The TRI-XO is a flexible easy to use 3 way electronic crossover with subwoofer control. The TRI-XO has been designed with infinitely adjustable asymmetrical electronic crossovers using frequency multipliers that can multiply frequency crossover points at a slope rate of 18dB per octave using a 3^rd order Butterworth design. With the infinitely selectable crossover points, system settings become an art of precision. There are three sets of RCA inputs and three sets of 5V outputs with a selectable 180◦ Phase switch. Engaging the parallel input feature can reduce the number of RCA source outputs while the supplied under dash remote bass gain can boost output @ 50Hz up to 18dB