SVS - PB-4000 Subwoofer - Gloss Piano Black

Fine-tune your bass experience with this SVS ported box subwoofer. It works with the SVS app for easy adjustment of EQ, crossover and other DSP settings, and its cool-running SVS Sledge Class-D amplifier provides efficient yet powerful performance. Select from standard, extended and sealed modes to achieve a desired frequency response of this flexible SVS ported box subwoofer.