EXI[S]T is an adaption of Mannequins’ RIP. The name is a tribute to Meng Qi’s module “Please Exist”.
With the exception of an added attenuator, the circuitry is almost identical. The idea behind this adaption is that it can be integrated with cases with rear mounted jacks (e.g. Intellijel cases) and can be configured in several ways.
A detailed description, Eagle files and BOM are on GitHub: https://github.com/sonoCircuits/EXIST-RIP
However, here is a quick overview:
Input either via 1U module (Intellijel and Pulplogic format) or Intellijel Mixup module.
Output either via cables and TRS jacks soldered to the transformer board, an Intellijel Audio Jack rev2 board or an Intellijel Stereo Line Out Jacks module via 6 pin ribbon cable.
(I haven’t had the chance to test the IJ Audio Jack board as I do not have one, but the pinout should be correct according to a schematic I found on the Intelljel forum. However, it would be great if someone could double check this.)
I still have a few PCB sets available.
There will be a thread under Trades soon.
Trade thread is online: https://llllllll.co/t/fs-eu-ww-exi-s-t-nearness-offworld-swich-trade-thread/29196
A big thanks to @Galapagoose for making RIP open source.