The link1500.1plus is the result of extensive engineering and development. The goal was an amplifier with the same power output at either 2 or 1 ohm. This amp makes 1500 watts RMS @ 2 or 1 ohm. This is achieved with our new dual rail voltage power supply. When setting up the amp, simply select the impedance of your subwoofer with the 4/2 or 1 ohm switch and the amp does the rest. At 13.11”x6.5”x1.65”, it is incredible small for a 1500 watt RMS amp. The link1500.1plus features our bassFREQ preamp, with a 24dB per octave crossover, an adjustable parametric EQ and a 24dB per octave subsonic filter. Like all Wāvtech amplifiers, the speaker level inputs of the link1500.1plus can handle up to 40V and have our adaptive loading technology. The optional linkRC remote allows for control of the subwoofer system from the vehicles front seat. The link1500.1plus is also compatible with OEM start/stop systems. link1500.1plus Features 1500 Watt Mono Amplifier 900 watts x 1 @ 4 ohms 1500 watts x 1 @ 2 ohms 1500 watts x 1 @ 1 ohm Only 13.11”x6.5”x1.65” Dual Rail Voltage Power Supply Fully Adjustable Parametric EQ Variable Low-Pass Crossover (-24dB/oct) Variable Subsonic Filter (-24dB/oct) Remote Level Control (RLC) w/Optional linkRC bassFREQ Bass Processor w/Parametic EQ Active Thermal Management Start/Stop System Compatible Adaptive OEM Load Technology 40V Input Capability Differential Balanced Inputs Variable Gain Adjustment w/Clip LED Auto Turn-On via DC-Offset or Audio Signal Detect Locking Detachable Hi-Level Speaker Terminals 0 Gauge Power/Ground Terminals Professional Grade Panel Mount RCA’s Compact Aluminum Chassis w/Detachable Mounting tabs link1500.1plus Specifications Input Sensitivity: SPK: 1-20Vrms, 2-40Vrms, RCA: 0.2V-5Vrms, 0.4V-10Vrms Max Input Voltage (SPK): 40Vrms Frequency Response: 500Hz (=0/-3dB) THD+N: 77dBA (1W, 4Ω)