JBL-Marine 4-Channel power sports amplifier, 45 x 4

.The Apex Series PA454 powersports amplifiers deliver efficient Class D power, from an ultra-compact chassis, designed to fit into tight spaces and withstand outdoor environments without missing a beat. Available with 4-channels of output power, the Apex Series PA454 includes selectable front/rear electronic crossover frequency adjustment for quick and easy installation. Plus, it has been engineered for harsh conditions, with power and performance to meet the needs of most audio systems.
.Ultra-compact Aluminum Chassis
.Conformal-Coated PCB
.Full-Range Outputs and Selectable Crossovers
.Big Dynamic Power
.High- and low-level inputs
.Included components: 1 amplifier; Stainless steel mounting hardware; 4 high-level input adapters; 4 zip ties; Spare fuse; 2x JBL Sticker; Quick Start Guide