The way a piano sounds depends in part upon the condition of its hammers. A piano that sounds too loud, brash or tinny, too muffled or drab, or is inconsistent in tone from note to note, could benefit from a procedure called voicing. This generally involves needling the hammer felts, or sometimes applying a solution to modify the hammers. The instrument must be fine tuned, however, before decisions can be made regarding its tone. Other factors must be considered, such as room acoustics, the state of the soundboard, bridges and strings, and your piano model's actual sonic potential. If you are not happy with your piano’s sound, I would love to discuss with you the possibility of improvement through voicing the instrument.