Electrical Connection
Ground (GND)
This wire is the electrical ground and must be fastened securely to the vehicle chassis. The best
method is to use a threading sheet metal screw since the threads cut into bare metal. Ensure that all paint or other insulation is
remove from around the hole area, and using self tapping screw, securely affix the bare wire ends to the vehicle chassis. Use as
short a piece of cable as possible - use the same gauge as was used for the +12V cable. Make sure that the connection is safe, a
loose connection may result in amplifier noise and fault condition.
Remote (REM)
Many radios or other music sources have an output terminal for connection of the remote turn-on of
the power amplifier. If a radio doesn't have a remote turn-on feature, then you can use the antenna
relay wire, which activates the antenna motor. Please note, if the power antenna retracts when the
radio is operating, then you cannot use the antenna relay wire to operate the remote turn-on.
Batterie Connection (+12V Power)
This wire is usually connected directly to the positive battery
terminal. Ensure that the + power supply wire is fused via an
assigned fuse in line with the + power supply wire. Please use
a sufficient gauge for the installed amplifiers (min. 16 mm²).
This connection must be completed using spade lug with
insulating sleeve.
Fuses
The integrated amplifier fuses protect the units from short
circuit and overload.
Phase Shift Settings
In the most cases the built-in position of the Subwoofer is not optimally to the position where the listener takes place.
You have to imagine that the Signal of the Subwoofer is a sinus curve. That means at the upper and lower excursion
of the sinus curve the subwoofer reaches its maximum level. But the problem is that the driver do not often sit at the position where the
sinus curve has its maximum excursion.
When you move your head the amount of bass is changing in some cars. This is a sign for a wrong built-in position
of the subwoofer.
Figure 1: Subwoofer-system without PhaseShift. The Bass is not good and have no pressure.
Figure 2: With changing the Phase you can virtuelly move your subwoofer, so the listner sits in the maximum level of the sinus curve.
So the Subwofer is more pressureful.
Phaseshift
11
without PhaseShift
Figure 1
Subwoofer
Sinuscurve
with PhaseShift
Figure 2
Subwoofer
Sinuscurve with PhaseShift
