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.
Sennheiser - IE 900 in-Ear Headphones
Sennheiser IE 900 Audiophile in-Ear Monitors - TrueResponse Transducers with X3R Technology for Balanced Sound, Detachable Cable with Flexible Ear Hooks, Includes Balanced Cables, 2-Year Warranty : Electronics
Sennheiser IE900 Review (1) - Classical Reinvented • Music For The Masses
Sennheiser IE 200 Review
Head-Fi.org, Considering upgrading the cable on the IE900, it's my first IEM that has at least temporarily cured my hunger to try more IEMs and with that in mind
Sennheiser IE 900 - Reviews Headphone Reviews and Discussion
Sennheiser IE 900 - Reviews Headphone Reviews and Discussion
The precision-manufactured aluminum housing of the IE 900 faithfully protects the dynamic TrueResponse transducers at the heart of Sennheiser’s
IE 900 Earphones
Sennheiser IE 900 - Reviews Headphone Reviews and Discussion
Sennheiser IE 900 in-ear headphone review: Sweet isolation
Sennheiser IE 900 - Reviews Headphone Reviews and Discussion