1, function electronic piano has different functions, the price is also different. It is more appropriate to choose according to your own use and scope of application, and at the same time to verify the actual effect of all the functions.
2, sensitivity electronic control and mechanical action of the sensitivity to be high.
The purchase of electronic piano need to pay attention to the appearance, the size of the speaker power and the keyboard strength sensing sensitivity, the rationality of the functional layout, as well as the sound, accompanied by the expansion of the style of music and the effect of playing, as well as the piano's editability (for example, can be edited to the sound of the envelope, filters, accompanied by the style of the sound of the individual part of the volume, and so on).
Expanded information:
Electronic pianos require meticulous craftsmanship, and AC power transformers should be completely reliable. The touch of the keyboard should be consistent, the sinking degree should be appropriate, and all kinds of buttons and knobs should be accurate, flexible and reliable.
Check all the maneuvering parts such as buttons, drawbars, knobs, etc. to see if there are any abnormalities. This part of the check is important because it directly affects the playing.
Turn up the volume to the maximum point, close to the amplifier part (speaker) to listen, check whether there is a large AC noise. High-quality instruments should not be able to hear this noise, and the average instrument should not be too noisy.
Turn on the tone color (you can also add some other tones, referring to the dual-keyboard electronic keyboard), turn on the volume to a level slightly higher than the general playing volume, and then play. Play one note first, and then play a two or three note chord later. Check for *** vibration noise. If *** vibration noise is obvious, it means that some parts are loose or poorly assembled. High-grade piano or good piano should not have this phenomenon, ordinary piano *** vibration noise should not be too large.