Alpine R-A90S Owner's Manual page 17

Front 3-Way System
When using the Front 3-Way System, set each switch as follows.
ode Input Channel
tch Selector Switch
5/6) (CHANNEL-3/4)
LP
Input Channel
Selector Switch
(CHANNEL-5/6)
1/2 1/2
Speaker Input Level Switch
[LO]
Remote Turn-On Lead
Head Unit, etc.
Crossover Mode Crossover Mode
Selector Switch Selector Switch
(CHANNEL-1/2) (CHANNEL-3/4)
HP-H
ALPINE R-A90S 68-35792Z94-A (EN/FR/ES)
Crossover Mode
Selector Switch
(CHANNEL-5/6)
BP LP
15
-EN
EN
FR
ES