HiFiMan SUNDARA Closed-Back Headphones

A Closed-Back Take on a Best-Selling Planar Design

The HiFiMan SUNDARA Closed-Back brings hand-assembled beechwood earcups to HiFiMan's acclaimed SUNDARA planar magnetic headphone, trading the original's wide open-back soundstage for genuine isolation and a noticeably emphasized bass response overall.

Stealth Magnets and a Super Nano diaphragm carry over directly from the open-back SUNDARA, shaped specifically to reduce the wave interference a conventional planar driver can introduce into the final signal path itself.

The Super Nano diaphragm is up to 80% thinner than the diaphragms in more common headphones, contributing directly to an ultra-wide 6Hz-50kHz frequency response with genuinely fine sonic detail captured throughout.

Where the Beechwood Earcups Earn Their Keep

Hand-Assembled Wood, Chosen for Isolation and Bass

Each beechwood earcup is hand-assembled rather than molded from plastic, sealing off outside noise while emphasizing the natural bass response already present in almost any genuinely well-recorded track you own.

That closed-back seal trades away some of the open SUNDARA's expansive soundstage in exchange for genuine isolation, a fair trade indeed for anyone listening somewhere other than complete, total silence at home.

Stealth Magnets, Carried Over From the Open-Back Original

Stealth Magnets are shaped specifically to let sound waves pass through with minimal interference, reducing the wave diffraction a conventional magnet array tends to introduce into the final signal itself.

A classic ergonomic headband keeps the closed-back version comfortable over long sessions, paired with a detachable dual 3.5mm cable and a 6.35mm adapter already included right in the box itself for you.

What Reviewers Are Saying

Headfonics's dedicated review of the SUNDARA Closed-Back found the isolation and bass emphasis genuinely delivered on HiFiMan's promise, with real hands-on measurements confirming the low-end character.

Audiophilia found the SUNDARA Closed-Back "lively, comfortable, and clear," describing it as "a very good acoustic chamber-like" pair of headphones for everyday listening.

Who Is the SUNDARA Closed-Back Best For?

• You want SUNDARA's planar sound with real isolation: the beechwood earcups seal out background noise the open-back original can't
• You want emphasized, natural bass response: the closed cavity reinforces low-end energy that the open design lets escape
• You listen somewhere other than total silence: a shared home, an office, or anywhere outside noise would otherwise intrude
• You already own (or plan to add) a headphone amplifier: the Stealth Magnet driver still rewards a quality amp behind it
• You want isolation from a planar — the closed-back SUNDARA keeps the music in and the room out

How Does It Connect to Your System?

A detachable cable with dual 3.5mm plugs connects at each earcup, terminating in a 3.5mm connector with a 6.35mm adapter included for desktop headphone amplifiers.

Because the earcup connectors are standard 3.5mm, an aftermarket cable drops in easily if you want a different length or a balanced connection down the road.

Pairs Well With

What finishes the system around a SUNDARA Closed-Back:

• Headphone amplifiers — unlocks the dynamics and control this Stealth Magnet driver is capable of
• Digital-to-analog converters — a clean digital source feeding your amp matters as much as the amp itself
• Headphone cables — the standard 3.5mm connectors accept a wide range of aftermarket options
• Headphone stands — a proper resting spot between listening sessions

Frequently Asked Questions

How is this different from the open-back SUNDARA?

The closed-back version uses hand-assembled beechwood earcups for isolation and bass emphasis, trading away some of the open version's wider, more spacious soundstage.

Do I need a headphone amplifier?

It's recommended, though not strictly required. The Stealth Magnet driver responds well to a dedicated amplifier, delivering noticeably more control and detail than a phone alone.

Does closed-back mean it blocks outside noise completely?

Not completely, but genuinely well. The beechwood earcups seal significantly better than the open-back SUNDARA, though no closed headphone isolates as fully as active noise cancellation.

Can I use a balanced cable with the SUNDARA Closed-Back?

Yes. The standard 3.5mm earcup connectors accept aftermarket cables terminated for a balanced connection if your amplifier supports one.

Why choose beechwood specifically?

HiFiMan's engineers chose beechwood for its acoustic properties inside a sealed cavity, contributing to the natural bass emphasis this version is known for.

Are the earpads replaceable?

Yes. The earpads are a wear item and are designed to be swapped out over time, since pad condition affects both comfort and the seal against your ear.

See It in Action

SoundStage! Network presents HiFiMan Sundara Closed-Back Headphones Review - SoundStage! Take 2.

Passion for Sound presents Will SOMEONE make a good closed headphone!? HiFiMan Sundara Closed.

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Learn More

Want to learn more about planar magnetic headphones, headphone amplifiers, or getting the most from a closed-back design? Visit our Learning Center for guides, tips, and expert advice.