I'm looking for a cabinet for my lonestar head and am a little confused regarding ohms. Is there a difference in sound, power handling, etc... between an 8ohm and 4ohm cabinet? The amp has two 4ohm outputs and one 8ohm output, so I'm not sure if its best to get an 8ohm or 4 ohm head or if it makes a difference. Does it depend on which mode is being used (50w vs 100w) at all?