Rubicon amplifiers are all new. We adopted the optimum class D performance, reliability, and footprint of the Picasso Nano platform and present to you Rubicon Nano. At first glance, you'll notice several key improvements. Rubicon Nano's signal inputs, power/ground, and speaker connections are all re-located to the leading edge of the chassis, for an easier, more appealing install. All pre-amp & crossover options are conveniently located on the top surface, making adjustment after installation possible. What you might not notice are additions to the circuit board, including increased power supply & output stage components, & monoblock bridging capability.