P 131 M1 upright piano
P 131 M1 upright piano
P 131 M1 upright piano is also part of the highest, master built upright piano series. These are upright pianos with the greatest sound potential and that are therefore favourites of demanding professional pianists. They are suited not only to apartment interiors and music schools, but also piano recitals within an orchestra or in different public stages.     
For the M1 model, the customer will obtain a modern lightweight body.

Side view

a 602 mm ° 23,70“
b 1316 mm ° 51,81“
height Width - 1454 mm ° 57,24“
weight Weight – 230 kg ° 506 lb
P 131 M1
Length   (mm)    604
Width     (mm) 1454
Height   (mm) 1314
Weight   (kg) 230
Soundboard material solid resonance spruce wood
Active area of soundboard (m2) 1,222
Ribs - number, shape 10, spherical
Soundboard construction wedgewise tapered
Cast iron plate Wet sand casting
Surfacing of iron plate       light gold metallic paint, diamond effekt
Pin block - material Multiplex beech plywood, density 800 - 850 kg/m3
Wooden frame construction, material spruce wood, 3+2 posts
Cut off bar (corner cross rib) - material, number beech, 1
Cabinet material MDF, plywood, solid wood
Bridge - treble beech wood
Bridge - bass beech wood
Bridge pins steel-round tips
Agraffes - material, number brass, 88
Strings - material steel wire, copper winding
Hitching of plain strings  double
Dampers - number 1 - 70
Action top quality european action
Hammer heads top quality felt hammer heads
Keyboard spruce wood, individually balanced keys
Keys balancing, touch weight 52g in bass - 48g in treble
Pedals left - Unacorda, middle - Muffler (moderator), right - Forte
Castors yes
Felts colour red
Hydraulic slow close fallboard mech. on demand
Upright piano P 131 M1 - detail
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