The AVA1202 graphic equalizer is a high-fidelity signal processor/preamplifier that that allows you to graphically view and individually control a number of different frequency bands in a stereophonic system. It is intended for use in a car audio system which includes amplifiers in the signal path after the equalizer, and provides front, rear, and subwoofer low level outputs via RCA connectors. The AVA1202 consists of several audio filters, each centered at a specific frequency in the audio range. It enables you to cut or boost the output level by up to 12 decibels as desired at the following frequencies: 60Hz, 150Hz, 400Hz, 1kHz, 3kHz, or 20kHz. The AVA1202 also features a bass enhancement circuit called X-Bass. This allows you to add additional emphasis to the bass frequencies in the audio spectrum.