Appendix a: service information, Troubleshooting, Owner’ s manual – MACKIE 18" Powered Subwoofer HD 1801 User Manual

Page 15: Poor bass performance, Poor sound, Noise, No power, No sound

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Appendix a: service information, Troubleshooting, Owner’ s manual | Poor bass performance, Poor sound, Noise, No power, No sound | MACKIE 18" Powered Subwoofer HD 1801 User Manual | Page 15 / 21