the box pro Achat Amprack Rock n Roll containing: 1x the t.amp TSA 2200 power amplifier, 1x the t.amp TSA 4000 power amplifier, 1x the t.racks Achat DSP 24, 1x Thon 8U Case on wheels, 1x connection-patchbay and 1 x power strip; the system is wired, programmed and configured for ACHAT118 subs and ACHAT112 tops!