the equipment is an advantage in car audio but the install makes the sound.
for amps- the best ones out there are brax,arc audio , mcintosh,zapco.
best for the buck is a different story - you need to find good deals on these said amps . there a lot out there .
i was able to find an arc audio 100x2 amp 2100 cxl for 300$. now that is a good deal .