In fact, you have understood that whether it is SQ or other brands, the price-performance ratio of signboards is definitely not the best. If you really like the shape and appearance of the piano and the band SUM 4/KLOC-0, it's okay if the price is acceptable. However, if you require cost performance, it is not recommended that you look at any signature. You can look at other models such as Std, Classic, etc. The price will be much cheaper, and it will not be the same from technology to timbre appearance.