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  • Innovative X3R technology, unique to the IE 900, combines the German-made 7mm transducer with specially developed membrane foil, triple-chamber absorber and acoustic vortex for an intense listening experience.
  • German-made 7mm TrueResponse transducer for natural balanced sound.
  • Triple-chamber absorber system refines and smoothens high frequencies to perfection.
  • Acoustic vortex milled into the nozzle ensures natural sound wave propagation.
  • Newly developed membrane foil minimizes resonances and distortion.
  • One-piece housing precision-milled from a single block of aluminium offers exceptional durability and long-lasting aesthetic beauty.

Ear coupling


Frequency Response

5 Hz – 48,000 Hz (-10 dB)

Transducer principle

Single dynamic driver, pressure chamber

Transducer size

7 mm

Technology Unique X3R technology
Housing One-piece precision-milled aluminium housing

Sound pressure level (SPL)

123 dB (1 kHz, 1 Vrms)

Impedance 16 Ω
Total Harmonic Distortion (THD) <0.05% (94 dB, 1 kHz)
Weight: both earphones (L&R) 8 g
Weight: earphones with cable 24 g
Weight of headphone with packaging 446 g
Cable length 125 cm
Connector Fidelity (+) MMCX
Dimensions product packaging (L x W x H) 129 x 66 x 223 mm
  • IE 900 earphones
  • Unbalanced para-aramid reinforced cable with 3.5 mm connector
  • Balanced para-aramid reinforced cables with 4.4 mm and 2.5 mm connectors
  • 3 pairs of silicone ear adapters (S, M, L)
  • 3 pairs of foam ear adapters (S, M, L)
  • Cable clip
  • Cleaning tool
  • Cloth Carry case

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