Sad to see these go but I have too many amps and haven't had a band to play in for about a year now, so it's time to make space and get funds for other hobbies. GK 400RB - my first 400RB. It has a coat of what appears to be truck liner on the chassis, but I'm no expert. Lots of people seem to be doing this to their amps and cabs recently. This was not disclosed to me when I first bought the amp, and that bothered me a little, so I'm disclosing it, though it's actually a really nice job and I warmed up to it pretty fast. As if these weren't tough enough, this one is just a little tougher! $250 Shipped to your door GK 200RCB - "Rackmountable Chorus Bass" - I bought this amp because I really wanted a good chorus effect and couldn't find any pedals that were cutting it. If you're looking for a Sweet Child chorus effect, this is it. The chorus is no joke. It's footswitchable, also can be turned on or off by pressing the appropriate button on the front of the amp. So yes, this amp can run clean with no chorus. 100 watts at 4 ohms, this is very very light (lighter than the 400RB) and would be a great practice amp or for low volume situations. Like the 400RB it has the built in handle on the side for easy carrying. $150 shipped to your door UPDATE: I've decided to ship both amps. Post has been edited accordingly.