Orion 425 HCCA - PLANNING YOUR CAR AUDIO SYSTEM; A. USING EXISTING SPEAKERS; B. USE OF A CROSSOVER MODULE

PLANNING YOUR CAR AUDIO SYSTEM
It is important that you decide what you are trying
to achieve. Car audio systems can vary from merely
upgrading your existing factory installation to multi¬
amplifier systems that include equalizers, bridging
modules, crossover modules, low pass filters, high pass
filters, and a variety of speakers. This-section contains
the simple approaches to audio system design to the
very complex. By studying the diagrams, you will see
that you can start with a relatively simple system that
can gradually grow by adding accessories and additional
amplifiers.
A. USING EXISTING SPEAKERS
If you want a good performance system without having
to install special speakers, a single 225 HCCA amplifier
will do an excellent job for you. A basic single ampli¬
fier system is shown in figure 1.
(1) Adding Equalization. To improve the system even (2) Front and Rear Speakers. If your car is equipped
o 'o fr~
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— 1 ■ 1 T —1
Speakers
Right
RCA Cables
Figure 1. Basic Single-Amplifier System Using
Existing Speakers
more, you could add an equalizer, such as an
ORION 300 PRQ Pre Amp Equalizer, 600 EQM
Equalizer, or 500 PMQ Parametric Equalizer (see
page 6). The equalizer would be inserted in the
system between the deck and the amplifier as
shown in figure 2.
RCA Cables
DIN Cable
ORION 300 PRQ
PRE AMP
EQUALIZER
Speakers
Right
Yellow (+)
Black/Yel I ow (-)
"Phantom Power (+15V & -15VI is supplied to all
ORION accessory modules by the amplifier through
the DIN cable. /fTN
f V/+15V
-' 5 v ~ v, S\
LEFT— W ft RIGHT
DIN CONNECTOR
-AUDIO
GROUND
Figure 2. Basic Single-Amplifier System Using
an Equalizer and Existing Speakers
with front and rear speakers, you will want to use
a separate amplifier for each pair of speakers as
shown in figure 3. A single 4-channel 425 HCCA
could also be used for this system (see figure 16).
DECK
o j o h ■ — n.
' l 1
r ~r t - i
Q
. r ::i—i
r i i
^ ORION 225 HCCA
Black/Yel (-)
1
REAR
SPEAKERS ' sra ""
Orange(+) Left
Black/Or (-)
Figure 3. Basic Two-Amplifier System Using
Equalizer and Existing Front and Rear Speakers