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Model: IE 900by Sennheiser

Report data.
Single Dyn. Driver
1DD 
  • 1 x Dynamic Driver
$$$$$
Score
7.3
made in germany
Release Date Not Available

Introduction

IEM Description

The Sennheiser IE 900 is a high-end, handcrafted in-ear monitor offering exceptional sound clarity, deep bass, and an expansive soundstage. It features premium build quality with aluminum housings and integrates advanced technologies like a refined XWB driver and a triple-chamber absorber system to preserve fine sound details and spatial realism. Designed for audiophile listening on the go, it's ideal for use with portable DACs on laptops or phones.

The driver configuration is Single Dyn. Driver. It consists of 1 Dynamic Driver.

Brand Information

Founded in Germany in 1945, this family-owned company has become a leading manufacturer of professional audio equipment and consumer electronics. Sennheiser's expertise spans microphones, headphones, and earphones, with a focus on delivering high-quality sound and innovative products.

Technical/Other Specifications

Drivers
Driver TypesSingle 7 mm TrueResponse dynamic driver (X3R technology, triple‑chamber absorber)
Audio Performance
Sensitivity123 db/mW
Frequency Response5 Hz – 48 kHz (–10 dB)
Impedance16 Ω
Build & Design
ShellCNC‑milled aluminum alloy (one‑piece)
Weight4 g
CustomizableNo
Cable
CablePara‑aramid‑reinforced OFC with memory‑wire ear hooks
ConnectorsMMCX
Cable Length1.25 m
Accessories
EartipsSilicone & memory‑foam tips (S/M/L); adjustable ear hooks

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Highlevel & Tierlist

Overall, Packaging & Quality

This section offers a broad look at the general quality, packaging, and everyday usability of the IEM—beyond just the sound. From build integrity and comfort to cable quality and included accessories, each aspect is carefully rated to help you understand the overall experience. Whether you're a casual listener or a gear enthusiast, this overview gives insight into what it’s like to unbox, wear, and live with the IEM on a daily basis. Think of it as the foundation before we dive deeper into performance.

Sound
9.0 / 10
Comfort Fit
7.0 / 10
Build Quality
10.0 / 10
Stock Cable
8.0 / 10
Accessories
8.0 / 10

Tier List

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Sound Characteristics

Ratings sound, tonal signature & target group

This section dives into how the IEM sounds — not just in technical terms, but also in how it feels to the listener. Ratings here reflect detailed impressions across a wide range of sonic aspects, from sub-bass rumble to treble sparkle, from note weight to soundstage width. In addition, the Tonal Signature slider helps visualize the IEM’s position between opposing characteristics like dark vs. bright or smooth vs. crisp — giving a quick feel for its personality. Lastly, the Target Group graph shows who this IEM is best suited for: bassheads, treble lovers, vocal fans, or those seeking balance. Combined with genre recommendations, this section helps you understand whether the IEM fits your taste — before you even hit play.

Sound Analysis

The sub-bass is natural yet natural, adding just the right amount of depth. Basslines feel organic and defined, supporting the overall tone. There’s a harmonious sense of pressure in the low-end. Midrange fundamentals stay gentle and clean. The upper mids are precise and strong, ensuring vocals cut through the mix. A glittery lower treble injects air and brilliance. Upper treble is glittery and precise, adding shimmer and air. The soundstage is broad, placing instruments far across the field. Detail retrieval is focused and authoritative, highlighting subtle nuances. Instruments are well-defined with authoritative placement across the soundstage. The mix stays transparent even with overlapping elements. Weight feels even, neither too light nor too dense. Punch is moderate and well-controlled. Sibilance is cohesive and rarely distracting. Acoustic tones sound organic and lifelike. Tonality is even and blended, enjoyable across genres. The sound has a grainy realism that reveals inner detail.

The sub-bass is natural yet natural, adding just the right amount of depth. Basslines feel organic and defined, supporting the overall tone. There’s a harmonious sense of pressure in the low-end. Midrange fundamentals stay gentle and clean. The upper mids are precise and strong, ensuring vocals cut through the mix. A glittery lower treble injects air and brilliance. Upper treble is glittery and precise, adding shimmer and air. The soundstage is broad, placing instruments far across the field. Detail retrieval is focused and authoritative, highlighting subtle nuances. Instruments are well-defined with authoritative placement across the soundstage. The mix stays transparent even with overlapping elements. Weight feels even, neither too light nor too dense. Punch is moderate and well-controlled. Sibilance is cohesive and rarely distracting. Acoustic tones sound organic and lifelike. Tonality is even and blended, enjoyable across genres. The sound has a grainy realism that reveals inner detail.

Sound Characteristics

Tonal Signature

DARK
BRIGHT
WARM
NEUTRAL
SOFT
ANALYTICAL
SMOOTH
CRISP
RELAXED
ENGAGING
MUSICAL
DRY

Target Group

BASSMIDSTREBLE

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