I. Introduction You have purchased a very sophisticated subwoofer manufactured by ® ® Ultimate Sound. Founded in 1975, Ultimate Sound makes speakers for every car audio application, speakers for marine environments, enclosed speaker systems, amplifiers, accessories and other products. Our tradition of leadership and innovation in the audio industry continues with innovative products like U Subwoofers.
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Installation- Sealed Enclosures 1. Sealed enclosures provide excellent performance with U Subwoofers. They are the simplest enclosures to design and build. We recommend you choose a sealed design if you have not built subwoofer enclosures before. Remember to glue and screw all joints, using enough glue to make sure all joints are air tight.
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Recommended Vented Enclosures Volume 2.00ft / 56.6L Driver Displacement 0.14ft / 4.0L Port Displacement 0.05ft /1.42L Total Enclosure Volume 2.19ft /62.02L Port Diameter 3”/76mm Port Length 10.5”/265.65mm Tuning 27Hz 34Hz Volume 1.35ft / 38.21L Driver Displacement 0.08ft /2.27L Port Displacement 0.06ft /.85L Total Enclosure Volume...