Why can I hear faint resonances and other sounds from notes on my digital piano?
This is normal — it reflects advanced sound modelling including sympathetic resonance, hammer noise, and soundboard resonance.
Hearing various subtle tones, resonances, and mechanical sounds from your Kawai digital piano is normal and reflects the instrument's sophisticated sound modelling technology.
These sounds include sympathetic string resonance (where unplayed strings subtly resonate in sympathy with played notes), hammer strike and key release sounds, and soundboard resonance on hybrid models. These details are all part of what makes the instrument sound authentically like an acoustic piano.
This is not a defect but a deliberate feature of advanced piano sound design. If a specific sound seems unusually prominent or is accompanied by a malfunction, contact your Kawai dealer.