YAMAHA / VAD97600 (Old WU188000) Yamaha Sound Hole Cover [Compatible Models] ○ FG/FS Series ○ CPX Series ○ A Series ○ L Series Black New (Tried on? but unused) Yamaha's acoustic guitar and electric-acoustic guitar sound hole cover! This is a sound hole cover for Yamaha acoustic guitars and electric-acoustic guitars (electric-acoustics). It helps to suppress feedback and howling when connected to an amplifier. *Please note that we cannot investigate the compatibility of other company's products. I bought it for an acoustic guitar, but it didn't fit because the hole was not round, so I will sell it.