Roswell R1 1000.1 Marine AmplifierRoswell Marine amplifiers feature calibrated crossover controls with differential RCA inputs for maximum noise rejection. Rated a Class-D amplifier, the design ensures low current draw from the battery whilst delivering increased power to the connected audio equipment. With nickel plated wire terminals and a fully conformal coated PCB's making this audio amplifier ready to stand up in marine environments. Roswell amplifiers feature a space saving stackable design with a lit logo power indicator. This super powerful Roswell amplifier is perfect for the R1 subwoofers and can run 2 R1 12" subs or 4 R1 10" subs.Product Features: Switchable Differential RCA Inputs; Conformal Coated PCB's; Nickel-Plated Wire Terminals; Bass Boost Control; Subsonic Filters; Stackable Design; Marine Grade Durability; Specifications: Dimensions: 1.9" x 7.06" x 11.125"; Frequency Response: 10 - 400Hz; High Pass Filter : 30 - 300 Hz; Low Pass Filter: 30 - 300 Hz; Bass EQ: 0 ~ 18dB @45Hz; Subsonic Filter: 10 - 55Hz; Continuous Power (RMS):; 4I(C) 400W; 2I(C) 675W; 1I(C) 1000W;