Ernie Ball 9618EB Acoustic Soundhole Cover expert-sleepers Notch filter and 180º Phase

Notch filter and 180º Phase switch helps reduce feedback onstage

CDJ-850 cover

sound-on-sound

Easy to setup and operate

100W RMS total power per speaker

Ernie Ball 9618EB Acoustic Soundhole Cover expert-sleepers Notch filter and 180º PhaseERNIE BALL ACOUSTIC SOUND HOLE COVER 9618EB. The Ernie Ball Soundhole Cover suppresses unwanted noise and feedback, maximizing the output of your acoustic or acoustic electric guitars. The soundhole cover is designed to fit in most acoustic soundholes, while the durable rubber material is soft and will not damage your guitars surface. Protect your guitar from that undesired screech and hum while eliminating dirt and debris inside your guitar with the