PETROF P 131 M1 Acoustic piano

PETROF P 131 M1 upright piano

PETROF P 131 M1 combines concert-grade sound power at a height of 131 cm with clean, modern cabinet lines. Its powerful bass and colorful middle register provide the pianist with a wide range of expression.

Highest Series and the PETROF sound character

PETROF's piano manufacturing tradition, which has continued in the Czech Republic since 1864, focuses on creating a soft, rounded, and romantic tone through the use of resonance spruce, a model-specific string scale, and individual voicing. In the Highest Series, the PETROF P 131 M1 offers bass depth appropriate for its height, a singing middle register, and a clear treble.

Resonance spruce soundboard

The resonance spruce soundboard with an active area of 1.2222 m² is reinforced by 10 ribs. The soundboard profile is engineered to convert string vibrations into a wide dynamic range and balanced register transitions. The wet-sand-cast iron plate, multi-layer pinblock, and maple bridges maintain string tension and ensure tuning stability.

Action and keyboard

The PETROF upright action and individually voiced hammer heads ensure fast and precise transmission of touch. The 88 keys create a natural sense of resistance from bass to treble. The left piano pedal softens the tone, the middle moderator pedal reduces volume for quiet practice, and the right forte pedal raises the dampers to release resonance.

Construction and daily use

Röslau steel strings, a solid wooden back frame, and a hydraulic soft-close fallboard create a reliable structure for long-term teaching and practice. The simplified modern cabinet design maintains professional dimensions without creating visual weight in spacious interiors.

Key features

• 88-key upright piano
• PETROF upright action
• Individually voiced hammers
• 1.2222 m² resonance spruce soundboard
• 10 soundboard ribs
• Wet-sand-cast iron plate
• Maple bridges and Röslau steel strings
• Piano, moderator, and forte pedals
• Hydraulic soft-close fallboard

Dimensions and weight

Who is the PETROF P 131 M1 suitable for?

Suitable for music schools, conservatories, teacher studios, large home interiors, and serious daily practice.

External finish and technical configuration may vary by market. Technical specifications are subject to update by the manufacturer.