ADCOM SLC-505 Straight Line ControllerDo traditional preamplifiers have you down?  Irritated with the hassle of having to locate them next to an AC outlet or with so many buttons that require taxing your brain cells when you just want to get to the music. Then this is the component for you!The SLC-505 is simply a high-quality box to switch between your multiple sources.  If you don't require any gain in a preamp stage, this may be the solution that simplifies your audio path for pure uncolored stereo magic.  No remote, no power... no problem!I have been rotating this in/out of my systems for nearly 20 years and it has always proven a reliable partner due to its simplicity and single purpose focus.Some minor chips and scratches as shown.  I'd rate it a critical 6/10.Thanks for looking.