THE NEW O-PORT is a guitar enhancement designed to improve the sound of any acoustic guitar. Tested under the scrutiny of acoustic engineers and world-renowned sound producers, the O-Port helps deliver a fuller, richer sound with noticeably increased sustain and harmonic range. This becomes particularly pronounced when the instrument is plugged in and amplified, resulting in a stronger signal to the internal pick-up and significant feedback control.


There are two sizes, Big 3.875 inches - 4 inches (9.843 cm - 10.16 cm) and Little 3.375 inches - 3.5 inches (8.573 cm - 8.89 cm) we suggest you measure the opening of your sound hole before purchasing. The O-Port material is custom blended for flexibility to prevent damage to your guitar finish and inlays. Your O-Port will suppress feedback and give your acoustic or acoustic electric guitar a fuller sound with more volume, better clarity and enhanced projection. Just measure your sound hole and choose the O-PORT that best fits.