I have a little brother who also plays the bass, and is interested in getting an amp with a seperate speaker cabinet. He's looking at a price range of about $500-$1000 total. Right now, he's liking the idea of getting an Aguilar GS 112, but is unsure of the amp head. The problem seems to be that there aren't too many heads that are 8 ohms. Most are 4. I'm actually wondering about that myself, because I know that a lot of people are starting to use 112s as stand-alone cabinets, and they are all rated to take 8 ohms. Anyway, I've given him some suggestions but he'dlike some more feedback. Any thoughts?