Sennheiser IE 40 PRO Black

Item: PAH0020434-000
Sennheiser IE 40 PRO Black Product Image
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Sennheiser IE 40 PRO Black - Sennheiser has further developed the principle of the dynamic single driver and revolutionised the...  All product info

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Product information - Sennheiser IE 40 PRO Black

Sennheiser IE 40 PRO

The IE 40 PRO is designed for musicians, singers and sound engineers to facilitate their daily work on stage, in the studio and in the rehearsal room. The in-ear headphones feature improved ergonomics and sound quality as well as the most reliable connector system available on the market.
Its newly developed dynamic broadband converter ensures precise, distortion-free sound even at high sound pressure levels and offers an even frequency response over the entire spectrum with a powerful bass foundation at the same time. The ergonomically optimized housing of the compact in-ear headphones with only 10 mm small transducer not only offers a secure fit and maximum wearing comfort, but is also extremely stable. The special cable routing makes the IE 40 PRO perfect for mobile life.

Dynamic individual drivers of the next generation

Most in-ear headphones today use balanced armature transducers, as found in hearing aids. With this technology, the sound signal is split by a crossover and distributed to several drivers. Sennheiser has further developed the principle of the dynamic single driver, revolutionizing the market for in-ear headphones. Thanks to the new TrueResponse technology, the entire frequency spectrum can be mapped with a single driver, without any crossover effects or phase shifts. The sound is completely distortion-free, reducing acoustic stress for musicians, sound engineers and DJs. It remains natural and differentiated even at very high sound pressure levels - and can assert itself even in the loudest environments. Our new in-ear headphones deliver what they promise: "More me" - for better performance through improved hearing.

The advantages of the new TrueResponse technology from Sennheiser at a glance:

  • A single XWB converter to cover the entire frequency spectrum
  • Phase linearity - Phase shifts cannot occur
  • Distortion-free playback with a distortion factor of only < 0.06 %
  • No crossover effects
  • Precise playback with natural and differentiated tonal


  • Excellent assertiveness even in demanding environments-
  • Reliably handles even high sound pressure levels-
  • Compact and lightweight earpiece

Technical Specifications

  • Converter principle: Dynamic (SYS 10 )
  • Audio transmission range: 20 - 18,000 Hz
  • Sound pressure level (SPL): 115 dB (1 kHz / 1 Vrms)
  • Distortion factor (1 kHz, 100 dB): < 0.1% (1kHz, 94dB)
  • Noise reduction: < 26 dB
  • Operating temperature range: -5°C to +50°C
  • Storage temperature range: -20°C to +70°C
  • Magnetic field strength: 3.5 mT
  • Relative humidity: < 95 %
  • Cable length: 1.3m
  • Weight (incl. plug and cable): 18g


  • Manufacturer: Sennheiser
  • Frequency Response from (Hz): 20
  • Frequency Response to (Hz): 18000
Sennheiser IE 40 PRO Black Product ImageSennheiser IE 40 PRO Black
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