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 ampli-
fier 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 negative 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 bat-
tery. Recommended cross section: min. 10mm
2
.
4 Fuses
The input fuses are connected in parallel and provide pro-
tection against an internal equipment fault, i.e. the system
must be additionally protected by a further line fuse loca-
ted in the vicinity of the battery (max. distance from bat-
tery: 30 cm). The fuse ratings are 2 x 30 amperes, both
must be installed as the amplifier protection rating is 60
amperes (2 x 30 A).
5 - 8 Signal inputs
The H 400 ESPRIT has RCA
connections for cinch cables leading
from the pre-amplifier outputs, the
line outputs of the head unit or the
outputs of a pre-amplifier/equalizer,
e.g. HXE 100. These connectors are
gold-plated in order
to ensure better
signal transmission.
9 - 12 Level controls for input sen-
sitivity
These controls can be used to match
the input sensitivity of the individual
channels - A to D - to the output vol-
tage
of the connected head unit. These controls are not
volume controls and are solely intended for the purpose of
sensitivity trimming. The control range extends from 330
mV to 8,4 V.
13 Selector switch for channels A and B
For switching the plug-in frequency crossover modules to
high pass, full range or low pass.
14 Selector switch for channels C and D
For switching the plug-in frequency crossover modules to
high pass, full range or low pass.
15 - 16 Mono/Stereo Selector
For switching the amplifier into 4 - channel operation mode
both switches must be in stereo position. To use the amp in
3- channel mode (front / sub), the front channel has to be
set in stereo and the sub channel to mono/ bridged.
Warning:
The impedance of the woofer in bridged mode must not be
lower than 3 ohms!
17 - 18 Plug-in frequency crossover modules
The H 400 ESPRIT are equipped as standard with an
85 Hz/12 dB Oct. frequency module. Other plug-in modu-
les compatible with H 500 ESPRIT such as variable high-
pass/low-pass frequency modules, are available on request.
The individual functions of the frequency modules are
visually displayed by colored LEDs.
These have the following meanings for all modules:
yellow = high pass
green = full range
red = low pass
red and yellow = band pass
If required the plug-in frequency crossover modules are
available with a 28 Hz/18 dB Oct. subsonic filter.
19 Speaker connection terminals for channels
A and B
20 Speaker connection terminals for channels
C and D
21 - 23 CPS-Color Protection System
The LEDs show the operation status of the amp.
Green = O.K.; yellow = the speakers wires are shorted to
ground; red = over heated. If the amp shuts off due to
overheating it will take some time (depending on the outsi-
de temperature) until it switches on again.
Important notice
Never connect the speaker wires to the chassis of the
vehicle. This can destroy your amplifier. All speaker
systems must be connencted in-phase, this means plus to
plus and minus to minus. The plus pole is normally marked
on the speaker. In addition, the amplifire can operate chan-
nels A and B as well as C and D in stereo or mono mode
(bridged).
Besides from stereo and mono mode, the amp can be
connected for tri-mode use, which means that two stereo
speakers can be operated with one pair of wires (AB or
CD) and have a third speaker connected in mono mode.
Please see basic instruction sheet for various speaker
connections.
Technical specifications see page 16.
H 400 ESPRIT
11
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Power Specifications
