D4S XPS

The Down4Sound D4S-XP28 DSP is engineered for those who want total control over their system. Designed with installers and competitors in mind, the XP28 gives you 2 inputs and 8 outputs, paired with precision tuning tools that go far beyond basic...

Take full command of your car audio system with the Down4Sound XPS610 DSP Processor. Designed for enthusiasts who want power and flexibility, the XPS610 gives you 6 switchable RCA/High-Level inputs and 10 RCA outputs, letting you build and fine-tune the...