Not familiar with the specs on the premium sound system. Adjustment on the JL amp were straight forward and easy to understand, even for someone like myself who is not an audiophile (though I am an engineer). I paid a premium for the components since I decided to buy from a local high end car stereo shop so I would have some support in case I got into trouble. In the end it was much easier than I anticipated. Only problem now is that the integrated bluetooth phone comes on at very high volume, at bit of an inconvenience that I hope to solve.
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