There are several possible reasons for the dull sound of the piano. Maybe it's a problem with the piano material, maybe it's a problem with the structure of the body, maybe it's a problem with the strings, or maybe it's a problem with the method of playing.

If the sound of the piano is not transparent, it is often because the piano material is not loose enough (here refers to the panel. Although both the bottom plate and the top panel of the piano participate in the resonance, the bottom plate mainly plays the role of supporting the tone and shaping, and the main role in the resonance is the one. is the panel). Of course, there may also be paint gray problems. If it is pure antler gray, the sound is much better. In addition, the dullness of the piano is also related to the structure of the piano. For example, if the trough is too wide, the sound effect will be virtual. If the material is too thick, the sound will be dull and turbid. The same material, if the sound is required, the body of the piano can be made flat and so on. Furthermore, the lack of sound may also be related to the loose strings. Of course, if the sound is dull, it is also related to the technique of playing. And so on.

If there is a problem with the material of your piano, I am afraid there is no way to do it at present. Maybe a few more years of playing will make a difference. If there is a structural problem, you can also ask the famous qin master to make some adjustments. But this must be done carefully, because it may be very troublesome but not very sure. Tightening the strings will have some effect, but be aware that if the strings are too tight, the sound will also look burnt and lose rhythm. It's natural to put more effort into playing, I don't think I need to say more.

In addition, a good piano does not have to be very loud. If it is not loose enough (penetration and sound are not the same), it is indeed a fly in the ointment. But each piano has its own characteristics, if other aspects are good, it is still a good piano.