Jensen XA2150 Car Audio Amplifier "type fuse battery subwoofer speakers" Questions

...fuse, battery and subwoofer but still don't know how I can fix it and have my bass sound back. I'll appreciate if you can help me. Thanks. Best Regards. Ricardo. Chile Have you checked the ...

fuse at the battery. Some fuses, especially AGU (glass tube) type, can fail even if they don't look blown. The next test is to disconnect the speaker wires from the amp and test the resistance through