Basic Application - Crunch Drive DRA850.2 User Manual

DRA1850.1D / DRA2550.1D / DRA3250.1D D-CLASS 1 CHANNEL AMPLIFIER APPLICATION

Basic application

These sub bass amplifiers can be used in any of the bi-amplification systems described in
this manual, replacing the 2 channel amplifiers as per the illustrations.
Interconnect cable checklist:
Connect the inputs to a suitable source, e.g. a head unit with good quality RCA cables.
Connect the LINE OUT to the inputs of the system highs amplifier.
Use at least #12 gauge speaker wiring. The amps have dual speaker terminals,
simplifying the hookup of multiple speakers. These are 1 channel amplifiers.
MONO LINE INPUT
VIA Y-ADAPTER
FROM MONO SOURCE
PARALLEL MONO
SUBWOOFERS
2-OHMS EACH MINIMUM
Crossover frequency control checklist:
LOW PASS: 80Hz (approximately 11 o'clock)
SUBSONIC:35Hz (approximately 1 o'clock)
BASS EQ: 12 o'clock max
Level control checklist:
Refer to the section "Setting up systems after installation for best performance"
Minimum final loudspeaker impedance: 1-Ohm.
DRIVE
FULL RANGE
STEREO LINE INPUT
Note: You can use the Radio/CD designated mono line output or a full range stereo line output.
For full range stereo line output, you will need an optional "Y-Adaptor" as shown.
TO BATTERY + 12 Volts VIA FUSE
REMOTE TURN-ON
CHASSIS GROUND
Y-ADAPTOR
NOT USED
MONO
SUBWOOFER