Sennheiser HD 620S Closed-Back Over-Ear Headphones｜Audiophile-Grade 42 mm Drivers・150 Ω・Open Soundstage Experience

Product Introduction

This product is a parallel import (grey import) version and does not come in packaging intended for authorised Hong Kong distribution; a one-year warranty is provided by our store.

Six Key Selling Points

Three Practical Usage Scenarios

Package Contents

Original standard retail packaging; actual packaging accessories are subject to the product received (the instruction manual language in parallel import packaging may be English, which does not affect product functionality). If you have any questions, please contact our store before placing your order.

Why Choose This Model?

• Closed-back design: — Steel-reinforced earcup housings block out external distractions, making them suitable for focused listening at home or in shared spaces.
• 42 mm angled drivers: — Reference-grade 42 mm angled drivers with 38 mm diaphragms deliver speaker-like imaging and a wide soundstage.
• 150 Ω aluminium voice coil: — The ultra-light 150 Ω aluminium voice coil enhances clarity and transient response, faithfully reproducing recording details.

Comparison of Models in the Same Series

Learn more about models in the same series:

Comparison is limited to models available in-store; prices are subject to the prices displayed on the page at the time of ordering.

Official Full Specifications

Frequently Asked Questions

Q: Is the HD 620S open-back or closed-back?

A: It features a closed-back design, but its angled drivers and semi-open baffles create a spacious soundstage close to that of open-back headphones.

Q: Is the 150Ω impedance difficult to drive?

A: It is a moderate impedance. It can generally be driven by a smartphone paired with a compact headphone amplifier; a desktop amplifier delivers better dynamics and control.

Q: Do I need a headphone amplifier?

A: Recommended, but not required. A high-quality headphone amplifier can fully bring out its soundstage and bass control.

Q: Can the cable be replaced?

A: Yes. It features a detachable cable design, and the manufacturer also offers a balanced cable and a cable with an in-line microphone.

Q: Is it suitable for extended wear?

A: Yes. Its lightweight construction, soft headband and ear pads, and internal ventilation design provide comfort during extended wear.

Q: How does it differ from the HD 600/650?

A: It offers the same refined sound as the HD 600 series, but features a closed-back design for better sound isolation and lower impedance (150Ω).