The KXB1 is a 10-watt bass combo amplifier with a 6-inch Kustom speaker and Bass, Mid and Treble controls. It is designed to produce quality tones quickly and effectively. Whether you need a small amp for practicing at home or touring on the road, the KXB1 will deliver. Like every KXB amplifier, the KXB1 offers an auxiliary input for plugging in an MP3 or CD player to practice along with tunes and a 1/8-inch headphone input that silences the internal speaker for late-night playing.