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INPUT
Connect preamp signal cables from the headunit to Rca Input of SS4.
OUTPUT
Connect Output Rea Jack to another amplifier's input.
GAIN ( 8V ~ 0.2V)
Matching the output voltage of the headunit's
RCA line-outs to SS4 input section.
HIGH PASS FILTER ( 20Hz ~ 5KHz )
Controls the high pass point for the speaker outputs.
HPF CROSSOVER SELECTOR
High Pass Filter selector determines whether SS2a/SS4a will operate in
High pass or full range mode.
in on position, it will play the frequency set on High Pass,
in off position, the High pass will have no effect
4. INSTALLATION
In case you install The M&S-Class amplifiers by yourself, please read owner's manual
and follow your installation steps very carefully.
Before you start your installation, please take all steps into consideration.
or, you can have Digital Designs authorized distributors to check installation and turn in
your car audio systems
4-1. MOUNTING PREPARATION
Disconnect the negative (—) battery cable before mounting The M&S-Class amplifiers or making any
connections. Check the battery and alternator ground (—) connections.
Make sure they are properly connected and Free of corrosion.
Before selecting a mounting location for The M&S-Class amplifiers, Pis take some concerns into
consideration with cooling efficiency and safety.
4-2. MOUNTING PREPARATION
The M&S-Class amplifiers use heavy-duty and good heat radiation heatsink design for avoiding
excessive heat from amplifiers' circuitry. But for better heat radiation performance, It is good to find
the mounting location, where you can install the M&S-Class amplifiers vertically with the heatsink
fins and better air flow around The M&S-Class amplifiers.
For the safety, you have to find dry and well ventilated location and make sure any cables and car
equipment are not interfaced with mounting location.
Be sure the mounting location and drilling of pilot cables for mounting will not present a hazard to
any cables, control cables, fuel lines, Fuel tanks, hydraulic lines or other vehicle systems or components
4-3. + 12V, GND, REM CONNECTION
+ 12V ( POWER CONNECTION )
Before mounting The M&S-Class amplifiers, disconnect the negative (—) wire from battery to
protect any accidental damage to amplifier and audio system.
The M&S-Class amplifiers are designed to use 0 gauge or 4 gauge power and ground connection.
LOW PASS FILTER ( 50Hz ~ 5KHz )
Controls the low pass point for the speaker outputs.
LPF CROSSOVER SELECTOR
Low Pass Filter selector determines whether SS2a/SS4a will operate in
Low pass or full range mode.
in on position, it will play the frequency set on Low Pass,
in off position, the Low pass will have no effect
POWER & PROTECTION INDICATOR
Power LED, Green-lit shows correct operation of The SS-Class Amplifiers.
Protect LED, RED-lits shows general malfunction, faulty connection and
thermal protection