ALF40 Connection Options
Passive 2.1: The output of an ALF40 in most situations will match a pair of
AIW1X or AIW3X speakers (2x ALF40 might be necessary to match a pair
of AIW3X in a large room). The ALF40 is designed to be connected in
parallel with an AIWX series speaker (the APU2 forms part of what is
effectively a crossover between ALF40 and AIWX). In this scenario, one of
the amplifier channels (Left or Right) is used to drive the ALF40 and one of
the AIWX speakers together. It is assumed that bass frequencies are
normally mixed in mono; however for orchestral music better performance
will be obtained with the ALF40 connected to the Left channel of the
amplifier.