Hifiman Sundara

HiFi, OpenBack
Hifiman Sundara — The Gateway Drug to Planar

Every audiophile hobby has its gateway moment — the product that opens a door you can never close again. For many headphone enthusiasts, the Hifiman Sundara is exactly that. It’s the headphone that makes you realise what planar magnetic drivers can do, and it does so at a price that doesn’t require selling a kidney.

Build & Design

Improved significantly over earlier revisions. The current Sundara has a metal headband, comfortable pads, and a build that feels more robust than Hifiman’s reputation might suggest. At 372g it’s manageable, and the oval earpads accommodate most ear sizes comfortably. It’s not going to win beauty contests, but it feels like it’ll last.

The 3.5mm cable connectors are my one gripe — I’d have preferred a more robust connection, but it’s a minor complaint at this price.

Sound

Bass

Fast, clean, and surprisingly extended for an entry-level planar. The Sundara’s bass won’t rattle your teeth, but it delivers texture and speed that dynamic drivers struggle to match. Bass guitar lines are articulate, electronic sub-bass reaches deep enough to be convincing. Joshua Valour called it “the bass that converts dynamic driver fans to planar,” and I understand why.

Mids

Neutral-bright with good clarity. Vocals are well-presented, slightly thinner than the HD600’s lush midrange but with more detail and separation. Acoustic guitars have lovely string texture, piano has convincing weight. For the price, the midrange quality is remarkable.

Treble

Extended and airy with a slight brightness around 8-9kHz that adds excitement but can occasionally fatigue. It’s the Sundara’s one divisive characteristic — some find it energetic and engaging, others find it a touch hot. Through my Sparkos Gemini’s warmer voicing, it’s perfectly managed. Through a bright solid-state amp, it might need EQ for sensitive ears.

Soundstage & Imaging

Open and spacious for the price. Not Arya-level width, but a genuine step up from the HD600. Imaging is precise and separation is excellent — instruments occupy distinct spaces rather than overlapping. This is where the planar advantage becomes obvious.

Comparisons

Against my HD600, the Sundara is wider, faster, and more detailed, but lacks the midrange warmth and intimacy that makes the Sennheiser so special. They’re perfect companions rather than replacements. Against the Koss PortaPro — just to anchor the price perspective — the Sundara is everything the PortaPro hints at, fully realised.

Crinacle has consistently rated the Sundara as one of the best values in headphones, period. DMS called it “the no-brainer recommendation under $500.” Having lived with it alongside far more expensive headphones, I agree with both.

Verdict

Pros

  • Outstanding planar sound for the money
  • Good bass extension and speed
  • Wide, open soundstage
  • Improved build quality over predecessors

Cons

  • Treble can be bright for sensitive listeners
  • Midrange lacks the warmth of dynamic classics
  • Build still trails European competitors
  • Needs decent amplification to shine

Ratings:

  • Build & Design: 7 / 10
  • Sound: 8.5 / 10
  • Comfort: 8 / 10
  • Value: 9.5 / 10

The Sundara is the headphone I recommend to every friend who asks “what should I buy?” It’s the start of a wonderful, expensive journey.