I recently had a thread where I was selling both my 400RB and this amp, the 400RB sold a long time ago so I've closed that thread and just made this one for the 200RCB. This is one of the few GK amps that has chorus. RCB = "rackmountable chorus bass." It is NICE chorus. Everything from subtle to incredibly lush and deep. Sweet child = no problem. It's footswitchable! A while ago I was GASing for a chorus effect and just couldn't find a pedal that would do it for me. Then, I found out about these amps and gave it a go. I was not disappointed! At the moment, I haven't played in a band in over a year and am unloading most of my bass gear in transitioning to another hobby. I'm keeping my 2000RB, cab, basses, but everything else is going! GASing for other things! When I got the amp, it didn't have the rack ears (sorry!) but if you call GK and ask nicely, they will do some digging around in their wares and they might just have some, you never know. Back when my 2000RB needed repairs they looked real long and hard in the warehouse for parts that were discontinued and FOUND SOME! I was real happy with GK customer service that day and have been since. This amp dates March of 1986. It has the appropriate signs of use on the chassis (scratches). One of the knobs is missing a cap but that's it. This amp is ready to ship to your door for $115! I've been worked down from $150, this is rock bottom and is a stupid low price for a great amp. Paypal preferred. If you are local, we can do $100 cash.