Quoted from auction
These mid-bass speakers will play frequencies that your subs can not hit. Most mid-bass drivers can not handle even 25 % as much power as these. If you read through the specs on these speakers, you will notice that they sound much like the specs of a $300 subwoofer. That is because in order to build the loudest 6x9 speakers on the market the Cadence engineers had to create these with the ability to handle more bass than most subwoofers. They created these monster 6x9 speakers with 2" voice coils (usually only subs have 2" voice coils), and double stacked 70 OZ Magnets (most subs have magnets half this size).
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