| Length (mm) | 2750 | |
| Width (mm) | 1580 | |
| Height (mm) | 1025 | |
| Weight (kg) | 690 | |
| Sound board material | solid resonance spruce wood | |
| Sound board active area | 1,880 m2 | |
| Ribs (number, shape) | 16, asymetric | |
| Soundboard construction | diaphragmatic | |
| Cast iron plate | wet sand casting | |
| Surfacing of iron plate | gold metalic paint, diamond effect | |
| Pin block - material | hard rock maple from Canada | |
| Inner rim material | beech wood | |
| Inner rim thickness | 50 mm | |
| Wooden frame posts | spruce-beech laminated, 5 longitudinal + 2 cross | |
| Descant post material | beech wood | |
| Cut off bar (corner cross rib) | round shape, multiple beech | |
| Outer rim - material | birch plywood sandwich, inner veneer: Olive wood | |
| Bridge - treble | solid maple wood | |
| Bridge - bass | solid maple wood | |
| Bridge pins | stainless steel-ground tips | |
| Agraffes (material, number) | brass, gold plated, 1-53 | |
| Duplexes - front | d2 - c5 | |
| Duplexes - rear | d1 - c5 | |
| Strings - material | steel wire, copper winding | |
| Hitching of plain strings | single | |
| Dampers - number | 1-69 | |
| Action | top quality european action | |
| Hammer heads | top quality felt hammer heads | |
| Keyboard | spruce wood, individually balanced keys | |
| Keys balancing, touch weight | 55g in bass - 50g in treble | |
| Black keys | Ebony wood | |
| Pedals | Unacorda (Piano) pedal, Sostenuto (Prolongement) pedal, Forte pedal | |
| Castors | brass, braked castors | |
| PETROF sign on right side wall | ANT. PETROF | |
| Felts colour | red | |
| Hydraulic slow close fallboard mech. | yes |
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