An important feature of the amplifier CMP400 is the presence of high-level input jack. This device is necessary if the head unit does not provide a linear output to the power amplifier, in this case, the audio is taken from the output connector on the car radio speakers. With this Philips CMP400 compatible with receivers of all makes.
In addition, due to aluminum heat sinks used in the new amplifier Philips SMP400 provides powerful heat, preventing overheating of the system. Power supply to the MOSFET transistors can reduce energy consumption, and multi-level protection scheme from the changes in voltage in the on-board network increases the reliability of the amplifier. Car Amplifier Philips SMP400 appear on Russia's market in February 2010.