Ossa000
Ossa Reserve a pair

Sound, castin stone.

Ossa is a speaker cut from one block of volcanic glass. Thirty-eight kilograms of silence around two drivers, polished for forty hours.

38 kgObsidian & basaltTwo drivers

A speaker that is also the quietest object in the room.

Explore the stone

Three materials.
One block.

Move across each frame — the light follows you.

01

The obsidian body

Volcanic glass, bored for the mid-driver and polished until the room reflects in it.

02

The copper driver

A 12 cm cone behind a hand-spun copper ring. The only part that moves.

03

The basalt base

Twenty-one kilograms of matte stone that keep the floor still while the music moves.

02 — The cut
CrownThe tweeter housing is one turned cap. No seam, no gasket.
BodyA 12 cm bore carries the mid-driver through solid glass.
BaseThe mass that keeps the room still while the music moves.

Three cuts.
One stone.

Every speaker is sliced on a 1.2 m diamond saw, bored, then reassembled in the order the block was cut.

03 — The sound

You feel it first.

Low end0
Peak0
Resonance0
i
Night studioLisbon
ii
GalleryPorto
iii
LoftBerlin
iv
GardenDusk
04 — The roomsOne stone, four lights · i / iv
05 — The order

Two editions.
Twelve a year.

Monolith

One speaker. Mono, the way a room actually hears.

from 4 900 €

Pair

Two speakers cut from the same block, so they age together.

from 9 200 €