Ok so i was just sent the manual. here are the manual features and specs
FEATURES
Digital Class D Linkable Mono Block Amplifier
Daisy-Chain Through Output RCA
Dual MOS-FET PWM Power Supplies
Stable into 1 ohm and 2 ohm Parallel Amplifier Connection Availability
24 dB Low Pass (LPF) Crossover Variable
18 dB Bass Boost Equalization Control Variable
180 degree Variable Adjustable Phase Shift
24 dB Subsonic Filter Variable
****Selectable Switch for MASTER and SLAVE operation****
Speaker Short, Over Current, Thermal, and DC Portection Circuit
RCA Line Input and Line Out
Heavy Duty Cooper Layer Double Sided EPOXY PCB
2 x 0 Gauge (AWG) Battery Input Connectors
100% QC Testing and Warm UP
Efficiency: 86% at 4 ohm, 100hz
Operating Voltage: DC 10V ~ 18V Power Input
Damping Factor: Better 350 into 1 ohm
Wired Remote Bass Gain Controller with 5 Meter Flat Cable: Optional