User's Manual K&F PASSIOKLING & FREITAG GMBH © 2017 Version 3.0 Page 13 of 26If necessary, adjust the correct level balance with the output gain of the subwoofer on theK&F systemamp or systemrack.7.1.3 Controller Mode with Subwoofer in Overlap ModeIn full-range mode, the speaker PASSIO is compatible with all K&F subwoofers that are run inthe 100 Hz mode.This so-called 'overlap mode' can make sense for surround uses when the tops shouldtransmit the complete frequency spectrum and the subwoofer is used as an 'effect bass'.TipIn the overlap mode, the bass boost must not be switched on.7.1.4 Controller Mode with Subwoofer in 1-Channel ModeYou can operate the speaker PASSIO together with several K&F subwoofers on a singlecontroller channel. To do so, load the matching LSBlock for the speaker combination into thecontroller. For further information please see the user's manual of the subwoofers that aresuitable for 1-channel mode, e.g. PASSIO SUB 12/15.