General
The Koch '63 is more than an overdrive pedal. You can use it as a normal effects pedal, but also as a preamp so you can connect the 63'OD directly to an amplifier. Add the fact that the distortion of the 63'OD is wrought by a 12AX7 tube, ensuring warm and organic sounds and you can see that, with Koch, it's top quality all the way. The 63'OD is a stomp box that is modelled after the Koch Pedaltone, but which focuses on milder, bluesier overdrives.
Connecting the 63'OD
As mentioned above, the 63'OD can be connected to the input of a power amp. You can use the same jack output to connect it to a combo or head or to incorporate the pedal into an effects loop. Additionally, the 63'OD features an XLR output with speaker emulation for a convincing sound to send to your mixer. Further still, the pedal has a Remote connector for an external MIDI switcher, for instance.
A practical pedal
You can adjust the timbre and volume of the Koch 63'OD with the six controls on the top. There are two quiet foot switches that allow you to switch between three sounds. You can use the left foot switch to change between the very transparent clean channel and the thick, '60s/'70s-style blues/rock tube sounds of the overdrive. The right switch should give the overdrive a proper gain boost. Practical extras include two effects loops - a pre version to connect effects like compressor or overdrive, and a post version for delays and reverbs, for instance. Another practical feature is the 9-volt output, via which you can power a series of other pedals.