Loudspeaker profiles are a snapshot of a single output:   Built-in Profiles The following profiles are built into the PLD and CXD series power amplifiers   QSC AD-S28Tw Sub AD-S32T Passive AD-S52 Fullrange AD-S52T Passive AD-S82 Passive AD-S82H Passive AD-C1200 Passive AD-C4T  AD-C4T-LP AD-C6T AD-C6T-LP AD-C42T Passive AD-C81Tw Sub...