Boston Acoustics GT-424-Channel manual Channel, High-Current/High-Power Ampliﬁer

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GT-42

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Contents GT-42 Channel, High-Current/High-Power AmpliﬁerTable of Contents Features and Speciﬁcations Parts ListControl Functions Status LED Indicators Rear Input SwitchControl Rear RCA InputsMechanical Functions Ampliﬁer Linking Wire ConnectionFuses Before You Install General Installation PrecautionsBattery and Charging System Wire RoutingChoose the Mounting Location Installation-Ampliﬁer MountingWire Gauge Installation-Fuses and WiringPassenger and Trunk Compartment Mounting Ampliﬁer FusesRemote Input Connection Power/B+ and Power/GND ConnectionSpeaker Output Connection Setup Tuning-Full-Range Speakers Head Unit VolumeFront Input Sensitivity Control Front Crossover ControlsSetup Tuning-Subwoofers Setup Tuning-Rear Fill SpeakersSubwoofer Level Control Rear Input Switch Front Q ControlRear Crossover Control Rear Input Sensitivity ControlSystem A-Full-Range Front with Full-Range Rear System ExamplesSystem B-Full-Range Front with Rear Fill System D -Main Speakers with Parallel 4Ω Subwoofers 2Ω load System C-Main Speakers with Single Subwoofer 2ΩStatus LEDs on Ampliﬁer not Lit-Head Unit Source Turned on Ampliﬁer Troubleshooting GuideEngine Noise from Speakers Limited Warranty US Contact and Warranty InformationIf Service Seems Necessary