Sennheiser IE 900 Audiophile in-Ear Monitors - TrueResponse Transducers with X3R



Every Detail Matters.

The IE 900 from Sennheiser sets a new benchmark in portable audio fidelity through technical innovation (X3R) 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.
Features:

    New benchmark in portable audio
    Ultimate precision & craftsmanship
    Adjustable ear hooks and choice of ear adapters including memory foam
    X3R technology: TrueResponse transducer combined with three Helmholtz resonator chambers and acoustic vortex
    Precision-milled and anodized aluminum housing

Natural Balanced Sound

    Innovative X3R technology for an intense listening experience
    German-made 7mm TrueResponse transducer for natural balanced sound
    Unique triple-chamber absorber system refines and smoothens high frequencies to perfection
    Acoustic vortex milled into the nozzle ensures natural sound wave propagation
    Specially developed membrane foil minimizes resonances and distortion

Ultimate Precision & Craftmanship

    Designed engineered and manufactured in Germany
    Transducers are matched during the manufacturing process to practically eliminate variance
    One-piece housing is precision-milled from a single block of aluminum
    Hand-assembled by a specialist team at Sennheiser´s headquarters to razor-thin tolerances
    Global 2-year warranty

Durability & Comfort

    Lightweight high strength housing offers exceptional durability and long-lasting aesthetic beauty
    Form-fitting anodized aluminum housing seats securely in the ear
    Selection of silicone and foam ear adaptors ensure an optimal fit for high noise isolation
    Adjustable ear hooks adapt to the natural shape of the ear for a tailored fit
    Para-aramid reinforced cables with gold plated Fidelity+ MMCX connectors ensure the longevity of use
    A choice of balanced and single-ended cables (2.5mm/3.5mm/4.4mm) for easy connectivity

Introducing the X3R Technology

Innovative X3R technology unites the German-made 7mm TrueResponse transducer with specially developed membrane foil and acoustic back volume 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.
Specifications

    General Data
        Transducer principle: Closed-back single dynamic driver pressure chamber
        Transducer size: 7 mm
        Frequency response: 5 Hz – 48000 Hz (-10 dB)
        Impedance: 16Ω
        Sound pressure level (SPL): 123 dB (1 kHz 1 Vrms)
        Total Harmonic Distortion (THD): <0.05% (94 dB 1 kHz)
        Ear coupling: In-ear headphone
        Weight
            Single Earphone: 4 g
            Earphones with Cable: 24 g
        Cable connector: Gold-plated Fidelity+ MMCM Connectors
        Jack Plug: 2.5mm/3.5mm/4.4mm

                    Brand new sealed packaging!!
Package Includes:  

    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