Planar Magnetic Headphones and the HiFiMAN Lineup at a Glance
Planar magnetic headphones use a flat diaphragm suspended in a magnetic field, delivering low distortion, fast transient response, and an accurate, speaker-like frequency response that appeals to critical listeners and audiophiles. Within HiFiMAN’s audiophile headphone lineup, the HE1000SE, Arya Stealth Magnets Edition, and Sundara all share planar magnetic architecture yet target very different listeners. In short, HE1000SE is the reference choice for maximal detail and soundstage, Arya is the sweet spot for performance-per-dollar with a wide, lively presentation, and Sundara is the entry-level planar that gives you a taste of high-end speed and clarity without the flagship price. Your decision should hinge on how much you value ultimate resolution versus value, and how deep you are into critical listening and frequency response measurement culture.

Driver Technology: Nanometer Diaphragms and Stealth Magnet Designs
All three models are planar magnetic headphones, but their drivers are not created equal. The HE1000SE uses nanometer-thin diaphragms and acoustically invisible stealth magnets aimed at reference-quality sound and high detail retrieval for audiophiles at home, in the studio, or even with portable sources. Arya Stealth Magnets Edition borrows its driver architecture from the HE1000 V2, a driver described as one of HiFiMAN’s best, and combines it with a super-thin diaphragm and advanced asymmetrical magnetic circuit for fast response and low distortion. Its stealth magnet design minimizes magnetic field interference, improving signal integrity and imaging precision. Sundara scales the concept down with ultra-thin planar drivers that still deliver fast transient response and low distortion, making it a realistic entry point into planar sound for many listeners.
| Spec Focus | HE1000SE | Arya Stealth Magnets | Sundara |
|---|---|---|---|
| Driver type | Planar magnetic with nanometer diaphragm and stealth magnets | Planar magnetic based on HE1000 V2 with stealth magnets and super-thin diaphragm | Planar magnetic with ultra-thin diaphragm |
| Design goal | Reference-quality detail and low distortion for audiophiles | Fast response, wide soundstage, higher-level performance at accessible price | Entry-level planar with strong detail and planar bass at lower cost |
| Notable tech | Acoustically invisible stealth magnets, asymmetrical pads | Window shade system, asymmetrical magnetic circuit, angled connectors | Wide frequency range 6 Hz–75 kHz and high sensitivity for many sources |

Soundstage Imaging and Frequency Response Character
If you care about soundstage imaging and frequency response measurement, each model has a distinct personality. HE1000SE, as part of the HE1000 series that is an audiophile favorite, pushes for wide soundstage and high detail retrieval, leaning toward a reference-style tuning for critical listening and mixing work. Arya is described as fast, with a wide soundstage and “mind-blowing detail,” making it a strong competitor to other high-end open-backs for listeners who want an expansive, slightly brighter presentation that still images well. Its patented window shade system reduces internal reflections to widen the stage further. Sundara, by contrast, has a slightly counter-clockwise tilted frequency response with treble-focused but smooth tonality, tight bass that rolls off a bit in the sub-bass, and a frequency range of 6 Hz to 75 kHz. That makes Sundara excellent for value-focused listeners who still care about tonal balance and extension.

Comfort, Shared Caveats, and Which Headphone Fits Your Use Case
On comfort and ergonomics, Arya stands out with a lightweight build, ergonomic design, and a metal headband created for all-day wear. Its angled 3.5 mm connectors reduce stress on cables for a more reliable connection. Sundara is also praised as comfortable and “barely noticeable” at 372 grams, though one shared weakness is that its cups do not swivel, which can take time to get used to and may limit fit for some heads. HE1000SE uses thick asymmetrical earpads to support long sessions, reinforcing its role as a reference tool. In practical terms, choose HE1000SE if you want the most refined soundstage imaging and critical detail; Arya if you want near-flagship performance, a wide stage and lively tuning; and Sundara if you want a budget-friendly entry into planar magnetic headphones with strong value and low distortion.
Buy if / Skip if
- Buy the HE1000SE if you want a reference-tier planar magnetic headphone with maximized detail retrieval and wide soundstage for critical listening and studio work.
- Skip the HE1000SE if you are still exploring planar magnetic headphones and are not ready to commit to a flagship-level investment.
- Buy the Arya Stealth Magnets if you want fast transients, expansive soundstage imaging, and a brighter, detailed signature based on the HE1000 V2 driver architecture.
- Skip the Arya Stealth Magnets if you prefer a warmer, more relaxed tuning or rarely sit for focused listening sessions.
- Buy the Sundara if you want an entry-level planar magnetic option with strong value, tight bass, and an accessible treble-focused tonality.
- Skip the Sundara if you need swiveling cups or highly adjustable fit, since its fixed cups can be a comfort limitation for some listeners.









