Beyerdynamic DT 990 Pro vs Sennheiser HD 620S

Updated Sep 2026 · Scored by the Let’s Compare Data Engine · How we score

For most buyers the Beyerdynamic DT 990 Pro is the better pick — it scores 29/100 to the Sennheiser HD 620S's 22, leading on Comfort & Build. Choose the Sennheiser HD 620S instead if you want to spend less.

Sound quality isn't scored yet (we have no measured audio data), so the score covers features, battery, noise cancelling and build.

Verdict

Our overall take, at a glance

Beyerdynamic DT 990 Pro leads overall

Beyerdynamic DT 990 Pro

Sennheiser HD 620S

Why it stands out

Comfort & Build Weight: 250 g (23% less)

Watch-outs

Compromises to know before you buy

Beyerdynamic DT 990 Pro

No microphone — you can't take calls.

Sennheiser HD 620S

No microphone — you can't take calls.

Winner by category for Beyerdynamic DT 990 Pro vs Sennheiser HD 620S
Category	Beyerdynamic DT 990 Pro	Sennheiser HD 620S	Winner
Noise Cancelling	0	0	Tie
Wireless	15	15	Tie
Battery	0	0	Tie
Comfort & Build	62	38	Beyerdynamic DT 990 Pro
Connectivity	15	15	Tie

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Sep 2026.

Beyerdynamic DT 990 Pro

The Beyerdynamic DT 990 Pro is an open-back headphone designed primarily for studio monitoring, mixing, and content creation. Handcrafted in Germany, this long-standing model is characterized by its high impedance and highly durable construction. It is built for audio professionals and enthusiasts who require an expansive acoustic presentation at an accessible price point.

Best for Critical audio mixing and editing in controlled, quiet studio spacesBest for Listeners who prioritize long-term serviceability and easily repairable…

Pros

Highly modular physical design with easily replaceable parts
Open-back architecture delivers an expansive, spacious soundstage
Acoustic profile is highly responsive to user equalization

Cons

High impedance requires dedicated amplification to drive the headphones effectively
Open-back housing provides virtually no environmental sound isolation

Source

Beyerdynamic - WikipediaProvides details on Beyerdynamic's German manufacturing heritage and company history.

Video — reviews used (3)

Highlights the headphone's high impedance, lack of isolation, ease of equalization, and replaceable components.

Generated Jun 30, 2026

Sennheiser HD 620S

The Sennheiser HD 620S is a closed-back dynamic headphone designed for audiophiles who want the mid-range performance and tuning characteristic of the open-back HD 600 series but require passive isolation. It features a closed-cup acoustic design aimed at providing a spacious soundstage while physically blocking out external noise.

Best for Audiophile-grade critical listening in offices or shared living spaces where…Best for Fans of the classic Sennheiser sound signature who need isolation from ambient…

Pros

Provides passive noise isolation to block external sound and prevent leakage
Adapts the highly regarded Sennheiser HD 6X0 sound signature into a closed-back layout
Durable build design intended for long-term reliability

Cons

Inherent acoustic limitations of closed ear cups may result in a less natural soundstage compared to true open-back models
Clamp force and physical headband design may cause pressure discomfort during extended listening sessions

Value for Money

Which is the better deal for the price

Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.

Beyerdynamic DT 990 Pro

Check Price on Amazon

Sennheiser HD 620S

Check Price on Amazon

Physical Comparison

Weight, side by side

Beyerdynamic DT 990 ProSennheiser HD 620S

Sennheiser HD 620S is 76 g (30%) heavier than Beyerdynamic DT 990 Pro.

Review Videos

Hand-picked expert reviews for each product

Detailed Specifications

The full spec sheet, side by side

Wireless

Feature	Beyerdynamic DT 990 Pro	Sennheiser HD 620S
Wireless	No	No
Supported Codecs	N/A	N/A

Comfort & Build

Feature	Beyerdynamic DT 990 Pro	Sennheiser HD 620S
Weight	250 g23% less	326 g
Folding Design	No	No
Water Resistance	N/A	N/A
Dimensions	N/A	N/A

Connectivity

Feature	Beyerdynamic DT 990 Pro	Sennheiser HD 620S
Wired Connection	3.5mm + 6.35mm adapter	N/A
Detachable Cable	No	Yes
Built-in Microphone	No	No

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

Frequently Asked Questions

Common questions about Beyerdynamic DT 990 Pro vs Sennheiser HD 620S comparison

Based on our overall comparison score, Beyerdynamic DT 990 Pro rates higher at 25/100 versus 21/100 for Sennheiser HD 620S — a 4-point lead. Beyerdynamic DT 990 Pro is the stronger overall pick, though the right choice still depends on which specs matter most to you; the full spec table above breaks down every difference.

Beyerdynamic DT 990 Pro and Sennheiser HD 620S are compared side by side above across every spec in the headphones category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 25/100 for Beyerdynamic DT 990 Pro and 21/100 for Sennheiser HD 620S.

At launch, Beyerdynamic DT 990 Pro was the more affordable option ($179) versus Sennheiser HD 620S ($350). Weigh that against the overall scores (25/100 vs 21/100) and the value-for-money meter above to judge whether the higher-rated model justifies its price for your needs. Current retail prices vary — check the retailer.

If you want the higher-rated headphones option overall, Beyerdynamic DT 990 Pro (25/100) edges out Sennheiser HD 620S (21/100). But if Sennheiser HD 620S is cheaper or stronger on the specific specs you care about, it can still be the better buy — use the spec table and strengths profile above to decide.