# Open-Back Mixer Headphones The Sennheiser HD 400 Pro Headphones are Reliable By Michael Hemsworth | Published 2021-12-04 | Tech Source: Trend Hunter, https://www.trendhunter.com/trends/sennheiser-hd-400-pro References: [newatlas](https://newatlas.com/wearables/sennheiser-hd-400-pro-headphones/) & [en-us.sennheiser](https://en-us.sennheiser.com/hd-400-pro)  The [Sennheiser](https://www.trendhunter.com/trends/sennheiser-hd-490-pro) HD 400 Pro headphones are an [open-back audio accessory](https://www.trendhunter.com/trends/hifiman-he1000-unveiled) for users seeking out a way to partake in mixing and additional post-production work in a precision manner. The headset makes use of Dear Reality's monitoring plugins that will create something of a virtual mix room with [spatial audio functionality](https://www.trendhunter.com/trends/havit-space-s1) to help users focus on the task at hand. The headphones are built with comfort in mind to help support users who spend extended periods mixing and weigh in at just 240-grams with an open design that will prevent heat from being retained. Gunnar Dirsk at Sennheiser commented on the Sennheiser HD 400 Pro headphones saying, "When editing and mixing, you need detail and honesty, and this is what the HD 400 Pro will give you. Thanks to their linear, high-resolution reproduction, these headphones are a reliable reference to create outstanding audio mixes." ## Trend Insights (Trend Hunter) - Score: 1.8/10 - Popularity: 27% | Activity: 16% | Freshness: 11% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Tech](https://www.trendhunter.com/tech) > [Gadgets](https://www.trendhunter.com/gadgets) ## Key Themes ### Why This Trend Is Growing - **Open-back Mixer Headphones:** The trend towards open-back headphones with precision sound and comfort for mixing and post-production work. - **Spatial Audio Monitoring Plugins:** The trend towards virtual mix rooms with spatial functionality for professional audio work. - **Reliable Audio References:** The trend towards high-resolution, linear reproduction headphones for accurate audio reference during production. ### Industries Being Reshaped - **Audio Technology:** Opportunities for companies to innovate and create more specialized audio technology for professional use. - **Music Production:** Opportunities for companies to create more specialized tools for music production and post-production work. - **Virtual Reality/augmented Reality:** Opportunities for companies to incorporate spatial audio functionality into VR/AR experiences for a more immersive experience. ## Related on Trend Hunter - [Precision Studio Headphone Models](https://www.trendhunter.com/trends/sennheiser-hd-490-pro.md) - [Ergonomic Open-Style Headphones](https://www.trendhunter.com/trends/sennheiser-hd-660s2.md) - [Linear Acoustics Headphones](https://www.trendhunter.com/trends/sennheiser-hd-560s.md) - [Refined Spatial Audio Headphones](https://www.trendhunter.com/trends/beats-studio-pro.md) - [Wireless High-Res Audio Headphones](https://www.trendhunter.com/trends/sennheiser-hdb-headphones.md) - [Entry-Level Wired Headphone Ranges](https://www.trendhunter.com/trends/sennheiser-wired-headphones.md) - [Wired Studio Headphones](https://www.trendhunter.com/trends/wired-studio-headphones.md) - [Professional Studio-Grade Headphones](https://www.trendhunter.com/trends/audeze-mm100.md) - [Copper-Accented Performance Headphones](https://www.trendhunter.com/trends/sennheiser-hd-505-copper-edition.md)