I have a J-RETRO in Chrome. Its in great condition, with some minor wear. It has served me well. I have noticed some very very light noise. Probably the poor installation job by myself, might just need some contact cleaner, or somebody who knows how to solder well. The J-Retro is, in my opinion, the best preamp for the jazz bass. No color, just clean volume, with tons of tonal options. $130 Shipped Open to trades.