Hi.. I'm buying my first proper bass rig soon. I've found this rig at a good price second hand. GK 700RB head (not the mk2) AMPEG 410HLF cab Now I'd like to know if these are a well matched pair. The 700RB is 380W into 4ohms. The Ampeg cab is a 4ohms cab but the ampeg website states the cab ia rated at 500W. Does this mean the 380W head is underpowered to drive this cab? Another question about the 700RB is do I need to leave space above and below it for ventilation? I would like to flush mount it tightly with foam on each side (not front and back obviously) to keep it safe on the road. Does the head only require front and rear ventilation or are there also vents on the top and bottom. (The amp is in another state so I can not see it until it gets shipped down). I read somewhere the fuse for the 700RB is located internally and can be a real pain to change quickly. Has anyone considered modding the amp to replace the internal fuse with an externally accessible replacement? It should be quite easy, just wire in a new fuse case that mounts to a new hole in the rear of the amp (there has to be some space for one). http://www.allelectronics.com/images/gold/full/FHPM-45.jpg thanks.