Sennheiser IE 400 PRO Professional In Ear Monitor Earphones - Smoky Black

SKU: 507483


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Featuring the company's cutting-edge TrueResponse technology and a single dynamic SYS 7 driver, the IE 400 Pro delivers a natural, phase-linear sound without the distortion common to multi-way drivers at louder volumes.


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Sennheiser IE 400 PRO In-ear Monitors - Smoky Black

Get pro sound in your ears with the Sennheiser IE 400 Pro monitor earphones.

Featuring the company's cutting-edge TrueResponse technology and a single dynamic SYS 7 driver, the IE 400 Pro delivers a natural, phase-linear sound without the distortion common to multi-way drivers at louder volumes.

And with its ergonomic ear mould design, the IE 400 Pro offers optimal comfort for hours of listening — a feature you'll really appreciate.

The warm in-ear monitoring sound of the IE 400 PRO with its rich, noticeable punch is the right choice for professionals who wish to take their accustomed studio sound onto the stage with them.

Even at high sound pressure levels, the IE 400 PRO reproduces its warm sound free from artefacts and distortion. With the newly developed TrueResponse technology, the dynamic driver measuring a mere 7 mm generates tremendous resolution and prevents acoustic stress, even during long periods of use.

Distortion, overlapping frequencies and resonance peaks which otherwise usually occur frequently are no longer a problem. The distortion factor has been optimised to a previously unimaginable 0.08%.

It’s miniature design also permits an ultra-compact construction which, thanks to the accompanying silicone and memory foam adaptors, can be individually adjusted.

This in-ear monitor is easy to handle and provides brilliant sound reproduction. Built to last under extreme stress, a secure and comfortable fit for hours.

Looking for distortion-free, natural sound with a “punch,” transparent mid-range reproduction and clear high frequencies? The IE 400 PRO is the right choice.

More punch, more transparency, more control

The IE 400 PRO provides noticeable punch, clear high frequencies and transparent mid-range reproduction.

Thanks to its clear frequency response and warm monitoring sound, musicians can perceive themselves with confidence and without distortion. Furthermore, they can do so at high sound pressure levels where other in-ear systems begin to clip and distort. The dynamics of the IE 400 PRO represent the philosophy of the entire IE series; MoreMe.

Perceive more, have more control, and confidently locate your own sound in the mix.

Next-generation dynamic drivers

The result of intensive development work: a single dynamic high-performance driver – with a diaphragm measuring only 7 mm in diameter – covers the entire frequency spectrum. This way, interference effects in the region of the transitional frequencies and phase differences are avoided.

A system of magnets with triple-duct ventilation significantly reduces the distortion factor. The two-chamber absorber in the direction of the ear canal minimises resonance peaks that would otherwise naturally occur.

The result: even at high sound pressure levels, the sound remains clean and free from distortion. Consequently, the IE 400 PRO protects your hearing, even after hours on the loudest stages. During professional use, that which previously got lost in the mix suddenly becomes audible.

It’s not just the sound that fits your ear…

…the IE 400 PRO also sits comfortably and securely in your ear for several hours. Choose either silicone or viscoelastic memory foam tips to individually adapt to the structure and depth of your ear canal for hours of reliable wearing comfort.

Durable and innovative cable ducting with a deep-set connector and double-backed protection allows the IE 400 PRO to also withstand tough nights on the stage. Again, and again.


  • Detailed, balanced in-ear monitor sound that packs a real punch
  • Compact, extremely lightweight earmould in a superior ergonomic yet rugged design
  • Detachable, stage-proof cable with break-proof connection and reinforced ear hook
  • Ergonomic earmould design with flat profile for comfortable fit
  • Silicone and memory foam ear tips in all sizes, individually adaptable to ear 
canal depth 

  • Incorporates Sennheiser’s TrueResponse technology:
  • 1 extra-wideband transducer covering the entire frequency range
  • Perfect phase linearity
  • Truly distortion free with only < 0.06% total harmonic distortion
  • Free of crossover effects
  • Precise stereo imaging
  • Able to withstand higher sound pressure levels
  • Ultra-lightweight and compact design of the ear mould


  • Impedance: 16 Ohms
  • Frequency response: 6 - 19,000 Hz
  • Sound pressure level (SPL): 123 dB (1 kHz / 1 Vrms)
  • THD, total harmonic distortion: < 0.08 %
  • Cable length: 1.3 m
  • Transducer principle: Dynamic
  • Weight: 18 g
  • Attenuation: up to 26 dB

What's in the Box?

  • 1 x Sennheiser IE 400 PRO in Smoky Black
  • 3 x Silicone adaptors (S, M, L)
  • 3 x Foam adaptors (S, M, L)
  • 1 x Transport case
  • 1 x Cleaning Tool
  • 1 x 6.3 mm jack-adaptor

For more information, Click Here to visit the Manufacturer's Website


SKU 507483
Barcode # 615104304581
Brand Sennheiser
Unit Of Measure ea

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