I'm selling a mint condition Raven Labs PMB-II. I'm including the optional power supply. This is a fabulous preamp/mixer for double bass. One channel is for a piezo pickup(Fishman, Underwood, Realist, Bass MAx, etc.). The other is for a microphone, and has phantom power for condensers. When Steve Rabe(founder of SWR) started Raven Labs, he offered very high quality units for bassists. The PMB-II was highly recommended by Bob Golihur. When Steve decided to stop production of all Raven Labs units, the remaining stock went very quickly. This particular unit is in mint condition. I only used it for a short time before realizing that I couldn't use a mic in the settings where I usually perform. I paid $299 plus $20 for the power supply(it can also run on 9v batteries). The only equivalent new preamp is the D-Tar Solstice for $329 from Bob Golihur. I am asking $225 + shipping. I prefer Paypal, but I will take checks or MOs after clearing. I will only charge the actual shipping cost(depending on your choice of carrier). All Raven Labs units command good prices on Ebay because they rarely come up for sale. I can email you pics if you PM me.