The Audiophile's Gate 2026 | Curtain of Sound Opens

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Key Points

Key Takeaways

Read in 30 seconds

1
Open Your Ears
2
Open-Back vs Closed-Back: Closed-back (AirPods Max etc.) sounds inside head. Open-back (Housing is mesh) lets sound escape outside, reproducing air feeling (Air) as if being in concert hall
3
Sennheiser HD 600: Legend continuing to reign as reference since release in 1997. Too natural, adding nothing and subtracting nothing. 'Sound like water' is this
4
Hifiman Sundara: Planar Magnetic. Unlike dynamic type, super fast response. Monitor sound with high resolution that can hear even roughness of recording
5
The DAC/Amp: Cannot be fully driven by smartphone direct insertion. True value is demonstrated only through dedicated amp like FiiO K7 or iFi Zen DAC

Introduction: Harm of Noise Canceling

We are too used to blocking world with noise canceling when going out. But as price for that, do you feel “Sense of blockage”?

Quiet study at home. There is no noise to block there. Open your ears. Please feel reverberation (Decay) where sound spreads naturally and disappears.

1. The Reference: Sennheiser HD 600

“Goal of headphone swamp and starting point”. Audiophiles all over world call so.

Sennheiser HD 600

ASIN: B07Z82Y8BR

Common name Marble (Current is gray). Expressiveness of vocal is masterpiece. There is vividness as if singing in front of eyes. Repair parts are abundant, and if exchange ear pads and cables, it is lifetime thing usable for 20 years.

Amazon

The Sennheiser Veil?

It was once said “Sound like covered with curtain”, but it is misunderstanding. It is tuning that high tone does not sting and does not get tired even if listening for long time. If listening while reading with coffee in one hand, there is no better partner than this.

2. The Planar Speed: Hifiman Sundara

Planar magnetic type was expensive, but Hifiman caused price destruction.

Hifiman Sundara

ASIN: B088T14XB8

Because entire diaphragm moves uniformly, rise of sound is explosive speed. Snare of drum and cutting of guitar are pleasant. Resolution unbelievable in this price range.

Amazon

3. Comparison: Difference in Format

項目	Sennheiser HD 600	Hifiman Sundara
Driver	Dynamic	Planar Magnetic
Soundstage	Narrow (Intimate)	Wide (Open)
Fit	Strong side pressure (Until familiar)	Comfortable (Wide headband)
Amp Requirement	High (300Ω)	Medium (Current required)

4. The System: Prepare Upstream

These are not wireless. There is cable and amp is necessary.

Did you think “Inconvenient”? That inconvenience is ritual to face music. Turn volume knob of amp and wait for vacuum tube to warm up. That time is also time to prepare your mind.

Conclusion: Return to Listening

If listening as BGM, smart speaker is enough. However, if want to listen to finger usage of bassist and breath of singer of favorite song, open-back headphones are necessary.

It changes act of “Listening” from passive one to active one.