Sennheiser IE300 High-End In-Ear Headphones

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Featuring a host of innovative acoustic technologies that supercharge the premium 7mm XWB transducer, the IE 300 by Sennheiser creates an effortless audiophile listening experience - whenever and wherever you want one.

The driving force of IE 300 is a refined version of the Sennheiser Extra Wide Band (XWB) 7mm transducer, revered for its breathtaking acoustic performance in a deceptively compact package. A new blend of materials in the diaphragm improves its rest-and-response times for greater accuracy throughout the frequency spectrum.

When resonances are minimized, the enhanced speed brings clarity to higher frequencies, subtly warm mids, and clean bass response with low harmonic distortion. Transients are tight without harsh frequency smearing, vocals retain their silky character directly from the master recording to your mind. XWB transducers reproduce sound that is completely unique to the Sennheiser audiophile legacy - which is no surprise as they are developed and manufactured with exacting precision at their world-class facility in Germany.

A key element of the balanced acoustic performance of IE 300 is back volume - a miniature chamber-within-a-chamber that helps manage the flow of air behind the transducer. The direction and overall volume of air is controlled with precision as it travels through and exits the transducer system, delivering a discernibly defined bass and midrange experience.

Sennheiser have further observed a natural increase in the ear canal resonant frequency when sealed by an ear tip adapter. The reduced air volume produced a masking effect that obscured critical details within the source signal. A frequency absorbing resonator chamber was applied to reveal those subtle nuances once again. This collection of technologies works together in perfect harmony, establishing the IE 300 as a go-to benchmark earphone when sound quality matters.

Because IE 300 shields you from ambient noise, your music stays in control of every listening session. The reduction of ambient noise diminishes ear-fatigue for better, longer listening sessions in practically any location you could dream up.

Included with IE 300 are three sizes of silicone ear tips, plus three sizes of memory foam ear tips which conform to the unique shape of your ear canal for maximum noise-isolating performance. IE 300 was inspired by performing musicians and their need for universal in-ear monitoring systems with an enduring, comfortable fit. Though you may never physically set foot on a live performance stage, your audiophile ear will appreciate these earphones ability to keep up with your lifestyle on the move.


  • German-made 7 mm XWB transducer – for natural balanced sound.
  • Resonator chamber to remove masking resonances.
  • Newly developed membrane foil for minimized natural resonances.
  • Para-aramid reinforced cables with gold-plated MMCX connectors and a 3.5 mm plug.
  • Adjustable flexible ear hooks and a choice of ear adapters incl. memory foam.


  • Impedance: 16 Ω
  • Transducer principle: Single Dynamic Driver, Pressure Chamber
  • Weight w/o cable: 4 g
  • Sound pressure level (SPL): 124 dB (1 kHz / 1 Vrms)
  • Ear coupling: In-Ear
  • Cable length: 125 cm
  • Frequency Response: 6 Hz - 20 kHz
  • THD: < 0,08 % (1 kHz, 94 dB SPL)


  • IE 300 Earphones
  • Cable with MMCX connectors and 3.5mm plug
  • Silicone & Memory Foam Sets (S, M, L)
  • Carry Case
  • Cleaning Tool
  • User Manuals

More Information

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Headphone Features

Dynamic Driver Size:
Transducer Type:
XWB (Extra Wide Band)
Ear Cup:
Closed Back
Headphone Type:
  • HiFi Headphones
  • In Ear Headphones
  • iPhone and iPod Headphones
  • Smartphone Headphones
Smartphone Remote:
6 - 20,000


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