ANT. PETROF 136 Acoustic piano

ANT. PETROF 136 acoustic piano

ANT. PETROF 136 is a premium upright piano standing at 136 cm, offering sound power approaching that of a concert grand, a wide color palette, and high mechanical stability.

The ANT. PETROF premium line and the PETROF sound character

PETROF’s piano manufacturing tradition, continuing in the Czech Republic since 1864, focuses on creating a soft, rounded, and romantic tone through the use of resonant spruce, model-specific string scaling, and individual voicing. Within the ANT. PETROF premium line, the ANT. PETROF 136 offers bass depth commensurate with its height, a singing middle register, and a clear treble.

Resonant spruce soundboard

The resonant spruce soundboard, with an active area of 1.2039 m², is reinforced by 11 ribs. The soundboard profile is designed to translate 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 to support tuning stability.

Action and keyboard

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

Construction and daily use

Röslau steel strings, a solid wood back frame, and a hydraulic soft-close fallboard create a reliable structure for long-term teaching and practice. The two-stage top lid and split upper frame allow for the regulation of sound projection into the space; the monumental cabinet is designed for professional interiors.

Key features

• 88-key acoustic piano
• Renner–ANT. PETROF action
• Individually voiced hammers
• 1.2039 m² resonant spruce soundboard
• 11 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 ANT. PETROF 136 suitable for?

It is designed for professional pianists, conservatories, large teaching rooms, and those seeking a concert-level upright instrument for spaces where a grand piano cannot fit.

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