The new IE 900 from Sennheiser sets a new benchmark in portable audio fidelity through technical innovation, meticulous attention to detail, and an uncompromising demand for perfection.
The IE 900’s acoustic design ensures brilliant, natural high-end sound reproduction. It features a refined version of Sennheiser’s 7mm audiophile Extra Wide Band (XWB) transducer system, engineered to tighter tolerances and expertly tuned for even greater fidelity, and a unique triple-chamber absorber (T3CA) system. These advances produce high dynamics in a precise and controlled manner, so music stays distortion free and extremely transparent at any listening volume.
The IE 900 is manufactured by a specialist team at Sennheiser’s headquarters in Germany to the highest production standards in the audio industry, ensuring exceptional lasting quality.
In developing the IE 900, we 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 we were looking for, we designed a sophisticated system of three Helmholtz resonators — the X3R. It’s milled right into the solid aluminum housing of each earphone. These tiny channels eliminate resonance peaks which, in less advanced products, can color 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.