Features 19" rack-mountable digital mixing processor unit. Up to 128 input/outputs. Features essential sound system signal processing functions including feedback suppression and auto-mixing. Description Product Description The D-2008SP Digital Mixing Processor Unit is designed to have up to 32 audio inputs and outputs in total. A built-in multiple signal processing functions permit the unit to be used as both a mixer and a signal processor. Its audio input/output and control ports can accept plug-in modules, making the unit have a maximum of 32 inputs or 32 outputs and up to 2 control modules.