Sennheiser IE900 In-Ear Headphones
High-fidelity recordings are pieces of art. Just as with a valuable painting, it would be a disgrace to allow damage during transport. The IE 900 reveals the true potential of any recording. If it’s a masterpiece, you’ll hear it. Brilliant, sparkling treble — with no trace of sibilance. Powerful lows without creating muddy mids. An uncanny ability to resolve fine detail — alongside warmth and comfort for extended sessions.
All these qualities derive from inspired feats of engineering. Take Sennheiser’s trusted 7 mm transducer, for instance. They’ve made it just that much better for the IE 900. Or the all-new X3R triple-chamber absorber technology milled right into the solid aluminium core with its downstream acoustic vortex. Taken together, these innovations deliver a unique level of balance and transparency — so you never have to compromise again.
Considerable effort goes into capturing the finest nuances of a musical performance. Re-living the creativity and texture recorded in the studio or concert hall can be a source of great pleasure. But only if the listener’s playback equipment allows. The German-engineered and manufactured TrueResponse driver ensures exceptionally natural reproduction. A large part of its very precise transient response comes from the unique combination of materials in the diaphragm together with its high inner dampening. So when the signal stops, the sound stops too. This is how the IE 900 can reveal details in tracks you thought you knew inside out.
But the only thing that counts is what you, the listener, hear. The tonality of each instrument becomes clearly audible. And it’s not just the skills of the musicians that the IE 900 reveals. Even the acoustic properties of the room gain a new presence. Instead of remaining on the surface, you can now dive deep into complex passages — all while immersed in a breath taking sound stage.
In developing the IE 900, Sennheiser faced a fundamental choice. The inherent compromises multi-driver systems require (phase issues and the resulting distortion in overlapping frequency bands) made the decision easy. There would be a single dynamic driver only — of the highest quality, of course.
To get exactly the sound they were looking for, they designed a sophisticated system of three Helmholtz resonators — the X3R. It’s milled right into the solid aluminium housing of each earphone. These tiny channels eliminate resonance peaks which, in less advanced products, can colour the sound signature and alter the feel of your music. In addition, a complex structure in the nozzle of each earphone — the Vortex — swirls acoustic energy in these frequency bands to smooth out peaks.
In addition to outstanding sound, audiophiles appreciate durable products that are made to last. Here as well, the IE 900 excels.
Gold-plated Fidelity+ MMCX connectors ensure perfect contact. Each termination is seated within a recessed, 4.8 mm-wide socket below the surface of the housing, providing strain relief. The cables themselves are para-aramid reinforced to withstand many thousands of bend cycles. But they don’t have to when protected in the included serialized case.
Connect to practically any digital audio source with the 3.5 mm stereo plug including headphone amps, laptops, and audio interfaces. Each pair of IE 900s also includes symmetrical 2.5 mm and 4.4 mm cables for plugging directly into hi-fi components with balanced outputs. Because when you’re looking for the most natural and immersive sound, every detail matters.
Features
New benchmark in portable audio
Ultimate precision & craftsmanship
Made in Germany
X3R technology: TrueResponse transducer combined with three Helmholtz resonator chambers and acoustic vortex
Precision-milled and anodized aluminium housing
Hand-assembled at Sennheiser´s headquarters
Gold-plated Fidelity (+) MMCX connectors for improved stability
Choice of para-aramid reinforced cables (2.5 mm, 3.5 mm, 4.4 mm)
Adjustable ear hooks and choice of ear adapters including memory foam
What's in the box?
IE 900 in-ear headphones
Balanced para-aramid reinforced cable with 2.5mm connector
Unbalanced para-aramid reinforced cable with 3.5mm connector
Balanced para-aramid reinforced cable with 4.4mm connector
3 pairs of silicone ear adapters (S, M, L)
3 pairs of foam ear adapters (S, M, L)
Premium carry case with metal serial no. plate
Cable clip, Cleaning tool & Cleaning cloth
Presentation box with signed customer certificate & User manuals
Impedance: 16 Ohms
Sound pressure level (SPL): 123 dB (1 kHz, 1 Vrms)
THD, total harmonic distortion: <0.05% (94 dB, 1 kHz)
Cable length: 125 cm
Transducer principle: single dynamic driver, pressure chamber
Weight: 4 g
Technology: unique X3R technology
Housing: One-piece precision-milled aluminum housing
Warranty: global 2-year warranty
Connector: Fidelity (+) MMCX
Ear coupling; Ear canal
Frequency response; 5 Hz – 48,000 Hz (-10 dB)