IMHO I think the Rockford amps are good bang for buck, but do tend to lack in the refinement department. I used a Rockford 600a5 5 channel amp to run a Rockford DVC sub and a set of Rockford FNX components, to me the sound seemed to lack clarity and definition. This is why I have decided to go for a Genesis amp this time round, for clean refined power and excellent sonic ability. I think Pheonix Gold is very good also, as are the JL Audio amps.
As for the speakers, I have used Infinity components in the past and found them ok, a bit bass light for my taste and the tweeters can be a bit fragile. I would look at the likes of JL Audio/ Focal/ Diamond Audio/ Crystal/ Dynaudio/ DLS/ etc. Have a look at www.caraudiodirect.com for a good s election and better prices than Hellfrauds, top service too in my experience.
As for the speakers, I have used Infinity components in the past and found them ok, a bit bass light for my taste and the tweeters can be a bit fragile. I would look at the likes of JL Audio/ Focal/ Diamond Audio/ Crystal/ Dynaudio/ DLS/ etc. Have a look at www.caraudiodirect.com for a good s election and better prices than Hellfrauds, top service too in my experience.