The Blackstar U500 Unity Pro 500W 2x10 Bass Combo has been developed from the ground up by bassists, to produce a versatile amp for any level of user. Equipped with a mighty 500 watts and two custom designed Eminence 10" Opus speakers , the U500 delivers ultimate tonal flexibility, perfect for the gigging musician. Despite its simple design, this powerful amp allows you to quickly and easily find the perfect tone to suit your needs with incredible projection. The U500 features a 4 band EQ, along with 3 voices, including Classic, Modern and Flat, perfect for a variety of applications. Additional features include footswitchable sub-octave and Chorus, MP3 input,USB audio out for direct recording, XLR/D.I outputs and many more.