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Sennheiser IE 300 In-Ear Monitoring Headphones (Black)

SKU: 509104 Brand:

30,350 incl. GST

4,630 GST Input (18%) Claimable with B2B Billing.
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4 in stock

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  • Audiophile In-Ear Monitoring
  • XWB 7mm Dynamic Drivers
  • Durable, Lightweight, Easily Portable
  • Up to 26 dB of Passive Noise Attenuation
  • Detachable Para-Aramid Reinforced Cable
In the Box:
  • Sennheiser IE 300 In-Ear Monitoring Headphones (Black)
  • Detachable Cable with MMCX Connectors and 3.5mm Plug
  • Set of Silicone Ear Adapters (S, M, L)
  • Set of Memory Foam Ear Adapters (S, M, L)
  • Cleaning Tool
  • Hard-Shell Carry Case

Sennheiser IE 300 Overview

Designed with audiophiles in mind, the black Sennheiser IE 300 In-Ear Monitoring Headphones feature a host of innovative acoustic technologies working together to deliver a nuanced and accurate listening experience wherever you go. Borrowing from Sennheiser’s IEM PRO professional line of earphones, the IE300 is built with rugged, compact, and lightweight chassis, making it durable, comfortable to wear, and easily portable for keeping up with your lifestyle on the move.

The compact housings are ultra-light (at 0.1 oz) and feature an ergonomic earmold design with a flat profile that provides a secure fit and comfort during extended use. The included memory-foam ear adapters add up to 26 dB of passive noise attenuation, keeping extraneous sounds out, reducing ear fatigue, and allowing you to focus on your music.

The 4.1′ detachable, para-aramid-reinforced cable with gold-plated MMCX connectors and 3.5mm TRS plug provides mechanical reliability for standard connection to digital audio players, headphone amp-DAC combos, laptops, mobile phones, audio interfaces, and more.

The IE 300 is supplied with three pairs of memory-foam ear adapters, three pairs of silicone ear adapters, a cleaning tool, and a compact hard-shell case.

Detailed Sound Everywhere You Go
The IE 300 is engineered with Extra Wide Band 7mm dynamic drivers that deliver pristine audio in a compact package. Single drivers mean that the frequency range does not have to be split up into frequency bands as with multi-driver earphones. Distortion, phase problems, and dissonances in the inner ear are greatly reduced (or eliminated), resulting in a harmonious and powerful sound.
A new blend of materials in the diaphragm improves its rest-and-response times, delivering tight transients and greater accuracy throughout the frequency spectrum.

An innovative miniature chamber-within-a-chamber called the back volume 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 more defined bass- and mid-range response.

A frequency absorbing resonator chamber was added to help reduce resonant frequencies that occurs in the ear canal when sealed with memory-foam adapters and bring back lost nuances.

Long-Wearing Comfort
The IE 300’s compact design permits a lightweight construction, which, thanks to the accompanying silicone and memory foam adapters, can be individually adjusted to fit you perfectly. Up to 26 dB of passive noise attenuation helps reduce ear fatigue and allows you to clearly hear your music without distracting ambient noise. This is achieved by using a pair of the included memory-foam ear adapters, which expand to perfectly fit your ear canal—ensuring perfect acoustic sealing with the added benefit of enhanced bass reproduction.

Reliable Connection
The IE 300 comes with a 4.1′ detachable Y-cable that features reinforced ear hooks. The para-aramid-reinforced cable is rated for thousands of bend cycles.
Gold-plated Fidelity+ MMCX connectors are seated each within a recessed, 4.8mm-wide socket beneath the housing’s surface, providing rotational durability and contact integrity.

Packaging Weight 0.3 kg
Packaging Dimensions 27 × 15 × 7 cm
Earpiece Design

In-Ear (Intra-Aural)

Earpiece Connection / Wearing Style

Ear Clip, Wired

Driver Type


Number of Drivers

1, per Earpiece

Driver Size

0.3" / 7 mm


16 Ohms

Active Noise Cancellation


Frequency Response

6 Hz to 20 Hz

Maximum Sound Pressure Level (SPL)

124 dB at 1 kHz / 1 Vrms

Noise Attenuation

Up to 26 dB (Passive)

Total Harmonic Distortion (THD)


Audio Connector

1 x 1/8" / 3.5 mm TRS Male Right-Angled

Connector Plating


Adapter (Included)


Cable Design


Audio Connector to Earpiece

2 x MMCX Female

Cable Length

4.1' / 1.25 m

Cable Color


Cable Conductor Material

Oxygen-Free Copper

Operating Temperature

22 to 87°F / -10 to 55°C


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Returns Policy

  • Replacement of 7 days is covered for manufacturing defect only.
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GTIN: 615104355392