I'm about to get a Alpine PDX 4.100 for my Nissan 370Z with Pioneer C720PRS component fronts and a JL W6 8" sub. My concern is this amp a drag on my cars electrical system? Something that may cause a problem? I could get by with less power, like maybe an Alpine MRP-F300 50 rms per channel, but is the PDX a better route, being more a sophisticated Class D? Any experience with this amp would be appreciated. It uses a 60 amp fuse.