Well I am helping my friend do a new system on his 99 Corvette tomorrow. He is already got an Alpine CDA-9883 for the head unit and has an Alpine MRP-F240 ([email protected], [email protected]) We havent decided on rears but I think Im going to throw some type S or type R coax in the back off the headunit and trying to decide on either the SPR-17LS components or the SPX-177R with that kind of power. He is wants something that he will be able to crank up and get loud but not really have alot of distortion. From my experience the Type Rs would be the way to go since they will get very loud they dont have a ton of bass but the Type X dont seem to be as bright as the Rs...What would you guys say? By the way its ONLY between these two sets..