Description of RXA-F1: Over the years, the technology used to create audio amplifiers has grown by leaps and bounds. We consider it our mission to use our expertise in developing the latest technologies and to bring you the absolute best sounding amplifiers on the market. From its clean, sleek design to its high quality components, you will be amazed at the quality and power that these new Phenom amps offer.. . The RXA-F1 is a 4 channel high power amplifier with 1600w peak. 380 Watts (4 x 95 Watts @ 2 ohms). You can also bridge the amplifier and get 2 x 200 Watts bridged @ 4 Ohms. Here at Rockville we offer the best value in car audio. It has a fully adjustable 12dB/Octave cross over with differential circuitry. High Level inputs, also referred to as Speaker Level inputs, allow you to install the amplifier into your vehicle even if you do not have any preamp outputs available. That means you can install this amplifier to your factory or aftermarket receiver. Other features include Auto-Start Smart turn-on (This function senses when there is a signal from the head unit and automatically turns on the amplifier hence no need to run a Remote Turn-On wire), a fully adjustable 12dB bass equalizer, 2 ch/ 4 ch input mode switch, mute and delay soft start technology, and a crossover band-pass control. The RXA-F1 is protected by a full IC controlled circuit and has professional peak limiter circuitry guaranteeing distortion free musical playback at all levels.. . One last point I want to make about this amplifier is efficiency. The circuitry of this amplifier is a class A/B circuitry. Class A/B is known to have amazing sound quality. Pro audio amps usually all are class A/B. Class A/B however is not known for its efficiency. To make this amplifier more efficient we simulated a class “G” amplifier. Class G is technology that switches the rail voltage depending on how much power is being used. We have similar technology built into these class A/B amplifiers.