Description
We present to you our masterpiece, the flagship of the PETROF brand – the Mistral concert grand. Measuring 2,840 mm in length it is our largest piano, and is beloved of musicians the world over chiefly for its tremendous bass and resonant treble. Artists find in it a trusty companion when performing the most demanding works; it also has a highly presentable appearance and possesses the soft, romantic tone so characteristic of all PETROF grand pianos.
| Length (mm) | 2840 |
| Width (mm) | 1580 |
| Height (mm) | 1025 |
| Weight (kg) | 576 |
| Sound board material | Resonance spruce wood |
| Active area (m²) | 2,029 |
| Ribs (number, shape) | 16, asymetric |
| Soundboard construction | diaphragmatic tapered by CNC shaper 9,5 – 7,5mm |
| Cast iron plate | Wet sand casting |
| Surfacing of iron plate | light gold metallic paint, diamond effect |
| Pin block – material | Multiplex beech plywood, density 800 – 850 kg/m3 |
| Inner rim material | 12 laminas – beech, birch |
| Inner rim thickness | 50 mm |
| Wooden frame posts | 5 longitudinal + 2 cross |
| Descant post material | spruce |
| Cut off bar (corner cross rib) | round shaped, multiple birch or beech |
| Outer rim – material | birch plywood sandwich, inner veneer Ebony Makassar |
| Bridge – treble | solid maple wood |
| Bridge – bass | solid maple wood |
| Bridge pins | steel – ground tips |
| Agraffes material – number | brass, 1-53 |
| Duplexes – front | d2 – c5 |
| Duplexes – rear | ais – c5 |
| Strings – material | steel wire Röslau Germany, copper winding Degen Germany |
| Hitching of plain strings | single |
| Dampers – number | 1 – 69 |
| Action | standard – RENNER ORIGINAL |
| Hammer heads | RENNER original |
| Keyboard | Tangential sawn spruce wood, individually balanced with lead |
| Black keys | Ebony wood |
| Pedals | left – Unacorda (Piano) pedal, middle – Sostenuto (Prolongement) pedal, right – Sustein pedal |
| Legs and castors | thick legs, big braked castors |
| PETROF sign on right side wall | PETROF |
| Felts colour | red + black |
| Hydraulic slow close fallboard mech. | yes |
