Primacoustic | www.primacoustic.com The G-Trap is a standalone combination broadband absorber and bass trap that helps control excessive bass in a room while it acts as a gobo (go-between) for studio use. Its sound absorption is achieved by combining three acoustic principles into a single device: two 2-inch-thick absorptive panels of high-density fiberglass are mounted on front and back; a central rigid membrane acting as a soundblock for high frequencies and “impedance barrier” for low frequencies; and an air cavity inside the G-Trap’s Baltic birch plywood enclosure.
Primacoustic reports that the air cavity goes a long way to attenuate bass in the 100 Hz range. Shipped flat, the G-Trap can be assembled in less than 20 minutes. Its fiberglass panels come covered in black, beige, or gray fabric.