Hey I tried a GK400RB-III at GC for the first time and it was awesome. However I'm curious is 240 watts loud enough to compete with say a 100 watt guitar half stack? The music I play would be considerably loud so I'm hoping the GK owners out there can comment on this. Also what they thought about everything else sound, reliabilty, what cabinets they powered with the head. P.S. Is $420 a good price?