PERFECT AMP GAIN SETTING COMPLETELY FREE!!!
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DON'T SET AMP GAIN with a DIGITAL MULTI-METER!!!!
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How to TUNE Car Amplifier & Set Gains
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Amplifier Tuning Settings How To - Gain, Crossovers, Bass Boost
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How to tune amplifier and set amp gain by ear properly
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Tech Stuff Tuesday - Amp settings using only a multimeter
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TEMU AMPLIFIERS! UNREAL VOLUME from TINY AMPS!!
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