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■Please note
The product description is an automatic translation of the Japanese description. Please contact us if you have any questions.

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Monitor headphones that deliver a wide, transparent soundstage for a natural and accurate listening experience

Whether you're working at home or in the studio, you need your mixes to sound exactly how your listeners will hear them. The HD 400 PRO open-back studio headphones deliver a natural, accurate listening experience, allowing you to fine-tune your signature sound. Their lightweight design and velour ear pads provide the comfort you need for long sessions. Plus, the open ear cups and angled transducers deliver a wide, transparent soundstage, making the HD 400 PRO a trusted companion for those who value quality and precision above all else.

Features: A professional tool for neutral sound reproduction. Lightweight design for all-day use. Single-sided coiled cable allows for flexible operation; a convenient straight cable is also included. Angled transducers are designed to minimize distortion even at high SPLs (sound pressures), creating a spacious and accurate sound field.

Reference-grade headphones for project and professional mixing sessions
The HD 400 PRO's frequency range has been carefully developed, especially in the bass range. The angled transducer design delivers unique stereo imaging, recreating the spatial sound of your mix. In other words, what goes in, you get out. With analytical audio reproduction, the HD 400 PRO reference headphones are your everyday tool for getting the job done.

Open Back, Open Mix: Open earcups replicate the optimal listening position found in high-end recording studios, delivering a wide, transparent soundstage. Closed-back artifacts are a thing of the past. These studio headphones don't contain anything; rather, they ensure neutral transparency, creating the foundation for your best mix.

The perfect synergy of comfort and accuracy. Mixing sessions are never short. The HD 400 PRO's lightweight design lets you focus on your project for hours on end. Articulating ear cups, velour ear pads, and an adjustable headband provide adaptability and comfort that perfectly matches the shape of your head.
Our proprietary 120Ω transducers are precisely tuned to deliver every detail of your mix. High-efficiency driver magnets deliver clarity, while a damping system manages breathability. This delivers deeper bass while reducing distortion that impacts sound quality. Even professional users will appreciate the difference.

More tools, more options
The HD 400 PRO comes with a detachable coiled cable, a convenient straight cable, and a screw-in adapter for connecting to audio equipment with 6.3mm or 3.5mm outputs, such as mixing desks and audio interfaces.

For optimal listening range in your mixing environment
With dearVR MIX, immersive audio experts Dear Reality's advanced spatial audio technology transforms your HD 400 PRO into a world-class virtual stereo mix room with meticulously designed acoustics. Insert the AAX/VST3/AU plug-in into your DAW and hone your mix with confidence by monitoring your session in a reference studio or typical listening environments like a car. Dear Reality's proprietary SHC (Spatial Headphone Correction) technology ensures the HD 400 PRO's acoustic characteristics are not limited by the virtual studio environment, providing a monitoring solution that can be reliably translated to any sound system, regardless of the type of production or musical genre.

■ Included items: HD 400 PRO Studio Reference Headphones
・3m coiled cable with 3.5mm jack plug
・3.5mm jack plug to 6.3mm adapter
・1.8 m straight cable
・Quick Guide
・Safety Guide

■Specifications・Impedance: 120Ω
Frequency range: 6 Hz to 38 kHz (-10 dB)
Sensitivity: 110 dB (1 kHz / 1 V RMS)
・Total harmonic distortion (THD + N): < 0.05% (1 kHz / 90 dB SPL)
-Ear cup shape: circumaural
Jack plug: 3.5 mm jack plug with 6.3 mm adapter
・Body weight: 240 g
・Storage temperature: -55 °C to +70 °C (-67 °F to 158 °F)
・Operating environment: -15 °C to +55 °C (5 °F to 131 °F)
・Operating environment: ≦ 90%
・Acoustic principle: dynamic, open
-Ear pad material: Velour