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Concerto Grand Piano

Concerto Grand Piano

Sonus Faber Concerto Grand Piano (1998)

Two-way, two speaker floorstanding loudspeaker with passive radiator.

¾" silk-dome tweeter (SEAS 19TFF-SF)
7" acrylic-treated paper-cone woofer,
7" acrylate/"carbonium"-cone passive radiator.
Crossover Frequency: 2.3kHz.
Frequency response: 40Hz-20kHz, ±3dB.
Impedance: 8 ohms nominal.
Sensitivity: 87dB/1W/1m.
Power requirements: 30-200W.
Dimensions (HxWxD): 39½" x 9½" x 11½" (abt. 100 x 24 x 29 cm)
Weight: 60 lbs / 27 kg each.
RRP: USD 3500/pair (1998)
Optional stone isolation bases: USD 500/pair.

SONUS FABER - Artisan of Sound.

Sonus faber S.p.A. (est. 1983) is based in the small town of Arcugnano, Vicenca province in North-Eastern Italy.

Sonus Faber speaker models are hand-bulit and differ from most other speaker manufactureres models, in that they were built from solid, seasoned wooden staves (called slats - evidently dried two years in a kiln). The staves are hand-picked one by one "so as to control the harmonic structure of the resonances". Each chosen stave are clamped and hot-glued to the next, and thereafter hand-sanded and varnished like a fine violin, explaining why these speakers are not of an average design.

The side panels, fabricated from 1"-thick contoured MDF and finished in gloss-black lacquer, are acoustically decoupled by the folded-over leatherette. They're screwed-in and glued, the goal being to reduce the low-frequency acoustic influence of the large, flat side panels on the drivers.