Sennheiser IE 900 Audiophile in-Ear Monitors - TrueResponse Transducers with X3R Technology for Balanced Sound, Detachable Cable with Flexible Ear Hooks, Includes Balanced Cables

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.

Ultimate Precision & Craftsmanship:

Designed, engineered, and made in Germany the one-piece housing is precision-milled from a single block of aluminum on an avant-garde 5-axis-CNC machine.

The demanding milling process takes 40 minutes for each pair of IE 900. Components are hand-assembled by a specialist team at Sennheiser´s headquarters with meticulous attention to detail.

A precise fit for precise sound

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.

Air Control:

An acoustic back volume controls the direction and overall volume of air as it moves through the transducer system, so you hear a pleasantly disciplined bass and mid-range without distracting peaks or troughs.

An airflow inlet allows for air movement to ensure air is not trapped inside the housing. Trapped air would act like a spring and reduce bass performance.

It pays to have good connections:

A choice of para-aramid reinforced cables (2.5 mm, 3.5 mm, 4.4mm) with gold-plated Fidelity+ MMCX connectors provides connection to practically any audio source.

The para-aramid reinforced cables can withstand many thousands of bend cycles and the special recessed design of the gold-plated Fidelity+ MMCX connectors reduce strain on the connector and ensure reliability even after hundreds of cycles.