9-Pin Switching Jack w. Rectangular Plastic Housing for Fishman Powerchip

To be fair I may not be the intended market... but still great.

I'm not sure WHY 9 pin 1/4 jacks are such an oddity or why the primary source of them is guitar repair/parts sellers. But I used this to repair a Marantz 2230 receiver. I don't even know how to play guitar or what the intended use for this even is. However if you have a Marantz 2230/2245/2270 and a few others that use this truly unique headphone jack configuration, well this is the part you need.