I prefer Boston Acoustics personally. I have S50 5.25 inch components and S55 5.25 inch coaxials in my little Nissan hatchback and they sound great. They are only powered by my Alpine CDA-105 right now, so I am excited to see how they sound when I get an amp for them. The SC series should sound even better than the S series that I have though. They sound really clear, and they are pretty detailed as far as mids and highs go.