Fender 810 Pro 1,000-Watt 8x10-Inch Bass Amp Cabinet Four chambered and ported sections that each contain two 10" Fender Special Design Eminence cast-frame drivers that deliver a pulverizing punch across the largest stages. High-frequency compression driver horn adds brilliance and can be adjusted with the attenuator on the back. Handle and wheel placement and rear slide rails make maneuvering and vehicle loading easier.