Well thanks for all the helpful info! Any thoughts on the CarvinBX500? Its going for around $310 through carvins site right now and I like having the option of being able to switch to a visual EQ since I don't really know *what* I like yet.
Do you have any recommendations on affordable cabs that might pair well with some of these amps? Am I usually better off going with a cab made by the same manufacturer as the head?
Used to own a Carvin BX500 and I have an anecdote to go along with it lol
It's a very clean amp, but sometimes when you want to push the rails and get something grindy and aggressive, it falls short before getting there. Mine eventually pooped out despite being babied to the extreme and not even having dust inside the unit when I cracked it open. Carvin couldn't care less, they said it would be $200 + shipping to repair it. I would
personally recommend staying away.
If anyone tells you that GKs are "clean" or "sterile", they haven't played one at a decent volume or don't know how to dial in a good sound on them. The GK MB200 made me a believer in the GK stuff. Very grindy, aggressive, and sounds good with several types of basses with minimal re-EQing. With the Carvin, you had to adjust your EQ if the stage lights were too bright that evening.
Can't say I've played through the Kustom, but I hear people say good things about it (
Especially mr. Low Class

). If you can try any of these amps in person, bring your bass and do just that. No need to pair cabs up with the same manufacturer, but there are some advantages. A lot of them try to promulgate or bring out their "signature sound" and rely on the cabs to do that as much as the head. I have a Fusion 550 from GK paired with two Fender Rumble V3 1x15s, it sounds great and tubey, exactly what I was going for. If I dial it in right, it can sound big and aggressive as well...VERY big and aggressive.
FWIW, the MB200/500/800 and MBF500/800 have the same tone stack as my big Fusion 550 does. Some thought to chew on.