IMO the Amp is the most important piece (& most expensive piece in my system), since it will determine the system power & speaker type.
Not sure how to address this but say wrong.. AMP isn't the most important part of system. And if it was you go with a mono block and 2/4 channel amp for speakers.
2011 GT Coupe Premium | MT6 | 3.73's | Security Pkg | BREMBO | Comfort
Installed JLT oil catch can, Tint, Beltronics RX45/shifters