That is, when the guitar is plugged in, there will be a sound entering the hole, then the pickup will pick up the echo of the 2 reverberations again, which will form an infinite loop of sound. At this time, the speaker will make a harsh sound, this is Howling, in order to prevent 2 reverberations, installing a guitar sound hole cover on the hole can effectively prevent the echo from entering the hole, that is, preventing whistling.
The guitar sound hole cover of the 41-inch acoustic guitar made by the company is designed for the EQ acoustic guitar. The sound hole diameter is 10cm. It is quick and easy to install and remove, which helps to protect the sound hole. The soft rubber covers the edge and does not damage the guitar. .
Edit by Height Musical Instrument News Department