The biggest advance in subwoofer technology in the last 15 years is here! The Epicenter EP500 is the first subwoofer of its size to truly go down to a virtually bottomless depth of 19 Hz in an anechoic environment. How is this possible? With the help of XLF, of course! XLF (a DSP chip) enables the EP500 to deliver spectacular deep bass -- as low as 15 Hz in a room! Finished in Black Oak with Black Grille.