AudioControl DM-810 8 x 10 out Matrix DSP Digital Sound Processor Audio Control

PRV Audio DSP 2.4X Crossover & EQ 4 Channel Full DSP Digital Signal Processor

PRV Audio DSP 2.8X Crossover & EQ 8 Channel Full DSP Digital Signal Processor

PRV Audio 8 Channel Digital Signal Processor Crossover and Equalizer DSP 2.8X

PRV Audio Digital Audio Processor/Crossover and Equalizer Four Channels DSP2.4X

8-Channel Car Audio DSP Processor with Bluetooth, Equalizer & App Control

8 Channel Car DSP Audio Processor

PRV Audio 8 Channel Digital Signal Processor Crossover and Equalizer DSP 2.8X