HIFIMAN Open-Back Planar Magnetic Headphones or HIFIMAN Sundara Closed-Back Planar Headphones? Which HIFIMAN Model to Buy
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When comparing the hifiman he400se stealth magnets version vs sundara closed back over, you see two planar magnetic options from HIFIMAN. Both models use stealth magnet technology to reduce sound distortion and offer wired connectivity for studio or audiophile use. The main difference lies in their acoustic design. The HE400SE features an open-back layout, while the Sundara Closed-Back uses a closed-back design. This distinction affects how sound interacts with your environment and your listening experience.
Key differences
| Aspect | HIFIMAN Open-Back Planar Magnetic Headphones | HIFIMAN Sundara Closed-Back Planar Headphones |
|---|---|---|
| Acoustic Design | Open-Back | Closed-Back |
| Driver Technology | Standard Planar Magnetic | NEO Supernano Diaphragm (NsD) |
| Ear Cup Material | Not listed | Hand-assembled beechwood |
| Weight | 13.8 ounces | 15.2 ounces |
Which one should you choose?
Choose HIFIMAN Open-Back Planar Magnetic Headphones if
- You prefer a lighter headphone for extended listening sessions.
- You want an open-back design that allows sound to escape, creating a wider soundstage.
- You are using the headphones in a quiet environment where sound leakage is not a concern.
Choose HIFIMAN Sundara Closed-Back Planar Headphones if
- You need sound isolation to block out external noise.
- You want a headphone with a unique aesthetic featuring hand-assembled beechwood ear cups.
- You prefer the faster response and detailed imaging provided by the NEO Supernano Diaphragm.
Verdict: Choose the HE400SE if you prioritize a lighter weight and the natural, expansive soundstage of open-back planar drivers. Select the Sundara Closed-Back if you require isolation from your surroundings and appreciate the refined build quality of wooden ear cups. Both models deliver high-fidelity audio through their shared stealth magnet technology.
HE400SE vs Sundara Planar Comparison
Acoustic Design
The HE400SE features an open-back design, allowing sound to pass through the ear cups. This creates a wider soundstage and natural imaging, ideal for critical listening in quiet environments. The Sundara uses a closed-back design, which isolates you from external noise and prevents sound leakage. This makes the Sundara better for noisy rooms or shared spaces. If you need privacy or use the headphones in public, the closed-back Sundara is the practical choice. For pure audio accuracy in a controlled setting, the open-back HE400SE offers a different sonic character. Your environment dictates which acoustic design serves you best.
Diaphragm Technology
The Sundara highlights HIFIMAN’s NEO Supernano Diaphragm (NsD), which is 80% thinner than standard diaphragms. This thinness allows for faster response and detailed imaging with lush, full-range sonics. The HE400SE also uses planar magnetic drivers with stealth magnets to reduce distortion, but the specific NsD technology is not mentioned in its published specifications. Both models aim for low distortion and accurate output. However, the Sundara explicitly details its advanced diaphragm construction. If you prioritize the specific engineering of a thinner diaphragm for speed and detail, the Sundara provides that documented advantage. The HE400SE focuses on stealth magnet transparency instead.
Build Materials
The Sundara features hand-assembled ear cups made from elegant beechwood. This natural wood grain adds a distinct aesthetic and may influence the acoustic properties of the enclosure. The HE400SE description mentions a newly designed casing for durability and protection from the elements, but does not specify wood or other premium materials. Both models prioritize comfort with lightweight headbands. The Sundara offers a unique material choice with its wood cups. If you value the look and feel of natural wood in your audio gear, the Sundara stands out. The HE400SE focuses on functional durability without specifying exotic materials.
Weight and Size
The HE400SE weighs 13.8 ounces and measures 10.5 inches in width. The Sundara is heavier at 15.2 ounces and slightly wider at 10 inches, but longer at 12.4 inches compared to the HE400SE’s 12 inches. The Sundara’s additional weight comes from its wood cups and robust construction. The HE400SE is lighter, which may enhance comfort during extended listening sessions. Both fit over-ear designs. If you prefer a lighter pair of headphones to reduce pressure on your head, the HE400SE has the edge. The Sundara’s heft is the trade-off for its closed-back isolation and wood construction.
Sensitivity and Source
The HE400SE is noted for high sensitivity, making it a perfect match for low-voltage sources like portable hi-res audio players. This means it can drive well with smaller devices. The Sundara does not list specific sensitivity ratings in the provided data. Both use wired connectivity with 3.5mm and 6.35mm adapters. If you plan to use these headphones with portable devices or low-power sources, the HE400SE’s high sensitivity is a clear benefit. The Sundara may require a dedicated amplifier or more power to reach similar volumes. Check your source device’s output if you choose the Sundara.
Which HIFIMAN Planar Headphones Fit You
You want an open, natural soundstage
The HE400SE uses an open-back design. This allows sound to pass through the ear cups. You get a wider soundstage and natural imaging. The planar magnetic driver with stealth magnets reduces distortion. This creates pure, full-range output. It is ideal for critical listening in quiet rooms where isolation is not needed.
You need sound isolation from others
The Sundara features a closed-back design. This blocks outside noise and prevents sound leakage. You get better isolation for shared spaces. The planar magnetic driver with stealth magnets ensures accurate sound. The closed enclosure focuses the audio directly into your ears. This makes it practical for environments where you do not want to disturb others.
You prefer lighter headphones for long sessions
The HE400SE weighs 13.8 ounces. This is lighter than the Sundara. The lightweight headband remains cool and comfortable. You can listen for hours without fatigue. The high sensitivity matches well with portable players. The durable casing protects the drivers. This makes it a practical choice for extended listening periods.
You want premium materials and detail
The Sundara features hand-assembled beechwood ear cups. These offer stylish looks and exceptional sonics. The NEO supernano Diaphragm is 80% thinner. This results in fast response and detailed imaging. You get lush, full-range audio. The detachable cable adds convenience. This combination of materials and tech suits audiophiles seeking refined sound.
The products compared
HIFIMAN Open-Back Planar Magnetic Headphones
Best for: accurate open-back planar sound
- Form Factor
- Over-Ear Open-Back
- Connectivity
- Wired, 3.5mm, 6.35mm adapter
- Audio Features
- Stereo
- Recommended Use
- Studio
- Driver Type
- Planar Magnetic
- Dimensions
- 12 × 10.5 × 7.09 inches
View on Amazon: HIFIMAN Open-Back Planar Magnetic Headphones Affiliate link
The HIFIMAN HE400SE uses open-back planar magnetic drivers with stealth magnets to reduce distortion. It connects via a wired 3.5mm cable with a 6.35mm adapter. The design prioritizes high sensitivity for low-voltage sources and comfort for long sessions. You get accurate sound reproduction in a lightweight over-ear build. This model suits listeners who prefer open acoustics and wired reliability.
Pros
- Planar magnetic drivers for lower distortion
- Stealth magnets reduce wave diffraction
- High sensitivity matches portable players
- Lightweight headband for comfort
Cons
- Open-back design lacks noise isolation
- Wired connection limits mobility
- Heavier build at 13.8 ounces
Good fit if
- You want accurate, full-range sound
- You use low-voltage audio sources
- You prefer open-back acoustics
Skip if
- You need wireless connectivity
- You require noise isolation
- You prefer lightweight under-ear styles
Verdict: HIFIMAN HE400SE Open-Back Planar Headphones deliver accurate sound through stealth magnets and planar drivers. You should choose this model if you prioritize sonic purity and wired performance in a comfortable, open-back design.
HIFIMAN Sundara Closed-Back Planar Headphones
Best for: isolated studio monitoring and focused listening
- Form Factor
- Closed-Back Over-Ear
- Connectivity
- 3.5 mm, 6.35 mm
- Audio Features
- Hi-Fi
- Recommended Use
- Studio
- Driver Type
- Planar Magnetic
- Dimensions
- 12.4 × 10 × 7.05 inches
View on Amazon: HIFIMAN Sundara Closed-Back Planar Headphones Affiliate link
The HIFIMAN Sundara features closed-back over-ear design with planar magnetic drivers. It uses stealth magnets to reduce sound reflection and a thin diaphragm for fast response. The beechwood ear cups and detachable 3.5mm cable add durability. You get studio-grade sound isolation. This model suits those needing privacy and detailed audio without open-back leakage.
Pros
- Closed-back design for sound isolation
- Planar magnetic drivers with stealth magnets
- Detachable 3.5mm cable with 6.35mm adapter
- Beechwood ear cups for acoustic benefit
Cons
- Heavier at 15.2 ounces
- Wired connection only
- Larger dimensions than compact models
Good fit if
- You need sound isolation from surroundings
- You prefer planar magnetic driver detail
- You want a wired studio connection
Skip if
- You require wireless Bluetooth connectivity
- You need lightweight portable earbuds
- You prefer open-back natural soundstage
Verdict: HIFIMAN Sundara Closed-Back Planar Headphones deliver isolated, detailed audio for studio or focused listening. You should choose this if you prioritize sound privacy and planar clarity over wireless convenience.
Specifications side by side
| Spec | HIFIMAN Open-Back Planar Magnetic Headphones | HIFIMAN Sundara Closed-Back Planar Headphones |
|---|---|---|
| Form Factor | Over-Ear Open-Back | Closed-Back Over-Ear |
| Connectivity | Wired, 3.5mm, 6.35mm adapter | 3.5 mm, 6.35 mm |
| Audio Features | Stereo | Hi-Fi |
| Recommended Use | Studio | Studio |
| Acoustic Design | Open-Back | Closed-Back |
| Driver Type | Planar Magnetic | Planar Magnetic |
| Dimensions | 12 × 10.5 × 7.09 inches | 12.4 × 10 × 7.05 inches |
| Weight | 13.8 ounces | 15.2 ounces |
| Color | Silver,Black | black&orange |
| Model | He400SE | SUNDARA Closed-Back |
| Size | not stated | adjustable |
Frequently asked questions
Is the HIFIMAN HE400SE open-back or closed-back?
The HIFIMAN HE400SE features an open-back acoustic design. This construction allows sound to pass through the ear cups rather than containing it. You benefit from a wider soundstage and more natural imaging. This design suits quiet environments where sound leakage is not a concern.
Does the Sundara have open or closed back design?
The HIFIMAN Sundara uses a closed-back acoustic design. This structure isolates the audio within the ear cups. You get better sound privacy and reduced leakage. This makes it suitable for studio monitoring or focused listening where you need to block out external noise.
What type of drivers do these HIFIMAN headphones use?
Both models utilize planar magnetic driver technology. This type of driver uses a thin diaphragm with conductive traces suspended in a magnetic field. The HE400SE and Sundara both employ stealth magnets to reduce distortion. This results in accurate and detailed audio reproduction for both units.
Are these headphones wireless or wired?
Both the HE400SE and Sundara are wired headphones. They do not contain built-in batteries or Bluetooth modules. You must connect them directly to your audio source using a cable. This wired connectivity ensures low latency and consistent power delivery for studio or audiophile use.
How much do the HIFIMAN HE400SE headphones weigh?
The HIFIMAN HE400SE weighs 13.8 ounces. This measurement reflects the total weight of the over-ear unit. The dimensions are 12 inches in length, 10.5 inches in width, and 7.09 inches in height. This weight distribution helps maintain comfort during extended listening sessions.
What is the weight of the Sundara closed-back headphones?
The HIFIMAN Sundara weighs 15.2 ounces. It is slightly heavier than the HE400SE. The physical dimensions are 12.4 inches in length, 10 inches in width, and 7.05 inches in height. The adjustable size accommodates different head shapes while maintaining a secure fit.
Which model is better for studio monitoring?
The Sundara is often preferred for studio monitoring due to its closed-back design. It provides sound isolation, preventing audio bleed into microphones. Both models are recommended for studio use, but the Sundara’s isolation offers practical advantages in professional environments where privacy and focus are critical.
Can I get accurate sound from the HE400SE?
Yes, the HE400SE delivers accurate sound through its planar magnetic drivers. The stealth magnet technology minimizes distortion for clear audio. You get stereo output with a wide soundstage. This model is ideal if you prioritize sonic purity and natural imaging in your listening experience.