Sennheiser HD 620S — Editorial Review

Sennheiser HD 620S — Editorial Review

Launched in mid-2024 at $349.95, the HD 620S is Sennheiser's attempt to bring the open, spacious sound of its acclaimed 6-series to a closed-back design — headphones for listeners who need isolation but don't want the congested staging closed cans are known for. Per What Hi-Fi?, the result is a smooth, detailed and easy-to-listen-to presentation that's notably more spacious than typical closed-backs.

Featured Video Review

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An unusually open-sounding closed-back

The defining achievement is staging. Headfonia notes the HD 620S delivers an airy, open character while still isolating you from the room — among the less cramped-sounding options in the closed-back space. RTINGS' measurements back up a generally neutral, well-balanced tuning suited to critical listening. In Crinacle's review — featured above — the measurement-focused reviewer assesses whether it earns its place at the $350 mark, praising the tuning while being candid about where the value proposition wobbles.

Who it's for

This is a home-listening headphone for people who want 6-series tonality with isolation — apartments, shared offices, or any setting where open-backs leak too much. It is easy to drive and rewards a clean source.

Honest cons

• Detail is good, not class-leading for the price. Reviewers note instrument separation can sound slightly fuzzy and the resolution isn't exceptional for $350.
• Firm clamping force. Several reviews flag tight clamp pressure — a comfort concern for glasses-wearers and long sessions.
• Build feels like the 5-series. The plastic chassis (shared with the cheaper 5-series) can creak and feels less premium than the price suggests.

Where these headphones fit

• Home and office listeners who want Sennheiser 6-series tonality with closed-back isolation for shared or noise-sensitive spaces.
• Critical listeners who value a neutral, spacious tuning over maximum sparkle or bass emphasis.
• Open-back owners wanting a closed companion that doesn't feel boxed-in.
• Not buyers chasing the absolute best detail per dollar, those sensitive to clamp pressure, or anyone expecting a premium-feeling build at this price.

Sources & Citations

1. What Hi-Fi?, "Sennheiser HD 620S review," whathifi.com (accessed 2026-05-25)
2. RTINGS.com, "Sennheiser HD 620S Headphones Review," rtings.com (accessed 2026-05-25)
3. Headfonia, "Sennheiser HD 620S Review," headfonia.com (accessed 2026-05-25)

Last verified: 2026-05-25