Sennheiser IE 300

General Information

When you have a passion for audio, detail matters: Created for audio enthusiasts, Sennheiser’s new IE 300 earphones have been crafted to deliver a high-fidelity listening experience anywhere you go.

Designed and engineered in Germany, the IE300 features a refined version of Sennheiser’s acclaimed 7mm Extra Wide Band (XWB) transducer to ensure superior sound quality, with a well-balanced sound signature and excellent sonic accuracy. Every component has been carefully tuned to work together in perfect harmony: This includes an optimized membrane foil that minimizes natural resonances and total harmonic distortion, a transducer back volume designed to minimize reflection within the housing and a resonator chamber that removes masking resonances in the ear canal for more refined and detailed treble: The IE 300 delivers clear high frequencies with a subtle and warm musicality that brings greater intimacy to vocals. Thanks to a choice of ear adapters that includes memory foam options for optimum noise isolation, you can fully enjoy undisturbed listening even in busy environments or on the move.

The IE 300 offers exceptional durability and comfort, with a design inspired by the world of professional audio. Its ergonomic features include individually adjustable flexible ear hooks for a perfectly secure fit and superb wearing comfort even for long sessions immersed in music.

This design ensures that the cable is guided to minimize body borne noise. The IE 300’s supplied cable, which has a 3.5mm connector - is reinforced with para-aramid for outstanding stability and tear strength. Balanced cables with 2.5mm and 4.4mm connectors will also be available as optional accessories, while the use of a high-quality Fidelity+ MMCX connector ensures that cables can be easily replaced for optimal flexibility – and to guarantee you years of listening pleasure.

Technical Data

Transducer principleSingle Dynamic Driver, Pressure Chamber
Weight, w/o cable4 g
Ear couplingIn-Ear
Cable length125 cm
Impedance16 Ω
Sound pressure level (SPL)124 dB (1 kHz / 1 Vrms)
THD, total harmonic distortion< 0,08 % (1 kHz, 94 dB SPL)
Frequency response6 Hz - 20 kHz

Accessories / Spare Parts

Part No.Part Name
509105Silicon Adapter S
509106Silicon Adapter M
509107Silicon Adapter L
509108Foam Adapter S
509109Foam Adapter M
509110Foam Adapter L
508959High-End Cable 2.5mm
508960High-End Cable 3,5mm
508961High-End Cable 4,4mm


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