Pretty new to car audio, so I've got a question. As of now I'm running a Tru s45 in 3 channel with an SSLD6 to a pair of rainbow vanadium 230's and a boston g310-44 sub. I just don't have enough bass, and I'm looking to add another amp to power my sub. I'm a tru fan, and have been on the hunt for a hammer h-1. I've been looking at a lot of bigger amps, and they all require extra batts and power. I don't really want or need to get into that much of a system. My question is, when do I need to add another battery or upgrade my alternator? Will I need to if I can get a Hammer and run it at 2 ohms to my sub? Thanks for the help.