I have a Rocktron Programmable Bass Preamp. This is a midi programmable preamp, but it can be easily operated as a stand-alone with a power amp. Most of the programming is done with knobs so the learning curve is pretty friendly. Compressor Three bands of semi-parametric EQ Chorus, and it can be programmed to provide digital delay Input and output level controls LED clip indicator HUSH II noise reduction Thirty factory presets, and you can store 98 of your own patches. Footswitchable increment/decrement between patches Wet and dry outputs One rack space This thing sounds great. It would be really useful for someone in a cover band, or any situation where you needed to change tones on the fly. I'll post some pictures soon. I'm getting simple in my old age, so I'm looking to convert to an Alembic or Demeter preamp. You can have this one for $230 shipped to the lower 48, or I'll give you this preamp plus/minus cash for an Alembic, Demeter, or something similiar.