The APART ACPR audio control panel has an input for SDQ5PIR speakers. The ACPR audio control panel has a line input on the back to the Euroblock connectors and one 3.2 mm stereo input on the front panel. This rear line input is used when no jack is inserted in the front panel jack connector. Inserting the jack automatically disables rear line input.

The APART ACPL audio control panel has an input for SDQ5PIR speakers. The ACPL has a brushed aluminum front. The LED on the ACPL indicates the power status of the active speakers. The connection to the active speaker is made with a CAT5 cable, which also takes care of the current.