Hey Gang, Just purchased this from a fellow TB'er last week. Installed it into my jazz and the tone possibilities are mind boggling. Easy drop-in application. No soldering required. Just attach your existing pickup wires to the convenient screw down posts and you're set. Took me about 20 minutes from start to finish (and I am not mechanically gifted!). The controls are as follows: Layout: Master Volume: Push/Pull for Series/Parallel 3 way Switch for pickup selection. Bridge/Neck/Both Master Tone: Push/Pull for varitone/varitone bypass 6 position varitone rotary knob. Lots of tonal options in a passive package Here's a quick description of the Varitone control: A 6 POSITION VARITONE ROTARY SWITCH WITH DIFFERENT TONE CAPACITORS: 1 SLIGHT TREBLE CUT HI MID 2 MORE TREBLE CUT MORE MID 3 LOW MID 4 WARMER MID TONE 5 DARKER TONE (MID SCOOP) 6 DEEPER MID SCOOP TONE. That said, it's more tone possibility than I currently need, so off she goes. Here's the original sale thread: http://www.talkbass.com/forum/showthread.php?t=634713&highlight=varitone And a link to a video demo: Please follow the original links for pics...it looks exactly as it did when I received it (which is essentially brand new!). Asking only what I paid for it... $100 Shipped to CONUS. Paypal preferred.