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P 284 Mistral

Perfection without compromise

We present to you our masterpiece, the flagship of the PETROF brand - the Mistral concert grand. Measuring 2,840 mm in length it is our largest piano, and is beloved of musicians the world over chiefly for its tremendous bass and resonant treble. Artists find in it a trusty companion when performing the most demanding works; it also has a highly presentable appearance and possesses the soft, romantic tone so characteristic of all PETROF grand pianos.

Width - 1580 mm | 5'2"

Length - 2840 mm | 9'4"

Height - 1025 mm | 40 3/8"

Weight -  576 kg | 1270 lb


Black, high polish (0801)

Technical Specification

Hydraulic slow close fallboard mech.
Felts colour
red + black
PETROF sign on right side wall
Legs and castors
thick legs, big braked castors
left - Unacorda (Piano) pedal, middle - Sostenuto (Prolongement) pedal, right - Sustein pedal
Black keys
Ebony wood
Tangential sawn spruce wood, individually balanced with lead
Hammer heads
The highest quality hammerheads made in Germany, individually voiced
Dampers - number
1 - 69
Hitching of plain strings
Strings - material
steel wire Röslau Germany, copper winding Degen Germany
Duplexes - rear
ais - c5
Duplexes - front
d2 - c5
Agraffes material - number
brass, 1-53
Bridge pins
steel - ground tips
Bridge - bass
solid maple wood
Bridge - treble
solid maple wood
Outer rim - material
birch plywood sandwich, inner veneer Ebony Makassar
Cut off bar (corner cross rib)
round shaped, multiple birch or beech
Descant post material
Wooden frame posts
5 longitudinal + 2 cross
Inner rim thickness
50 mm
Inner rim material
12 laminas - beech, birch
Pin block - material
Multiplex beech plywood, density 800 - 850 kg/m3
Surfacing of iron plate
light gold metallic paint, diamond effect
Cast iron plate
Wet sand casting
Soundboard construction
diaphragmatic tapered by CNC shaper 9,5 - 7,5mm
Ribs (number, shape)
16, asymetric
Active area (m²)
Sound board material
Resonance spruce wood
Weight (kg)
Height (mm)
Width (mm)
Length (mm)
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