I understand, those links I posted are not eBay products. Those are products sold on eBay. I would never buy buy eBay knock offs.
I was under the impression that the stuff I posted is high quality.
http://www.cdtaudio.com/cl_series.htm
http://www.maxxsonics.com/
http://www.cadencesound.com/categories/Amplifiers/
My next question is then what defines high quality car audio? Specially what should one look for when shopping for high quality audio and how to tell the difference between high quality and bottom barrel.