AMPLIFIER MOUNTING
MOUNTING LOCATION
Check the suitability of your preferred amplifier location carefully, before you start any
installation work. Try to select a place where you can be sure nothing gets damaged behind
or below the panel, when holes for the amplifier mounting are drilled. Be aware that once
the amp has been bolted in place, there should be a clearance of at least 5 cm to all sides,
which is required for cooling but also to gain access to the control panel for the adjustment
of the electronic crossover.
Attention! For your own safety, disconnect the negative (GND) battery terminal and
remove the main fuse of the 12V main power cable, before you start any wiring work!
MOUNTING
Once the location where the amplifier allows safe mounting has been found, use the amp
itself as template to mark the mounting holes with pencil or felt-tip marker. Pilot-drill the holes
using a 2.5 mm or 3 mm drill bit. The amplifier must be mounted isolated from the vehicle's
chassis ground or any other metal parts of the vehicle, to avoid ground loops (that cause a
loud low frequency hum). Bolt the unit in place with the supplied self tapping screws.
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CABLE ROUTING AND CONNECTION
RCA INTERCONNECTS AND REMOTE CABLE
Run the RCA interconnects and the remote lead from the head-unit to the amplifier. Note
that RCA interconnects must be routed separately from the main +12V power cable.
Connect the remote (turn on/turn off) lead to the REM input terminal of the amplifier and
to the amp remote output lead of your headunit. Now plug in the RCA interconnects to the
line-out leads of the head-unit and to the RCA inputs of the amplifier. Pay attention: The
left RCA plug (black) out must be connected to L-CH input, the right RCA plug (red) must
be connected to R-CH input.
For the SP-N1507 mono amplifier, mount the bass level remote control in the cockpit, within
reach of the driver's seat and route the cable to the amplifier. Insert the AT&T plug of the
remote wire into the Remote port located on the front panel of the amp.
LOUDSPEAKER WIRE
Route the speakers cables from the component system crossovers or from the terminals
of the coaxial speakers to the amplifier speaker terminal. Strip of the insulation, each wire
should have 6 to 8 mm bare wire ends, that need to be inserted to the terminal. Tighten
up the terminal screws. Always maintain correct electrical polarity of speaker wires to the
respective terminal („+" to „+"; „-„ to „-„).
MAIN POWER CABLES
Run the positive main power cable („+12 V") directly from the positive terminal of the car
battery to the amplifier. For protection of your car audio system against electrical short cuts
and fire hazards, you must insert a fuse holder within 30 cm of the positive pole battery
clamp. The applicable fuse value must match to the limitations of your main power cable
cross section and its purpose is to protect the vehicle from a shortcut of the +12V power
cable to chassis ground!
Connect the ground cable to the ground terminal input of your amplifier and the other side
of the cable to a clean and rust free ground point in your vehicle. A dedicated ground lug is
recommended for best (low resistance) ground connection.
Keep the ground cable („-12V") as short as possible. The ground power cable must have
the same wire cross-section as the positive power cable in use.
Tighten up both power input terminals, and double check for perfect fit!
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