The Yamaha B1 TC3 upright piano combines Yamaha’s b‑Series acoustic design with the advanced TransAcoustic™ TC3 system, allowing true acoustic piano touch and resonance, while also offering volume control, silent headphone mode, and Bluetooth connectivity.

Key acoustic specifications include an 88‑key keyboard with b Series Special hammer action, key surfaces of white keys in acrylic resin and black keys in phenolic resin. The cabinet dimensions are approximately 149 cm width × 109 cm height × 54 cm depth, and the weight is about 198 kg.

The TransAcoustic™ TC3 system incorporates Yamaha’s specially developed transducer that vibrates the soundboard so that digital sounds resonate naturally through the acoustic cabinet. With wireless Bluetooth MIDI/audio and Yamaha’s Articulation Sensor System under each key, the piano reproduces expressive nuances and supports modern connectivity for apps and recording.

• Model: B1 TC3 (b‑Series Compact Upright)
• Keys: 88 full size
• Hammer type: b Series Special
• Dimensions (W×H×D): approx. 149 cm × 109 cm × 54 cm
• Weight: approx. 198 kg
• Key surfaces: White – acrylic resin; Black – phenolic resin
• Pedals: Damper / Silent mode (Silencing) / Soft
• Technology: TransAcoustic™ TC3 – volume control, headphone mode, Bluetooth audio/MIDI
• Connectivity: USB, AUX In, Bluetooth