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7
Amplifier Connections
Speaker Connections
Connectspeakerwiresobserving
polarity. Theminimumimpedance
loadfortheXPR522orXPR540
is 2 ohms stereo and 4 ohms
bridged.Useofloadslowerthan
these is not recommended and
maycauseamplifierdamage.The
XPR522andXPR540canbewired
forstereo,bridgedorstereo/
bridged simultaneous operation.
Input Signal Connections
Low Level Input (RCA)
Lowlevel(RCA)inputsignalispreferredforbestperformance.Typicaltrunk-mount
amplifierinstallationsrequirea17-20footRCAcable.Mosttrucksandunder-seat
applicationsrequirea6-9footRCAcable.UsingtwistedpairconstructionRCAcableswill
minimize noise.
High Level Input (Speaker Wire)
High level inputs should only
be used when RCA outputs are
not available from the head unit.
Connecttheheadunitspeaker
outputstothehighlevelinput
connectorasshownbelow.The
blackwire(signalreferenceground)
mayormaynotrequireaconnection
tochassisground-dependingon
your particular installation.
Subwoofer (mono)
Typical Bridged Wiring
(4 ohms minimum)
2 Speakers (stereo)
Typical Stereo Wiring
(2 ohms minimum)
HI-LEVEL INPUT CONNECTION
Grey = Right (+)
Grey/Black = Right (-)
Black
= Ground
White/Black = Left (-)
White = Left (+)
CAUTION
Donotusebothlowandhighlevelinputsatthesametime-connectonlyoneortheother.
XPR522speakerconnectionsshown