
I've worked in an electronics store selling and installing car audio systems for over 20 years and only recently decided to upgrade my 2017 4runner so it's been a long time. Since I don't have time to go to regular stores and audition, I chose a reliable brand that I always turn to. I can't compare myself to other brands but I can say that this Alpine device exceeded all my expectations. This unit delivers really tight and clean bass and has just enough heartbeat for my in-car enjoyment. As many reviewers have repeatedly said, don't compare it to dedicated 10/12 inch boxes with separate amps. This unit fits perfectly under the driver's seat and produces a powerful rumble that you can feel. As with most upgrades, results can vary by build and my review is based on a full upgrade that includes the main unit, a separate amplifier driving the front and rear speakers, with Alpine adding bass. Alpine impresses me as always and I expect the same quality as other Alpine products including the single din head unit I have in my 1999 Lexus GS which is 15 years old.

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