PLANET WAVES "SCREECHING HALT"SOUNDHOLE PLUGFeedback suppression for electro-acoustic guitars The Planet Waves "Screeching Halt" works by closing off the soundhole, effectively raising the resonant frequency of the guitar's air-cavity, making it less prone to Low-frequency feedback when amplified. The mute simply pushes into place and can be removed quickly and easily when required. The flexible rubber construction won't chip or scratch your instrument and the tapered design provides a good fit in most soundholes.
A soundhole mute is an inexpensive first line of defence in a getting a good feedback-free amplified tone, and when recording studio closing the soundhole can help reduce bass-boom from a microphone's proximity-effect when using close-micing techniques.
Suitable for most roundhole guitars with a soundhole diameter of approx 4"/100mm