2 Alternatives to the HIFIMAN Sundara — One Cheaper, One More Refined

If you’re looking at the HIFIMAN Sundara, you’re probably after that fast, clean planar sound: tight bass, crisp transients, and a sense of control that many dynamic headphones struggle to match. But alternatives exist for a reason. Some trade a little raw detail for more natural vocals, some offer a larger soundstage, and some simply feel more premium on the head. Here’s how the closest rivals stack up in real listening terms.

1) Sennheiser HD 600 — £329.99

The Sennheiser HD 600 is the classic audiophile benchmark, and at £329.99 it sits a full £160.99 above the Sundara. That’s a serious jump, so this is not the budget-conscious choice; it’s the “I want a reference tuning” choice. The HD 600 is an open-back dynamic headphone with Sennheiser’s famously neutral, mid-focused voicing. Compared with the Sundara’s planar driver, the HD 600 does not hit with the same lightning-fast bass texture or sense of planar precision, but it does something many listeners value even more: it renders vocals and acoustic instruments with uncanny naturalness.

In practical terms, the Sundara tends to sound a bit more extended at the frequency extremes, with cleaner sub-bass definition and a more immediate sense of speed. The HD 600 counters with a smoother upper midrange and treble that is less likely to sound bright or sharp on long sessions. If you listen to jazz, folk, singer-songwriter material, classical strings, or older recordings, the HD 600’s tonal balance can be more forgiving and more believable. Its quoted impedance is 300 ohms, which means it benefits from a proper headphone amplifier with decent voltage swing; plug it into a weak source and it can sound polite and underfed.

Build quality is a major part of the HD 600’s appeal. The open metal earpiece covers and modular construction give it a reassuring, serviceable feel, even if it doesn’t look as sleek or modern as the Sundara. It is also very comfortable for long sessions, with a clamp that relaxes over time and a lightweight frame that disappears on the head for many users. The Sundara, by comparison, feels more contemporary and visually distinctive, but its build can feel a touch less substantial in the hand.

Verdict: choose the HD 600 if you value natural mids, a smooth non-fatiguing signature, and a proven reference sound above outright bass punch or planar speed. It’s the better headphone for critical tonal judgement and long listening sessions, but only if you’re happy to pay the premium and have enough amplification to drive it properly.

2) HiFiMAN Edition XS Stealth Magnets — £189.00

The HiFiMAN Edition XS is the most direct alternative here because it stays in the planar magnetic family, but stretches the sound and scale upward. At £189.00, it costs just £20 more than the Sundara, which makes it the more obvious “step up” if you want to stay close to the HIFIMAN house sound without making a huge financial leap. It includes a headphone travel case too, which adds a bit of practical value for anyone who takes their gear on the move or wants safer storage.

The Edition XS uses stealth magnets and a larger planar driver platform, and the real-world effect is a broader, more open presentation. Where the Sundara sounds clean and tightly organised, the Edition XS tends to sound more expansive, with a larger perceived soundstage and a more grand, effortless delivery. That extra scale is especially noticeable with orchestral music, live recordings, ambient, and gaming where placement cues matter. The trade-off is that the Edition XS can feel a little less intimate and slightly less punchy in the mid-bass than the Sundara, so if you love a more immediate front-row presentation, the Sundara may still feel more exciting.

On detail retrieval, the Edition XS is at least in the same league and often feels like the more ambitious headphone. The stealth magnet design helps reduce wave interference, which in listening terms can translate to cleaner treble behaviour and a more open top end. However, the larger frame means the fit is more polarising. The Sundara is generally easier to live with for a wider range of head shapes, while the Edition XS can feel a bit more awkward or loose depending on your head size. Build quality is decent rather than luxurious: both are modern HiFiMAN designs, but the Edition XS’s bigger structure and lighter-feeling materials won’t appeal to everyone who wants a tank-like premium feel.

The practical question is whether the extra £20 buys you enough improvement. For many listeners, yes. The Edition XS gives you a bigger soundstage and a more expansive planar presentation for only a small premium, and that makes it the best value alternative if you want to stay close to the Sundara’s strengths while moving the experience up a notch. It is still a relatively easy load compared with some high-impedance dynamics, but it benefits from a clean amplifier with good current delivery to show its full dynamic potential.

Verdict: choose the Edition XS if you want a larger, airier, more immersive planar sound and you’re happy with a slightly less intimate fit. It is the most compelling upgrade-style alternative here, especially for listeners who crave scale and openness more than warmth.

Which one should you pick?

If you want the closest thing to the Sundara but with a bigger, more cinematic soundstage, the Edition XS is the clear alternative. If you want a more mature, mid-focused, famously accurate tuning that flatters vocals and acoustic music, the HD 600 is the one to hear. The Sundara still holds its own because it sits neatly between these two: more planar speed and bass texture than the HD 600, but often a more compact and focused presentation than the Edition XS.

In buyer terms, the Sundara remains the value play for listeners who want true planar detail without going too far up the price ladder. The Edition XS is the more exciting technical step if you can stretch a little, while the HD 600 is the safer long-term reference if your priority is tonal realism over sonic fireworks. None of these are bad choices — they’re just tuned for different ears, different genres, and different kinds of listening pleasure.