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Speaker connection Never connect the speaker cables with the chassis ground. This may destroy your amplifier. Check that your speakers are connected correctly which means plus to plus and minus to minus. We recommend speaker cable from 2.25 mm to up. The connection ways are shown in the attachment.
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Bridge in This RCA jack receives signal from the master amplifier when this amplifier is bridged as slave. DO NOT use input jacks when the amplifier is working as slave. All the functions will be adjusted by the master amplifier. Bridge out This RCA output sent out bridge signal to another same Class D amplifier in bridging configuration...
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We recommend to have the installation done by an Authorized Audiopipe Dealer. Required power, ground wire and proper external fuse as below: Model Fuse Wire APCL-18001D 120 AMP 0 to 2 Gauge APCL-30001D 200 AMP 0 to 2 Gauge We recommend a fuse should be installed away 0.2m from the battery. The ground wire should be connected directly with the chassis of your vehicle which should be metal to metal ground point connection.