide great sound quality, but one wonders if the IE 900 is merely an exercise in prestige or actually worth the price.

✓What we like
✓Excellent sound quality
✓Build quality
✓Detachable cables
✕What could be better
✕Price
✕Sound is highly fit dependent
Read the full SoundGuys review →

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