CB.GUMA009 is a car audio component manufactured by German company Carmedia. It is a high-performance audio processor for car audio systems that enables the user to create their own sound. It is a full digital media mixer, combining a digital signal processor, microcontroller, and amplification system. It features multiple controls, including level, bass, treble, balance, and loudness. It also has input and output ports to connect with various car audio sources.