In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. The AG 500SC is a high powered, lightweight head for every bass player. This bass head combines an easy to use yet versatile EQ with 500 watts of power to create the perfect amp for the gigging bassist. Features include 4 bands of active EQ with bright and deep switches, a flexible FX Loop and pure sounding D.I., and more!