I own an Alpine CDA-9887 for more than three years and I have tuned my head unit over and over. I had six different presets in the memory for different types of music,Rap,RnB,Jazz,Rock,House. I decided to buy the Ktx-100eq because I read an article that this Imprint calibration kit completes the Head unit in terms of capabilities, after using this kit I could not believe the amount of detail that my tuning lacked and image that my system had after i imprinted my sound system. We used my buddy's laptop to do this...his words after we done my car was "unbelievable...how does Alpine do this?" Its an amazing piece of equipment and I don't know what I will do without an imprint now.
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