Boston Acoustics GT-20 GT-222 instruction

GT-20 GT-22

2-Channel, High-Current/High-Power Ampliﬁers

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Boston Acoustics GT-20 GT-222 manual Channel, High-Current/High-Power Ampliﬁers

Contents

GT-20 GT-22 Channel, High-Current/High-Power Ampliﬁers Table of Contents Features and Speciﬁcations Parts List Control Functions Lowpass Crossover Controls Status LED IndicatorsControl Mechanical Functions Ampliﬁer Linking Wire ConnectionFuses Before You Install General Installation PrecautionsBattery & Charging System Wire Routing Choose the Mounting Location Installation-Ampliﬁer Mounting Wire Gauge Installation-Fuses & WiringPassenger & Trunk Compartment Mounting Ampliﬁer Fuses Remote Input Connection Power/B+ & Power/GND ConnectionSpeaker Output Connection Mono Subwoofer Operation Setup Tuning-Full-range SpeakersMusic Highpass & Lowpass Crossover Controls Head Unit VolumeCrossover Controls Setup Tuning-Subwoofers Setup Tuning-Rear Fill Speakers Lowpass Crossover Control Phase System A-Full-range Front Speakers System ExamplesSystem B-Rear Fill Speakers System D -Parallel 4Ω Subwoofers 2Ω load System C-Single Subwoofer 2Ω Status 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