P 194 Strorm kuyruklu piyano standart serinin içinde en kuvveti ses potensiyeli olan kuyruklu piyanodur. Piyanistlerin özel kullanımları, yüksek müzik okulları klupler ve küçük konser salonlarında verilen resitaller için uygundur. Karekteristik PETROF tınısına sahiptir.
a - 1525 mm
b - 1940 mm
Yükseklik - 1025 mm
Ağırlık - 365 kg
| Length (mm) | 1940 |
| Width (mm) | 1525 |
| Height (mm) | 1025 |
| Weight (kg) | 365 |
| Sound board material | Resonance spruce wood |
| Active area (m²) | 1,311 |
| Ribs (number, shape) | 12, spherical |
| Soundboard construction | wedgewise tapered 9 - 7 mm |
| 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 | 45 mm |
| Wooden frame posts | 4 longitudinal |
| Descant post material | spruce |
| Cut off bar (corner cross rib) | straight, beech |
| Outer rim - material | Sandwich, solid alder wood core, plywood coated, inner veneer Ebony Makassar |
| Bridge - treble | solid maple wood |
| Bridge - bass | solid maple wood |
| Bridge pins | steel - ground tips |
| Agraffes material - number | brass, 1-50 |
| Duplexes - front | h1 - c5 |
| Duplexes - rear | fis1 - c5 |
| Strings - material | steel wire Röslau Germany, copper winding Degen Germany |
| Hitching of plain strings | single |
| Dampers - number | 1 - 69 |
| Action | standard RENNER - PETROF |
| 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 | standard legs, small unbraked castors |
| PETROF sign on right side wall | PETROF |
| Felts colour | red + black |
| Hydraulic slow close fallboard mech. | yes |
