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Most people think about headphone sound in terms of specs. Frequency range. Driver size. Maybe impedance, if they are super technical.
But materials matter just as much. The stuff your headphones are made from affects how they handle vibration, resonance, and tone. Plastic, metal, and wood all respond to sound differently. And you can hear it, if you’re paying attention.
At thinksound, we didn’t choose wood because it reminded us of old station wagons. We chose it because it sounds better. Full stop.
How Wood Shapes Sound
Wood is naturally resonant. It doesn’t just hold sound — it responds to it. Plastic tends to absorb and flatten detail. Metal reflects too much, often making things feel sharp or artificial. Wood interacts with sound in a more forgiving way. It softens the harsh edges and fills out the missing warmth.
This becomes especially noticeable in the midrange, where the core of most music lives. That includes vocals, guitars, pianos, horns, strings, and snare drums — the elements that give a track its body and emotion. Wood brings out those textures without making anything feel forced or fatiguing.
In headphone housings, that translates to:
- Fuller, more grounded lows
- Clear and dimensional mids
- Crisp highs that don’t sizzle or spike
You don’t just hear the music. You feel it. There’s space between instruments. The mix breathes.
Why Walnut?
We use walnut for two main reasons: how it sounds and how it holds up.
Tonally, walnut has a tight, even grain that produces consistent, musical results. It’s dense enough to support deep bass without turning boomy, and flexible enough to avoid boxy or brittle tones. It adds warmth without deadening the detail.
And it’s renewable. Which matters to us, because designing headphones responsibly should not come at the cost of sound — and vice versa.
We also use Eastman Treva™, a plant-based bioplastic, for internal and structural components. Treva is engineered for acoustic damping. That means it keeps things solid, stable, and quiet. No weird vibrations. No plastic coloration. You won’t hear it, and that’s exactly the point.
Why Plastic and Metal are Challenging
Plastic is durable and easy to mold, which makes it popular — but has limitations with sound quality. It tends to absorb and deaden subtle frequencies, especially in the mids and highs, which can make music sound flat or muted. Metal has the opposite issue. It reflects sound aggressively, often adding a brittle edge that exaggerates treble and leads to listening fatigue. Both materials can cause unwanted resonance, rattling, or color that masks detail, which is why they need to be used carefully and balanced with other materials like wood.
We Build Around Sound, Not Trends
A lot of headphones are designed to grab attention. Shiny, sculpted, oversized. They might look impressive, but that doesn’t mean they sound good.
We start with what actually makes music better. Wood isn’t an aesthetic choice. It’s the foundation. Every pair of thinksound headphones is built from the inside out to serve the sound first. Because the material audio gear is made of changes how it sounds. And we think every part of your headphones should earn its place in the mix.