Soundstream have adopted the most optimum Class D performance, reliability, and smaller footprint platform for the Rubicon Nano series amplifiers. There are several key improvements; Rubicon Nano’s signal inputs, power/ground, and speaker connections are all relocated to the leading edge of the chassis for an easier, more attractive install. All pre-amp & crossover options are appropriately located on the top surface, making adjustments after installation conceivable. These amplifiers are equipped with an Automatic Hi-Level Signal Sensing Turn-On. There is no need to run a remote wire turn on; this amplifier will automatically detect the sound signal and turn on and off the amplifier. (Hi-Level Input only) Soundstream Soundstream believes that sound quality and performance is the #1 goal of their products. Soundstream has been a leader in mobile audio engineering and performance for the past 40 years and has earned over 90 industry awards for innovation and performance.