Dual DA604D Installation & Owner's Manual page 8

INSTALLATION
Configuration/Setup
Input level Control
until audible distortion is heard, then slightly
Crossover Mode
LPF
HPF
FLAT
Note: Choose FLAT
professional for recommendations.
Crossover Frequency
Control
Bass Boost
Subsonic Filter
(DA501D and
DA801D)
designed to handle.
LED Indicators
POWER
PROTECT).