Petrof Grand piano P 284 Mistral

PETROF P 284 Mistral acoustic grand piano

PETROF P 284 Mistral is the 284 cm flagship concert grand piano of the PETROF brand. Its large string scale, 2.029 m² soundboard, and wide resonance reserve combine powerful bass, a singing middle register, and a treble that projects freely in a large hall.

PETROF's European grand piano tradition

PETROF continues the tradition of Czech piano manufacturing founded by Antonín Petrof in 1864. The Master Series line features a high share of manual labor, selected European materials, and individual voicing tailored to the model, shaping PETROF’s recognizable soft, rounded, and romantic tonal character.

Resonance spruce soundboard

The soundboard, made of resonance spruce with an active area of 2.029 m², is thinned to suit the model's string scale. 16 ribs support the elasticity of the soundboard and the even distribution of string energy. The result is a warm fundamental tone in the bass, a singing timbre in the middle register, and a clear, yet non-harsh projection in the treble.

Construction and tonal stability

The cast-iron plate, manufactured using the wet sand casting method, supports high string tension. A multi-layer beech pinblock, an inner rim constructed from layers of beech and maple, solid maple bridges, and German-made Röslau steel strings work together for resonance transmission, tuning stability, and long-term durability. Brass agraffes for keys 1–53 and front-rear duplex scales precisely control the speaking length and harmonic structure of the strings.

Action, keyboard, and pedals

The RENNER ORIGINAL action transmits the pianist’s touch to the hammers quickly and with control. German-made hammer heads are individually voiced for each instrument. Tangentially cut spruce keys are individually balanced with lead, with ebony wood used for the black keys. Unacorda, sostenuto, and sustain pedals provide full expressive possibilities for the classical grand piano repertoire; the hydraulic soft-close fallboard ensures safety for daily use.

Key features

• 88-key acoustic grand piano
• RENNER ORIGINAL grand action
• Individually voiced premium hammer heads
• 2.029 m² resonance spruce soundboard
• Wet sand cast iron plate
• Röslau steel and Degen copper-wound strings
• Brass agraffes for keys 1–53
• Unacorda, sostenuto, and sustain pedals
• Hydraulic soft-close fallboard

Dimensions and weight

Who is the PETROF P 284 Mistral suitable for?

The P 284 Mistral is designed for large concert halls, professional stages, conservatories, and high-end recording studios.

Exterior finish and mechanical options may vary depending on the market and configuration. Technical specifications are subject to change by the manufacturer.