Digital Signal Processor Amplifier JBL DSP Amplifier is an audio processor for fine-tuning of aftermarket audio systems It is a self-contained audio system with 6-channel audio inputs 8-channel powered audio outputs an easy to use tuning interface a novice can understand and detailed tuning capabilities to satisfy even experienced installers With a USB connection to access the tuning interface using a Windows PC you can control fully variable crossovers selectable 0-to-48dB slopes time delay 31-band parametric or graphic EQ adjustment assignable input to output mixer with input channel summing channel gain master volume control clipping indicator to ensure the audio output is not distorted and ability to save up to 10 presets