P 131 M1

Rigorous design, open heart

Because of the power and colour of its tone, we also place the P 131 M1 among the concert instruments of the Highest Series. This piano places no limits on the musicians’ art, creating generous space for their self-fulfilment. This piano is remarkable for the modern, simplified design of its cabinet, making it an ideal addition to many music schools and larger interiors.

Grand piano ground view

  • Depth - 600 mm | 23,62"
  • Height - 1455 mm | 51,73"
  • Width - 1310 mm | 57,2"
  • Weight - 253kg | 557 lb


Black, high polish (0801)
Mahagony, high polish (3281)
Walnut, high polish (2251)
* Other finishes per order
  • Technical specification
    Length (mm)   600
    Width (mm)1455
    Height (mm)1314
    Weight (kg)253
    Sound board materialResonance spruce wood
    Active area (m²)1,2222
    Ribs (number, shape)10, spherical
    Soundboard constructionwedgewise tapered, 9 mm in upper section - 7 mm in lower section
    Cast iron plateWet sand casting
    Surfacing of iron platelight gold metallic paint, diamond effect
    Pin block - materialMultiplex beech plywood, density 800 - 850 kg/m3
    Inner rim material-
    Inner rim thickness-
    Wooden frame postsspruce wood, 3+2 posts
    Descant post material-
    Cut off bar (corner cross rib)Steel-round tips
    Outer rim - material-
    Bridge - treblebeech wood
    Bridge - bassbeech wood
    Bridge pinsocel - zabroušené špičky
    Agraffes material - numberbrass, 88
    Duplexes - front-
    Duplexes - rear-
    Strings - materialsteel wire Röslau Germany, copper winding Degen Germany
    Hitching of plain stringsdouble
    Dampers - number1 - 70
    Hammer headsRenner
    Keys balancing, touch weight52g in bass - 48g in treble
    Black keysAcrylate plastic
    Pedalsleft - Piano pedal, midle - Muffler (moderator) pedal, right - Forte pedal
    PETROF sign on right side wall-
    Felts colourred
    Hydraulic slow close fallboard mech.yes