The Wife and I bought us one of these Magnus MA1000B's from an old ham radio operator friend of our's. We gave $500 for it. We were assured it operates perfectly and has had the 10/12 mod installation already done. We were told to drive it at 30 amps input for 550-650 watts output. I was reading some stuff online about it, and most recommended around no more than 55-60 amps input. The owners manual says 70 amps max input. My biggest question is, what will it's output be at 60 amps input? Also I installed two cooling fans atop the heat sink. They operate on 12vdc. If I have them connected off of one of the two megawatt 700-12-50 amp power supplies, at 13.6 vdc output, will they create any static in the radio? They say they are super quiet fans and low static corded. I'm still waiting on the power supplies to arrive, but from what I can see from connecting them to a 12vdc battery, they're unnoticeable. I'm using 8 gauge stranded copper wire to connect the power supplies to the amplifier. For 100 amps of continuous power. Will this also operate and charge my battery bank at the same time while operating the radio? The manual says it will operate completely fine on 75 amps. I'm told this amplifier is practically bullet proof if we don't over drive it and keep it cool. Is this a good amplifier overall? We're only planning on using it to contest and DX on 20 and 40 meters for now. We will be using it with our Kenwood TS-2000 and are hoping to avoid being stranded in the pile ups. Any advice from you hams who've owned one of these? They are somewhat rare to find being sold anymore. Any hints as to mic settings? We hope to use it with a MC-90 desk mic.