I've tried other brands at similar prices, but for the money nothing beats Polk Audio (especially when paired with a pioneer head unit). This model is the shallow mount as opposed to the regular DB651. If you can fit the DB651 instead of the DB651s, go with the non-s model. It has a slightly bigger magnet and will give you a better low end response. All in all, Polk makes some great speakers. When I bought these from Sonic they were priced at about $65 /pair which is a helluva deal for these speakers.
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