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Upright piano P 135 K1

P 135 K1

The exceptional heritage of our ancestors

Meet the tallest upright of the PETROF brand, which boasts the greatest sound potential. Its size makes it ideal for discerning professional pianists and audiences. This is an instrument of masterly construction intended for music schools, home interiors, and for the performance of musical works with orchestra. Its uniqueness is enhanced by the unusual design of the music stand, but lies most of all in its powerful, open and colourful tone.

upright piano ground view

  • Depth - 606 mm | 23 7/8"
  • Height - 1350 mm | 53 1/8"
  • Width - 1448 mm | 57"
  • Weight - 256 kg | 564 lb


Black, high polish (0801)
* Other finishes per order
  • Technical specification
    Depth (mm)   606
    Width (mm)1448
    Height (mm)1350
    Weight (kg)256
    Sound board materialresonance spruce wood
    Active area of soundboard(m²)1,222
    Ribs - number, shape10, 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
    Wooden frame construction, materialspruce wood, 3+2 posts
    Cut off bar (corner cross rib) - material, numberbeech, 1
    Cabinet materialMDF, plywood, solid wood
    Bridge - treblebeech wood
    Bridge - bassbeech wood
    Bridge pinssteel-round tips
    Agraffes material - numberbrass, 88
    Strings - materialsteel wire Röslau Germany, copper winding Degen Germany
    Hitching of plain stringsdouble
    Dampers - number1 - 70
    Pedalsleft - Piano pedal, midle - Muffler (moderator) pedal, right - Forte pedal
    Felts colourred
    Hydraulic slow close fallboard mech.yes
    P_135_K1pdf219.31 KB

Would you like to play and not disturb your surroundings? Try the adsilent system.

After installing the adsilent system into your piano, you will hear its sound in your headphones and thus you will not disturb your surroundings.

Recommended benches

Let us recommend a suitable chair.

Bench 105


Height: 480-580 mm
Width: 550 mm, Depth: 320 mm

Prices on request from your dealer.

Bench 105 CAP

Height: 470-570 mm
Width: 570 mm, Depth: 340 mm

Prices on request from your dealer.

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