My FI BTL15 is on its way and right now im working on getting the money for a high output alternator...locally a guy can make me a 120 Amp Alt. Is a 120 Amp alt enough to power the 15" Btl????...im going to be running a Hifonics BRZ 2100 at 1 ohm probably round 1900-2000watts steadily....im an everyday banger so its gunna be seeing a lot of work I have a Kinetik HC1400 as my main battery and a HC2000 in the trunk (Upgraded Big 3 to 0AWG)