Over the years, I used this pickup with a Roland GM-70, a Roland GR-50, and a Gibson Labs MAX guitar MIDI controller.

I recently tested it on my GR-50 (recently sold), and it works great. I had it mounted on my custom-made solid-body guitar, on which it lived for years. It was very lightly used.

Original documentation is included (two copies).

Most of the original mounting parts are included. Importantly, included are the pairs of screws and springs needed for mounting on a solid-body guitar.

In order to mix the natural guitar output with the MIDI signal you will need the short patch cable that runs from the ¼" jack on the guitar to a mini jack on the GK-2. This is included.

Also included is the Roland C-13A cable. This cable is required. This a special cable that connects the GK-2 to your MIDI controller (eg: GR-50, MAX, etc.). It is not a standard DIN connection. You will need this cable, unless you already have one.

In considering the price, remember that this is a bundle: GK-2 with the C-13A cable. The GK-2 was not originally sold with this cable; rather, it was sold separately.

NB: You can use this pickup with older Roland gear (e.g.: GM-70) that worked with the GK-1 pickup; however, this would require the use of the Roland BC-13 Bus Converter (not included).