Experience sonic perfection with the Sennheiser IE 900, the pinnacle of in-ear audio engineering. Designed and handcrafted in Germany, the IE 900 features a refined 7mm TrueResponse dynamic driver paired with Sennheiser’s unique X3R triple-chamber resonator system to deliver ultra-precise, distortion-free sound across the entire frequency range.
Crafted from precision-milled aluminum and bundled with three premium cables (3.5mm, 2.5mm balanced, and 4.4mm balanced), the IE 900 is engineered for audiophiles seeking unmatched clarity, detail, and durability.
Key Features
X3R TrueResponse Driver System Features three Helmholtz chambers and an acoustic vortex to neutralize resonant peaks and reveal every musical nuance.
Precision-Milled Aluminum Housing Five-axis CNC-machined from a single aluminum block, anodized for durability—three times stronger than steel in relation to weight.
Wide Frequency Range Covers 5 Hz–48 kHz with ultra-low THD (<0.05%), offering clean bass and shimmering treble without harshness
Premium Cable Options Includes oxygen-free copper para-aramid cables with gold‑plated Fidelity+ MMCX connectors, and three terminations—3.5 mm, 2.5 mm balanced, and 4.4 mm balanced.
Ergonomic & Lightweight Each bud weighs just ~4 g; memory wire ear hooks and multiple ear tip options (silicone & foam) support secure, fatigue-free listening.
Included Accessories
IE 900 in-ear monitors
Three premium cables (3.5 mm, 2.5 mm, 4.4 mm)
Three pairs each of silicone and foam tips (S/M/L)
Metal-plate zippered carry case
Cable clip, cleaning tool & cloth
Presentation box with serial-numbered nameplate
Authenticity certificate and 2-year warranty
Sound Profile
Bass: Tight, articulate, and powerful—anchored yet nimble
