4-Pin Speaker Level Input / Power Plug DSP Processor Wāvtech Wavtech bassRESTOR

3-Pin Power Ground Remote Plug DSP Digital Signal Processor DS18 DSP4.8BTM

4-Pin Processor / High Level Input / Power DC / Remote Plug MiniDSP Mini DSP

4-Pin Speaker Level Input / Power Plug DSP Wāvtech Wavtech Link Plus Mini

4-Pin Processor / High Level Input / Power DC / Remote Plug MiniDSP Mini DSP

DS18 Equalize EQX7 Pair of 4 Pin Hi-Low & Power Plug

4-Pin Power / Ground Plug AUDIOCONTROL EQL EQX LC7 LCQ EPIC MATRIX EPICENTER

4-Pin Speaker Level Input Output Plug Connector Amp OSD SMP-500DSP Amplifier