In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. This tried-and-true classic has set the standard for back-line bass amplification for two decades. Versatile and powerful, it drives multiple cabinets with ease. Its bi-amped power and custom voicing filters make it exceptionally controllable. It is light, rack mountable, tonally versatile, and delivers a bass sound that is warm, clean, and strong. Today it still tops the list of amplifiers that pro players, touring bands, and back-line companies rely on for the big gigs.