The KXPACBL is a set of 4 different cables designed to provide fully integrated operation of the KXPA100 with either the KX3 and KX2 (with KX2ACBL).
A: In order to reduce the cabinet size of the KX2 by 50% of the size of the KX3, we had to reduce the number of connectors on the left side of the KX2. To do this, the signals found in the KX3's ACC1 and ACC2 port were consolidated into the single ACC port. Therefore, to be able to use the KXPA100 and its standard cable set (the KXPACBL), the KX2ACBL cable was made so that you can have complete integration of the KX2 and the KXPA100.