If your system requires a 1 ohm stable amplifier, but doesn’t need the power of link1500.1plus, the link750.1plus is the solution. Utilizing our proprietary Dual Rail Voltage Power Supply, the amp produces the same power output at either 2 or 1 ohm. During installation, select the impedance that matches your subwoofers using the 4/2 or 1 ohm switch and the amp does the rest. The link750.1plus can handle up to 40V and has our adaptive loading technology for OEM systems. It is also compatible with OEM start/stop systems. The bassFREQ preamp has a 24dB per octave crossover, adjustable parametric EQ and 24dB per octave subsonic filter for the best subwoofer tuning possible. It is compatible with the optional linkRC remote control. link750.1plus Features 750 Watt Mono Amplifier 400 watts x 1 @ 4 ohms 750 watts x 1 @ 2 ohms 750 watts x 1 @ 1 ohm Small Footprint Only 10.25”x5.5”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 4 Gauge Power/Ground Terminals Professional Grade Panel Mount RCA’s Compact Aluminum Chassis w/Detachable Mounting tabs link750.1plus 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: 78dBA (1W, 4Ω)