P237 Monsoon Grand

P237 Monsoon Grand


The Monsoon grand boasts a refined, balanced sound, which is best suited to large music halls and recording studios. It has a characteristic romantic tone, and allows musicians complete scope for the expression of their feelings with its faultless action and speed of response. This is an instrument built by the best and most experienced masters of their craft. It represents the optimal balance between size and performance and makes for an impressive addition to a prestigious hotel or any other formal space.

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Technical Specifications

Length (mm) 2370

Width (mm) 1565

Height (mm) 1025

 Weight (kg) 521

Soundboard material Resonant spruce wood

Active area (m²) 1,616

Ribs (number, shape) 14, asymmetric

Soundboard construction diaphragmatic tapered by CNC shaper   9,5 - 7,5mm

Cast iron plate Wet sand casting

Surfacing of iron plate light gold metallic paint, diamond effect

Pin block - material Multiplex beech, density 800 - 850 kg/m3

Inner rim material 12 laminates - beech, birch 

Inner rim thickness 50 mm

Wooden frame posts 5 longitudinal + 1 cross

Back post material spruce

Cut off bar (corner cross rib) round shaped, multiple birch or beech

Outer rim - material birch, inner veneer Ebony Macassar

Bridge - treble solid maple wood

Bridge - bass solid maple wood

Bridge pins steel - ground tips

Agraffes material - number brass, 1-53

Duplexes - front d2 - c5

Duplexes - rear g1 - c5

Strings - material Röslau steel wire from Germany, Degen copper winding from Germany

Hitching of plain strings single

Dampers - number 1 - 69

Action standard - Renner original

Hammer heads Renner original

Keyboard Tangential sawn spruce wood, individually balanced with lead

Black keys Ebony wood

Pedals left - Soft pedal, middle -  Sostenuto pedal, right - Sustain pedal

Legs and castors thick legs, large braking castors

PETROF logo on right side wall PETROF

Felt colour red + black

Hydraulic slow close fallboard mechanism yes