Soundstream Components

[gattiboy13]

I currently am running 2 sets of Alpine type S components 6.5" and am looking to upgrade within a $150 per pair budget. I was looking at these

http://www.onlinecarstereo.com/CarAudio/p_16600_Soundstream_RF-60C.aspx?utm_source=google_shopping&utm_medium=Product_Feed&utm_campaign=google_shopping_Price_Comparison&gclid=CPX9n6WbsrkCFcd_Qgody0UAKg

any input would be greatly appreciated. Thank you.