People can say what they want about a 1x4 amp but I have had the same Fatboy 1x4 mobile for a least 7 years. It was used when i got, all original Toshiba 2879's. Its been in numerous road tractors and Im running in my pickup now on the same Galaxy 44v. Set radio on 2 watt and let her eat. I do, however, think 1x2 amps are useless. If you can't get a radio to drive 2 pills you need to use that radio for a wheel chock!!