The ESB HR 10 US is an active underseat subwoofer designed to add deep bass to your vehicle without sacrificing cabin space. It features a 10-inch driver powered by a Class AB amplifier, delivering 130 W RMS and a maximum power of 260 W to ensure a full, rich sound. With a frequency response ranging from 10 Hz to 150 Hz and a sensitivity of 92 dB, this unit effectively fills the lower end of your audio spectrum. Its compact housing is constructed from aluminum, measuring 261 mm in length, 346 mm in width, and 78.5 mm in height, which allows it to fit discreetly beneath the seat. You can connect it using either low-level RCA or high-level inputs, the latter of which supports an auto power-on feature for easier integration with factory systems. To tailor the sound to your preference, the subwoofer includes controls for input gain, a low-pass filter, bass boost, and phase control, and it comes with a remote for convenient adjustments while driving.