I dont' really understand the deal with GK and the 2 poweramp thing. For me I'd rather just have a single 400 watts amp cause I can't do much with an 100 watt one. I'm only going to be running one 4 ohm 400 watt rms 410 cab so I figure the 700 is the way to go if I can find one. I don't understand how the seperate horn driver works though. Its not like my cab has a seperate input for the horn. Does the amp just sort everything out itself?