User`s manual

9
IMPORTANT NOTES PRIOR TO INSTALLATION
- This device is only suited for a 12 volt system with negative ground.
- Theradiatedheatwhileoperationrequiressufcientaircirculationattheplaceofinstallation.Itis
veryimportantthattheheatsinknsdonothavecontactwithanymetalpartsoranysurfaceswhich
couldimpairaircirculation.Theampliermaynotbeinstalledinsmallclosedlocationorspaces
without air circulation (e.g. spare wheel recess or below the vehicle carpeting). We recommend the
installationinthevehicle’strunk.Ensuresufcientprotectionagainstvibrations,dustanddirt.
- Ensurethattheinputandoutputcablesaresufcientlyseparatedfromthepowersupplycables.
Otherwise interferences may occur.
- Ensure the accessibility of the fuse and the operating elements after installation.
- Thereliabilityandperformanceoftheamplierdependsonthequalityofinstallation.Preferably
consult an expert to install the system, particularly if you want to install several loudspeakers.
POWER SUPPLY AND TURN-ON-CONNECTION
INTERCONNECTION
ATTENTION: Before you start with the installation, disconnect the ground connection from the vehicle’s
battery in order to prevent short circuits.
Thepowerwiringwhichisusuallyinstalledinon-boardcarnetworksisnotsufcientforapoweramplier‘s
demands.MakesurethatthepowerwirestoGNDandtothe+12Vterminalhasbeensufcientlyspecied.A
cable crosssection of at least 10 mm
2
mustbeusedtoconnectthebatterytotheamplier‘sterminals.
FirstconnecttheGNDterminaloftheampliertoanappropriategroundconnectionatthechassis.Toensurea
good connection, residue dirt and dust from the connection point. A loose connection may cause malfunctions
or interferences noise and distortion.
Thenconnect the+12 V terminalof the amplierwith the batteryby using anappropriate cable including
an in-line fuse. This fuse should be located very close to the battery; for safety reasons not more than 30
cm away. Only insert the fuse when the installation, including the connection of the loudspeakers, has been
accomplished.
Thenconnecttheremoteturn-on-wirefromtheheadunitwiththeamplier‘sREMOTEterminal.Acablewitha
cross-section of 0.5 mm
2
is adequate.
LOUDSPEAKER CONNECTIONS
- The total impedance must not be lower than 2 ohms.
- Never connect loudspeaker cables with the ground of the chassis or the +12 V supply voltage.
Iftheamplierisoperatedwithatoolowimpedanceorincorrectlyused,theentiresoundsystem
may be damaged. This means a warranty void in such cases.