depends on what ohm you need the power at //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif plus the crossfire is rated at 12 volts. The Goliath from what i hear also breaks easier
I would go with the crossfire. Run it at 1ohm have a strong electrical and your good //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
Take a look at that monster, DRAWS UP TO 400A that means that these power ratings:
Peak Power 3900W (
RMS Power 1000W x 1 @ 4 Ohm
RMS Power 2000W x 1 @ 2 Ohm
Mean nothing, if your looking for some serious power and bang for your buck i'd go with the CD-3910 over both the Goliath or the Crossfire. Just make sure you have a strong electrical setup for it, as it draws 350-400 AMPS!