Table of Contents
The Sennheiser HD 660S has long been celebrated among audiophiles and professionals for its exceptional sound quality. As we move into 2026, its reputation continues to stand strong, especially for those involved in editing and mixing audio. This review explores whether the HD 660S remains a top choice for audio professionals in the current year.
Design and Build Quality
The HD 660S features a robust yet lightweight construction, making it comfortable for long editing sessions. Its open-back design provides a natural and spacious soundstage, which is crucial for accurate mixing. The ear cups are padded with high-quality velour, ensuring comfort even during extended use. The headband is adjustable and sturdy, built to withstand daily professional use.
Sound Quality and Performance
The hallmark of the HD 660S is its balanced and detailed sound profile. It offers a wide frequency response, from deep bass to crisp highs, enabling precise audio analysis. The open-back design contributes to a natural sound environment, allowing engineers to perceive subtle nuances in their mixes. The impedance of 150 ohms means it benefits from a good quality amplifier for optimal performance.
Suitability for Editing and Mixing
For editing and mixing, accuracy and clarity are paramount. The HD 660S excels in these areas, providing a transparent sound that reveals even the smallest details. Its wide soundstage helps in spatial positioning of audio elements, essential for mixing. However, its open-back design means it leaks sound and offers limited noise isolation, which could be a concern in noisy environments.
Pros
- Exceptional sound clarity and detail
- Comfortable for long sessions
- Wide and natural soundstage
- Sturdy build quality
Cons
- Limited noise isolation due to open-back design
- Requires a good amplifier for best performance
- Higher impedance may be a barrier for casual users
Final Verdict
In 2026, the Sennheiser HD 660S remains a top contender for professional editing and mixing. Its accurate sound reproduction, comfort, and build quality make it suitable for serious audio work. However, users should consider their environment and equipment to ensure it meets their specific needs. For those seeking transparency and detail in their audio workflows, the HD 660S continues to be a reliable choice.