Here is a Channel Islands Audio VPC-3 passive controller in excellent condition! I purchased this new a couple years ago and it has worked flawlessly. Very well-built and solid engineering from a well-respected audio company. I used it as a passive source switch before I got my current preamplifier. It has two stereo inputs and two stereo outputs. Both outputs are controlled with the pot on the front. You can open it up (with the supplied hex wrench) and move a couple of jumpers to make the second output a fixed level output if you like. Comes in original box and includes a copy of the manual.