Tomorrow marks one year since we announced the MK-609, our painstakingly recreated replica of the original Neve metal knob 33609.

The 33609 has long been near the top of the list of most requested units, so we knew if we were going to take it on, we were going to do it right. In the end, it took nearly four years of meticulous R&D to bring this British classic to life. Much of that time was spent tracking down rare, obsolete, and in some cases nearly unobtainium NOS parts to build the most authentic 33609 circuit possible in the 21st century.

In fact, in addition to being one of the most complicated builds to design, build, and calibrate in QC, the MK-609 may have the most rare NOS parts of any of our units. It took literally years of scouring the US and UK surplus market to find all of these. However, this step was absolutely essential to building a truly authentic 33609. Here are a few examples: