Have you tried swapping the cabinets around i.e. hook the existing right sub up to the left sub output on the amp and vice-versa? This will tell you if it is actually the cabinet or a problem in the amp. If it is the amp, then try swapping the interconnects around between the splitter and the sub amp. If it always stays on the same side of the amp, the amp needs repair. If the problem follows the individual cabinet, the cabinet needs attention.
No, not all subs are created equally. Sean
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No, not all subs are created equally. Sean
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