I have a 2025 X4 M40i that had the upgraded HK sound system. I was wondering if the Alpha One kit would be worth it? Would Alpha One sound that much better? After installing the complete kit (with amp) I have to say... Yes. Definately. For sure. Without a doubt. More detail in highs, mids, and lows with volume so loud you feel the music. If you are wondering if Alpha One is that much better than HK, it is. I installed it myself and I have never installed car audio before, albeit BimmerTech customer support helped me with the amp.
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