Hifonics used to be one of the best amps out there. However, they were bought out by another company and sad to say the quality was downgraded. I don't think the amp has enough power to give you loud sound (55x4) is just not enough, in my opinion. Id look for a PPI amp or hifonics amp(older model, used) that has at least (100x4) for the highs. I'd do about 4 to 500 watts for the bass(again older PPI or hifonics). Ratings are not to be trusted unless the amps are of a high quality, reliable source. <_< With this kind of clean and loud power you're also going to be need too upgrade the alternator to around 160 to 200 amps for the best sound, plan on spending about 5 to $600 for wire, alternator and all the other parts needed. When you're ready let me know as I'm an expert in upgraded electrical systems and can help you out immeasureably in guidance.