Sennheiser

Sennheiser IE 400 PRO Clear In-Ear Monitoring Headphones [B-Stock]

$0.00

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 artifacts and distortion. With the newly developed TrueResponse technology, the dynamic driver measuring a mere 7mm 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 optimized 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 adapters, 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.

View Product Features

Newly developed dynamic 7mm wideband transducer for punchy, high-resolution monitoring sound
Noticeable punch with transparent mid-range reproduction and clear high frequencies
True Response driver system reduces acoustic stress factors through homogeneous and distortion-free reproduction
High level of wearing comfort and good fit thanks to ergonomic compact housing
Excellent shielding through optimized earpiece shape and flexible silicone and foam tips
Cable concept fit for the stage with innovative duct (patent application in progress)

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About the Sennheiser IE 400 PRO Clear In-Ear Monitoring Headphones [B-Stock]

The Sennheiser IE 400 PRO is a professional single-driver in-ear monitor designed for musicians, audio engineers, and critical listeners who demand accurate sound reproduction and reliable performance on stage and in the studio. It features a proprietary 7mm extra-wide band (XWB) transducer engineered by Sennheiser to deliver a detailed, balanced frequency response with exceptional clarity across the entire audible spectrum. The single-driver design avoids potential phase and crossover issues associated with multi-driver systems, resulting in coherent and natural sound that is particularly valued for monitoring live instruments and mixes. The IE 400 PRO is tuned to provide a flat, reference-like response with a slight enhancement in the bass region to ensure low-end information is clearly audible even in noisy stage environments.

Comfort and secure fit are paramount for in-ear monitors, and the IE 400 PRO addresses this with an ergonomic, lightweight housing shaped to fit snugly in the ear canal. It comes with a comprehensive set of silicone and memory foam ear tips in multiple sizes to achieve an optimal seal, which is crucial for both noise isolation (up to 26 dB) and accurate bass response. The detachable cable utilizes a robust MMCX connector system, allowing for easy replacement or upgrade, and is designed to be worn over-the-ear to minimize microphonic noise (cable rustle). The cable itself is flexible, tangle-resistant, and includes an adjustable chin slider for a secure fit.

As a B-Stock item, the IE 400 PRO offers the full acoustic performance and build quality of a new unit but may have minor cosmetic imperfections or come in non-retail packaging. It represents an excellent value for professionals seeking a high-fidelity, durable monitoring solution from a trusted audio brand. Whether used for live performance, studio tracking, or critical listening, the Sennheiser IE 400 PRO provides the clarity, isolation, and comfort needed for extended sessions, helping users make precise audio decisions and protect their hearing by replacing loud stage monitors with a personal, controlled mix.

Key Features

Newly developed dynamic 7mm wideband transducer for punchy, high-resolution monitoring sound
Noticeable punch with transparent mid-range reproduction and clear high frequencies
True Response driver system reduces acoustic stress factors through homogeneous and distortion-free reproduction
High level of wearing comfort and good fit thanks to ergonomic compact housing
Excellent shielding through optimized earpiece shape and flexible silicone and foam tips
Cable concept fit for the stage with innovative duct (patent application in progress)