The Kawai K-71 (often referred to as the K71) is a premium, Japanese-built 49-inch (125 cm) professional upright piano. Released as a specialized or limited edition model in the early 2000s (around 2002–2004), it stems from Kawai’s high-tier K-Series lineage
It was designed to give pianists the sonic depth, string leverage, and projection of a baby grand piano while maintaining the space-saving cabinet footprint of a traditional upright

• Made in Japan (Hamamatsu): The K-71 was manufactured entirely at Kawai's elite flagship facility in Japan, utilizing their highest-grade raw materials and traditional craftsmanship.
• The 49-inch Professional Scale: Standing at 125 cm tall, the K-71 features long bass strings and a expansive soundboard area. This allows it to deliver a rich, resonant, and thunderous lower register that eclipses shorter continental uprights. 
• Tapered Solid Spruce Soundboard: The soundboard is built using high-grade, straight-grained solid spruce that is tapered from the center out to the perimeter. This advanced design minimizes impedance and allows the wood to vibrate more freely, creating a warmer tone and longer sustain.\
• Action Technology Transition: Depending on the specific market and exact production month, the K-71 sits at a technological transition point for Kawai. Late-production batches (such as those from 2004) feature Kawai’s famous Millennium III Action with ABS-Carbon composite parts for ultimate climate stability, while earlier 2002 variations may utilize Kawai's Ultra-Responsive Action with standard ABS composites. Both systems eliminate the swelling, sluggishness, and warping commonly found in pure wood upright actions. 
• Grand-Style Lead Weighting: The wooden key sticks are individually weighted and balanced to match the leverage and smooth response of a grand piano, satisfying the rigorous technical needs of advancing or professional players