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The Planet Audio AC8D is a single 8-inch car subwoofer with a dual 4-ohm voice coil, rated by the brand at up to 2400 watts peak. The dual voice coil lets you wire it to 2 or 8 ohms, so it fits a range of amps and small sealed or ported boxes. It suits tight spaces: trucks, hatchbacks and factory 8-inch locations where a bigger sub will not fit. Against pricier 8s from established sub brands, it trades refinement and long-term durability for output claims and low cost of entry.
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Lowest price we've seen: $98.39 on Nov 9 at Best Buy. Tracked across 1 store since Nov 9.
Owner feedback on the AC8D is mixed. People like the small size, the low cost of entry and the dual voice coil wiring options, but several report it does not deliver deep, loud bass and some units failed early.
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