The Vario Bass Control is a double-cross-section foam plug used to control the bass level by inserting it into the bass-reflex port on the rear of the speaker enclosure. The foam plug reduces the effective cross-section of the bass-reflex port in two steps. For bass-reflex ports with 70 mm and 55 mm diameter.

Product Specifications

Required per bass-reflex port:

1  foam plug, 70 mm or 55 mm diameter

Product Resources