Why call them, they already included paper work with the amp explaining everything. This is what the sheet said,
"400HD..4x2879,Class C bias, fan cooled.Max amp draw 110a, install recommended with 4ga wire and 125a fuse. (Max input carrier of 20w or"300w from amp"). Max peak input 240 w."
That pretty much says it all really. I would prefer keeping the dead key in the range of 6-12 watt range and peak input under 120 watts. That's just me though.
good luck on getting them answer the phone...… I had a straight 6 that had problems when I first got it, I tried to get up with them for almost a year (emailing too) and never got a answer from them. After Carl sold the business it went to hell ion a hand basket. And yes they do use substandard parts ( PP100 transitors ) the cheapest parts they can get at the time they order new parts. I will never buy anything from X Force again.Just call Xforce and ask them. 847-561-4971 I'm certain they have the answer to your question. You'll get a lot of good advice here but if you want to know what the builder means by the specs provided you should ask him. If you tell him what your set-up is he'll tell you exactly how to run this amp...
Very old thread.good luck on getting them answer the phone...… I had a straight 6 that had problems when I first got it, I tried to get up with them for almost a year (emailing too) and never got a answer from them. After Carl sold the business it went to hell ion a hand basket. And yes they do use substandard parts ( PP100 transitors ) the cheapest parts they can get at the time they order new parts. I will never buy anything from X Force again.