Sennheiser

HD 505

The Sennheiser HD 505 delivers a comfortable, spacious open-back sound with clear vocals at a good value, but suffers from bass lightness, sound leakage, and a plasticky build.

Summed up from 8 published reviews

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What reviewers like

Comfortable, lightweight design for extended listening sessions 1 2 3 4
Spacious open soundstage with natural imaging 1 2 3 4
Detailed, balanced sound with clear vocals 1 2 3 4
Detachable locking cable for easy replacement 3 4 6

What they don't

Open-back leaks sound, offers minimal isolation 1 2 3 4
Bass lacks punch and low-end substance 1 2 4 5
Build feels plasticky, not premium 1 2 4 6
Nonstandard 2.5mm cable limits replacement options 2 3 6 7

Best for

Home listening, vocal-centric music, long sessions

Skip it if

Need isolation, strong bass, portable use, gaming

Where it fits

use: Music
fit: Over-ear
connection: Wired
noise cancelling: Not needed

Specs

Fit: Over-ear
Connection: Wired
Noise cancelling: No
Best for: Music
Microphone: No mic
Ear cups: Open-back

Also worth a look

Questions

Is the Sennheiser HD 505 worth it?

The Sennheiser HD 505 delivers a comfortable, spacious open-back sound with clear vocals at a good value, but suffers from bass lightness, sound leakage, and a plasticky build.

What do reviewers like about the Sennheiser HD 505?

Comfortable, lightweight design for extended listening sessions. Spacious open soundstage with natural imaging. Detailed, balanced sound with clear vocals. Detachable locking cable for easy replacement.

What are the downsides of the Sennheiser HD 505?

Open-back leaks sound, offers minimal isolation. Bass lacks punch and low-end substance. Build feels plasticky, not premium. Nonstandard 2.5mm cable limits replacement options.

Who should buy the Sennheiser HD 505?

Home listening, vocal-centric music, long sessions. Skip it if need isolation, strong bass, portable use, gaming.

Sources

We don't test products ourselves. This page sums up 8 published reviews, read on October 23, 2026; each point above links to the reviews that make it.