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mb quart q4.150

  1. MB Quart Q4.150 vs. PPI P900.4

    General Car Audio Discussion
    I need help deciding between the MB Quart Q4.150 and the PPI Phantom P900.4. I need some somewhat in depth comparison between the two, I'm looking for good SQ and efficiency (SQ is more important). I will be powering tweeters with passive crossovers so I need good highs. Running off a Pioneer...