20-watt bass combo amplifier with a 12-inch Kustom speaker and Bass, Lo-Mid, Hi-Mid and Treble controls. It provides the right amount of power and EQ to dial in classic, thumping bass tones or more aggressive, modern tones. Like every KXB amplifier, the KXB20 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. All KXB Series amplifiers provide a five-year, transferable electronics warranty to give buyers extra piece of mind with their purchase.