1 Connecting the remote lead
The remote lead is connected to the automatic antenna
(aerial positive) output of the head unit (radio). This is
only activated if the head unit is switched ON. Thus the
amplifier is switched on and off with the head unit.
2 Connecting the ground cable
The ground cable should be connected to a central
ground reference point (this is located where the nega-
tive terminal of the battery is grounded at the metal body
of the vehicle), or to a bright bare-metal location on the
vehicle chassis, i.e. an area which has been cleaned of all
paint residues.
3 Connecting the battery cable
Connect the +12 V cable to the positive terminal of the
battery. Recommended cross section: min. 10mm
2
.
4 Fuses
The input fuses are connected in parallel and provide
protection against an internal equipment fault, i.e. the
system must be additionally protected by a further line
fuse located in the vicinity of the battery (max. distance
from battery: 30 cm). The fuse ratings are 2 x 30 ampe-
res, and both must be installed as the amplifier protec-
tion rating is 60 amperes (2 x 30 A).
5 - 8 Signal inputs
The HXA 500 MK II/HXA 500Q MK II have RCA
connectors for cinch cables leading from the pre-ampli-
fier outputs, the line outputs of the head unit or the out-
puts of a pre-amplifier/equalizer, e.g. HXE 100. These
connectors are gold-plated in order to ensure better sig-
nal transmission. High power outputs of radios or simi-
lar units cannot be connected directly on the amplifier.
9 Signal input selector
If only one stereo signal is available (i.e. 2 cinch leads
connected), the inputs can be connected from A to C and
from B to D by setting the selector switch to position 2.
When the selector is set to position 1, all the inputs are
separate.
1
Connecting the remote lead
2
Connecting the ground cable
3
Connecting the battery cable
4
Fuses
5 - 8
Signal inputs
9
Signal input selector
10 - 13
Level controls for input sensitivity
14
Active low pass filter
15
Level control for subwoofer amplifier
16
Subwoofer amplifier input selector
17 - 18
Plug - in frequency crossover modules
19
Selectors switch channels A and B
20
Selectors switch channels C and D
21
Cinch input and output
22
Speaker connection terminals for
channels A and B
23
Speaker connection terminals for
channels C and D
24
Speaker connection terminal for the
subwoofer
25
Setting the center frequencies
26
Level control for raising the cut - off
frequencies
27
Band width adjustment
28
Phase control
29 - 31
CPS-Colour Protection System
32
Bridged Selector
9
HXA 500 MK II
HXA 500 Q MK II
