The new IE 900 from Sennheiser sets a new benchmark in portable audio fidelity through technical innovation (X3R technology), meticulous attention to detail, and an uncompromising demand for perfection.

Every aspect of the IE 900 has been engineered to work in harmony to achieve the desired acoustic tuning and to reduce resonances and masking effects. Its acoustic design ensures brilliant, natural high-end sound reproduction and reveals even the finest details in the music.

Innovative X3R technology, unique to the IE 900, unites the German-made 7mm TrueResponse transducer with specially developed membrane foil, triple-chamber absorber system and acoustic vortex for an intense listening experience.

What refines the X3R technology is its three Helmholtz resonator chambers and acoustic vortex which smoothens masking resonance. The three resonator chambers are precision-drilled into the elegant aluminum chassis of the IE 900 and placed between the diaphragm and the nozzle.

This complete harmony of systems is at work to unlock the details buried within every track.

The secure form fitting lightweight high-strength anodized aluminum housing offers exceptional resistance and long-lasting aesthetic beauty. Adjustable flexible ear hooks and a selection of silicone and memory foam ear adaptors in 3 sizes (S/M/L) adapt to the natural shape of your ear for a tailored fit and high noise isolation.

Specifications

Transducer principle: Closed-back single dynamic driver, pressure chamber
Transducer size: 7mm
Frequency response: 5 Hz – 48,000 Hz (-10 dB)
Impedance: 16 Ohms
THD: <0.05% (94 dB, 1 kHz)
Cable connector: Gold-plated Fidelity+ MMCX Connectors
Weight: 4 g (single earphone); 24 g (earphones with cable)

2.5mm Jack Adapter