IE 900 - The precision-manufactured aluminum housing of the IE 900 faithfully protects the dynamic TrueResponse transducers at the heart of Sennheiser’s innovative X3R technology. Experience the peak of German audio engineering and manufacturing with earphones that deliver only the purest, most natural sound.

• New benchmark in portable audio

• Ultimate precision & craftsmanship

• X3R technology: TrueResponse transducer combined with three Helmholtz resonator chambers and acoustic vortex

• Precision-milled and anodized aluminum housing

• Hand-assembled at Sennheiser´s headquarters

• Gold-plated Fidelity (+) MMCX connectors for improved stability

• Choice of para-aramid reinforced cables (2.5 mm, 3.5 mm, 4.4 mm)

• Adjustable ear hooks and choice of ear adapters including memory foam

• Frequency response: 5 Hz - 48,000 Hz

• THD: 0.05% (1 kHz, 94 dB)

• Impedance: 16 ohms

• Sound pressure level (SPL): 123 dB (1 kHz, 1 Vrms)

• Woo Audio is an authorized reseller

• Connectivity cables: 3.5 mm Standard, 2.5 mm balanced, 4.4 mm balanced Pentaconn

• Ear tips (pairs): 3 x Silicone S, M, L and 3 x Comply™ Foam S, M, L.

• Manual

• Transport case