[BRING ON THE BASS: A highly efficiency Class D subwoofer amplifier that serves up big bass with up to 500W max power WORKS WITH ALL RECEIVERS: Compatible with older and newer source equipment and includes LFE line-level and speaker-level inputs for greater flexibility ADJUSTABLE CONTROLS: Includes adjustable phase and low pass filter to dial in just the right amount of low frequency sound effects EFFICIENT CLASS D TECHNOLOGY: A highly efficient Class D sub amp that is ideal for budget-minded users who want a feature-rich digital sub amp that does not run hot or take up a lot of space COMPACT DESIGN: Measures only 3” inches high 9 ¼” deep and 16 ¼” wide to fit just about anywhere]