Firstly, let's talk about the difference between high-end and low-end guitars:

There are many types of pianos on the market, including those made by factory assembly lines, small workshops, and individuals. So how to define what kind of piano is a low-end piano and what kind of piano is a high-end piano? Some manufacturers label their own high-end, mid-range, and low-end guitars. That's just a self promotion, not recognized by the market.

1. The press plate piano refers to a machine pressed back panel that is curved, not manually carved out from thick wooden boards. After using this type of piano for a period of time, the board is prone to deformation, greatly affecting the service life of the piano. For manufacturers, the advantage of doing so is that it greatly accelerates the speed of piano making, improves material utilization, and saves material costs. Many factory pianos priced at a few hundred yuan are pressure plate pianos. Pressure plate pianos are usually heavy, so weigh them in your hand and be careful if they are too heavy.

2. Poor selection of panel materials. Use pine wood with uneven or wide annual rings and soft panel material, and also use red pine wood with high oil content to make panels. The bass of this type of qin is often thin, and the sound is hazy and unclear.